WO2004035636A2 - Polymerized cycloolefins using transition metal catalyst and end products thereof - Google Patents

Polymerized cycloolefins using transition metal catalyst and end products thereof Download PDF

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WO2004035636A2
WO2004035636A2 PCT/US2003/032474 US0332474W WO2004035636A2 WO 2004035636 A2 WO2004035636 A2 WO 2004035636A2 US 0332474 W US0332474 W US 0332474W WO 2004035636 A2 WO2004035636 A2 WO 2004035636A2
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branched
group
linear
alkyl
norbornene
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PCT/US2003/032474
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French (fr)
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WO2004035636A3 (en
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Larry F. Rhodes
Andrew Bell
R. Ravikiran
John C. Fondran
Saikumar Jayaraman
Brian L. Goodall
Richard A. Mimna
John-Henry Lipian
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Promerus, Llc
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Priority to AU2003287068A priority Critical patent/AU2003287068A1/en
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Publication of WO2004035636A3 publication Critical patent/WO2004035636A3/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
    • C08G61/04—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
    • C08G61/06—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F32/00—Homopolymers and copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F32/00—Homopolymers and copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
    • C08F32/08—Homopolymers and copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having two condensed rings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

Definitions

  • the present invention relates to methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating counteranion.
  • Polycyclic addition polymers having directly linked polycyclic repeating units without any internal backbone unsaturation are desirous from the standpoint of their inherent thermal oxidative stability and high glass transition temperature
  • Tg transition metal catalyst
  • Recent objectives in synthesis have focused on incorporating pendant functional substituents onto the polycyclic backbone, enabling this class of polymer to be utilized for a wide variety of uses. These objectives have been successfully met in" part because of the advent of late transition metal catalysts and their tolerance to functional groups.
  • An increasingly important use for such polymers has been in the manufacture of microelectronic and optical devices.
  • An important consideration in the manufacturing of polymers for microelectronic and optical applications is polymer purity. While specific classes of transition metal catalysts are tolerant to functional groups, there is a trade off in that monomer to catalyst ratios must be high in order to overcome the poisoning effects of the functional group on the catalyst. Consequently, many polymers contain metallic residues as a result of the high catalyst loading in the reaction medium.
  • transition metals have been shown to catalyze the thermal oxidative degradation of polymers.
  • metal residues in the polymer also deleteriously affect the polymer properties by raising the dielectric constant of the polymer and interfere with light transmittance through the polymer matrix. In order to be useful the residual metals must be removed from the polymer to below an acceptable level.
  • One method of catalyzing the polymerization of cycloolefins is through the use of cationic transition metal complexes.
  • Goodall et al. U.S. Patent No. 5,569,730
  • the preferred single component catalyst consists of a transition metal cation complex containing an allyl ligand and a weakly coordinating counteranion.
  • the multicomponent catalyst system employs a Group VIII transition metal ion source, an organoaluminum compound and an optional component selected from Lewis acids, strong Brpnsted acids, electron donor compounds, and halogenated organic compounds.
  • the monomer to Group VIII transition metal molar ratios are broadly disclosed to range from 1000:1 to 100,000:1, with a preferred range of 3000:1 to 10,000:1.
  • WO 97/33198 disclose a single component catalyst system suitable for polymerizing functionally substituted norbornene- type monomers.
  • the single component catalyst comprises nickel, a two electron donor ligand (preferably a ⁇ -arene ligand) and a pentafluorophenyl ligand.
  • the disclosed molar ratio of monomer to nickel ranges from 2000:1 to 100:1.
  • optical cycloolefin polymers which can be utilized for numerous end uses including electronic applications such as semiconductors or integrated circuits, as well as optical applications such as ophthalmic lenses, wave guides, optical fibers, optical adhesives, and the like as well as for coatings or encapsulants for optical sensors, coatings or encapsulants for light emitting devices, and optical encapsulants for various electronic devices, semi-conductors, and the like.
  • M represents a Group 10 transition metal
  • R' represents an anionic hydrocarbyl containing ligand
  • L represents a Group 15 neutral electron donor ligand
  • L represents a labile neutral electron donor ligand
  • z is 0 or 1
  • x is 1 or 2
  • y is 0, 1, 2, or 3, and the sum of x, y, and z equals 4
  • b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex (WCA), respectively, are taken to balance the electronic charge on the overall catalyst complex.
  • the monomer charge can be neat or in solution, and is contacted with a preformed catalyst of the foregoing formula.
  • the catalyst can be formed in situ by admixing the catalyst forming components in the monomer charge.
  • Figure 1 represents an Oakridge Thermal Ellipsoid Plot (ORTEP) of (allyl)palladium(tricyclohexylphosphine)(triflate).
  • Figure 2 represents an ORTEP of (allyl)palladium(tri-o-tolylphosphine)(triflate).
  • Figure 3 represents an ORTEP of (allyl)palladium(tri-naphthylphosphine)(triflate)
  • the catalyst of the invention comprises a Group 10 metal cation complex and a weakly coordinating counteranion complex represented by Formula I below:
  • M represents a Group 10 transition metal
  • R represents an anionic hydrocarbyl ligand
  • L represents a Group 15 neutral electron donor ligand
  • L represents a labile neutral electron donor ligand
  • x is 1 or 2
  • y is 0, 1, 2, or 3, wherein the sum of x, y, and z is 4
  • b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex (WCA), respectively, are taken to balance the electronic charge of the overall catalyst complex.
  • the weakly coordinating counteranion complex is an anion which is only weakly coordinated to the cation complex. It is sufficiently labile to be displaced by a neutral Lewis base, solvent or monomer.
  • the WCA anion functions as a stabilizing anion to the cation complex and does not transfer to the cation complex to form a neutral product.
  • the WCA anion is relatively inert in that it is non-oxidative, non-reducing, and non-nucleophilic.
  • An anionic hydrocarbyl ligand is any hydrocarbyl ligand which when removed from the metal center M in its closed shell electron configuration, has a negative charge.
  • a neutral electron donor is any ligand which when removed from the metal center M in its closed shell electron configuration, has a neutral charge.
  • a labile neutral electron donor ligand is any ligand which is not as strongly bound to metal center M, is easily displaced therefrom, and when removed from the metal center in its closed shell electron configuration has a neutral charge.
  • M represents a Group 10 metal selected from nickel, palladium, and platinum, with palladium being the most preferred metal.
  • anionic hydrocarbyl containing ligands defined under R include hydrogen, linear and branched C 1 -C 0 alkyl, C 5 -C 10 cycloalkyl, linear and branched C 2 -C 20 alkenyl, C 6 -C 15 cycloalkenyl, allylic ligands or canonical forms thereof, C 6 -C 3 o aryl, C 6 -C o heteroatom containing aryl, and C -C 30 aralkyl, each of the foregoing groups can be optionally substituted with hydrocarbyl and/or heteroatom substituents preferably selected from linear or branched C--C 5 alkyl,.
  • RN also represents anionic hydrocarbyl containing ligands of the formula ROC(0)0, ROC(O)CHC(0)RO, ROC(O)S, ROC(S)O, ROC(S)S, ROO, RO 2 N, wherein RO is the same as RN defined immediately above.
  • cycloalkyl, and cycloalkenyl ligands can be monocyclic or multicyclic.
  • the aryl ligands can be a single ring (e.g., phenyl) or a fused ring system (e.g., naphthyl).
  • any of the cycloalkyl, cycloalkenyl and aryl groups can be taken together to form a fused ring system.
  • Each of the monocyclic, multicyclic and aryl ring systems described above optionally can be monosubstituted or multisubstituted with a substituent independently selected from hydrogen, linear and branched -C5 alkyl, linear and branched -Cs haloalkyl, linear and branched C--C 5 alkoxy, halogen selected from chlorine, fluorine, iodine and bromine, C 5 -C 10 cycloalkyl, C 6 -Cj 5 cycloalkenyl, and C 6 -C 3 o aryl.
  • a multicycloalkyl moiety is a norbornyl ligand.
  • An example of a multicycloalkenyl moiety is a norbornenyl ligand.
  • aryl ligand groups include phenyl and naphthyl.
  • Structure I represents a cationic complex wherein R' is a cycloalkenyl ligand derived from 1,5-cyclooctadiene.
  • Structures II and III illustrate cationic complexes wherein R represents multicycloalkyl and multicycloalkenyl ligands, respectively.
  • the norbornenyl ligand is substituted with an alkenyl group.
  • R represents a hydrocarbyl ligand containing a terminal group that coordinates to the Group 10 metal.
  • the terminal coordination group containing hydrocarbyl ligand are represented by the formula -Cd ' H 2 d ' X ⁇ , wherein d' represents the number of carbon atoms in the hydrocarbyl backbone and is an integer from 3 to 10, and X ⁇ represents an alkenyl or heteroatom containing moiety that coordinates to the Group 10 metal center.
  • the ligand together with the Group 10 metal forms a metallacycle or heteroatom containing metallacycle.
  • Any of the hydrogen atoms on the hydrocarbyl backbone in the formulae above can be independently replaced by a . substituent selected from R 1' , R 2 , and R 3' which are defined below.
  • a cation complex of the terminal coordination group containing hydrocarbyl metallacycle embodiment is represented by Structure V shown below:
  • the substituted terminal group containing hydrocarbyl metallacycles can be represented by structure Va, below.
  • n represents an integer from 1 to 8 and R 1 ' , R 9' , and R V independently represent hydrogen, linear and branched C--C 5 alkyl, linear and branched Cj-Cs haloalkyl, linear or branched C 2 - C 5 alkenyl, linear and branched C 2 -C 5 haloalkenyl, substituted and unsubstituted
  • R , R , and R can be taken together along with the carbon atoms to which they are attached can form a substituted or unsubstituted aliphatic C 5 -C 2 o monocyclic or polycyclic ring system, a substituted or unsubstituted C 6 -C 10 aromatic ring system, a substituted and unsubstituted C 10 - C 0 fused aromatic ring system, and combinations thereof.
  • the rings described above can contain monosubstitution or multisubstitution where the substituents are independently selected from hydrogen, linear and branched CrC 5 alkyl, linear and branched C-- C 5 haloalkyl, linear and branched C 1 -C 5 alkoxy, and halogen selected from chlorine, fluorine, iodine and bromine.
  • substituents are independently selected from hydrogen, linear and branched CrC 5 alkyl, linear and branched C-- C 5 haloalkyl, linear and branched C 1 -C 5 alkoxy, and halogen selected from chlorine, fluorine, iodine and bromine.
  • Structure Va it should be noted that when n is 0, X is bonded to the carbon atom that contains the R substituent.
  • Representative terminal group containing hydrocarbyl metallacycle cation complexes wherein the substituents are taken together to represent aromatic and aliphatic ring systems are illustrated below under Structures Vb and Vc.
  • terminal group containing hydrocarbyl metallacycle cation complexes wherein any of R 1 to R 3 can be taken together to form aromatic ring systems are set forth in Structures Vd to Vg below.
  • n' is an integer from 0 to 5; and X, M, L', L", "a", n, x, y, R 1 and R 4 , are as previously defined, and R 5 and R 6 independently represent hydrogen, and linear and branched C--C-o alkyl, R 5 and R 6 together with the carbon atoms to which they are attached can form a saturated and unsaturated cyclic group containing 5 to 15 carbon atoms.
  • heteroatom containing aryl ligands under R are pyridinyl and quinolinyl ligands.
  • the allyl ligand in the cationic complex can be represented by the following structure:
  • R , R , and R each independently represent hydrogen, halogen, linear and branched C--C alkyl, C 5 -C 10 cycloalkyl, linear and branched -Cs alkenyl, C 6 -C 30 aryl, C 7 -C 30 aralkyl, each optionally substituted with a substituent selected from linear and branched -Cs alkyl, linear and branched C ⁇ -C 5 haloalkyl, halogen, and phenyl which can optionally be substituted with linear and branched -C 5 alkyl, linear and branched C1-C 5 haloalkyl, and halogen.
  • R , R , and R can be linked together with the carbon atoms to which they are attached to form a cyclic or multicyclic ring, each optionally substituted with linear or branched C J. -C 5 alkyl, linear or branched C--C 5 haloalkyl, and halogen.
  • allylic ligands suitable in the cationic complexes of the invention include but are not limited to allyl, 2-chloroallyl, crotyl, 1,1 -dimethyl allyl, 2-methylallyl, 1-phenylallyl, 2-phenylallyl, and ⁇ - pinenyl.
  • Representative neutral electron donor ligands under L' include amines, pyridines organophosphorus containing compounds and arsines and stibines, of the formula:
  • E is arsenic or antimony
  • R 7 is independently selected from hydrogen, linear and branched C--C 10 alkyl, C 5 -C 10 cycloalkyl, linear and branched Ci-C-n alkoxy, allyl, linear and branched C 2 -C 10 alkenyl, C 6 -C 12 aryl, C 6 -C 12 aryloxy, C 6 -C 12 arylsufides (e.g., PhS), C 7 -C 18 aralkyl, cyclic ethers and thioethers, tri(linear and branched C--C-o alkyl)silyl, tri(C 6 -C 12 aryl)silyl, tri(linear and branched C--C- .0 alkoxy)silyl, triaryloxysilyl, tri(linear and branched Ci-C-n alkyl)siloxy, and tri(C 6 -C 1 aryl)s
  • Representative alkyl groups include but are not limited to methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, neopentyl, hexyl, heptyl, octyl, nonyl, decyl, and dodecyl.
  • Representative cycloalkyl groups include but are not limited to cyclopentyl and cyclohexyl.
  • Representative alkoxy groups include but are not limited to methoxy, ethoxy, and isopropoxy.
  • Representative cyclic ether and cyclic thioether groups include but are not limited furyl and thienyl, respectively.
  • Representative aryl groups include but are not limited to phenyl, o-tolyl, and naphthyl.
  • Representative aralkyl groups include but are not limited to benzyl, and phenylethyl (i.e., -CH 2 CH 2 PH).
  • Representative silyl groups include but are not limited to triphenylsilyl, trimethylsilyl, and triethylsilyl. As in the general definition above each of the foregoing groups can be optionally substituted with linear or branched C ⁇ -C 5 alkyl, linear or branched C 1 -C 5 haloalkyl, and halogen.
  • Representative pyridines include lutidine (including 2,3-; 2,4-; 2,5-; 2,6-; 3,4-; and 3,5-substituted), picoline (including 2-,3-, or 4-substituted), 2,6-di-t- butylpyridine, and 2,4-di-t-butylpyridine.
  • Representative arsines include triphenylarsine, triethylarsine, and triethoxysilylarsine.
  • Representative stibines include triphenylstibine and trithiophenylstibine.
  • Suitable amine ligands can be selected from amines of the formula N(R 8 ) 3 , wherein R 8 independently represents hydrogen, linear and branched C-- C o alkyl, linear and branched C- . -C 20 haloalkyl, substituted and unsubstituted C 3 - C 20 cycloalkyl, substituted and unsubstituted C 6 -C 18 aryl, and substituted and unsubstituted C 7 -C 18 aralkyl.
  • the cycloalkyl, aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from hydrogen, linear and branched C !
  • amines include but are not limited to ethylamine, triethylamine, diisopropylamine, tributylamine, N,N-dimethylaniline, N,N-dimethyl-4-t-butylaniline, N,N-dimethyl-4-t-octylaniline, and N,N-dimethyl-4-hexadecylaniline.
  • the organophosphorus containing ligands include phosphines, phosphites, phosphonites, phosphinites and phosphorus containing compounds of the formula:
  • R 7' is as defined above and each R 7 ' substituent is independent of the other, g is 0, 1, 2, or 3, and h is 1, 2, or 3, with the proviso that when X' is a silicon atom, h is 3, when X is an oxygen atom h is 1, and when X' is a nitrogen atom, h is 2.
  • g 0 and X' is oxygen
  • any two or 3 of R 7' can be taken together with the oxygen atoms to which they are attached to form a cyclic moiety.
  • any two of R 7 can be taken together with the phosphorus atom to which they are attached to represent a phosphacycle of the formula:
  • the organophosphorus compounds can also include bidentate phosphine ligands of the formulae:
  • R is as previously defined and i is 0, 1, 2, or 3 are also contemplated herein.
  • Representative phosphine ligands include, but are not limited to trimethylphosphine, triethylphosphine, tri-n-propylphosphine, triisopropylphosphine, tri-n-butylphosphine, tri- ⁇ ec-butylphosphine, tri-z-butylphosphine, tri-t-butylphosphine, tricyclopentylphosphine, triallylphosphine, tricyclohexylphosphine, triphenylphosphine, trinaphthylphosphine, rri- -tolylphosphine, tri-o-tolylphosphine, tri- -tolylphosphine, tribenzylphosphine, tri(p-trifluoromethylphenyl) ⁇ hosphine, tris(trifluoromethyl)phosphine, tri( -fluorophenyl)phosphin
  • the phosphine ligands can also be selected from phosphine compounds that are water soluble thereby imparting the resulting catalysts with solubility in aqueous media.
  • Selected phosphines of this type include but are not limited to carboxylic substituted phosphines such as 4-(diphenylphosphine)benzoic acid, and 2-(diphenylphosphine)benzoic acid, sodium 2-(dicyclohexylphosphino)ethanesulfonate, 4,4'-(phenylphosphinidene)bis(benzene sulfonic acid) dipotassium salt, 3,3',3"- phosphinidynetris(benzene sulfonic acid) trisodium salt, 4-(dicyclohexylphosphino)- 1 , 1 -dimethylpiperidinium chloride, 4-(dicyclohexylphosphino)-l,l-di
  • phosphite ligands include but are not limited to trimethylphosphite, diethylphenylphosphite, triethylphosphite, tris(2,4-di-t-butylphenyl)phosphite, tri-n-propylphosphite, triisopropylphosphite, tri-n-butylphosphite, tri-sec-butylphosphite, triisobutylphosphite, tri-t- butylphosphite, dicyclohexylphosphite, tricyclohexylphosphite, triphenylphosphite, tri-p-tolylphosphite, tris(p-trifluoromethylphenyl)phosphite, benzyldiethylphosphite, and tribenzylphosphite.
  • phosphinite ligands include but are not limited to methyl diphenylphosphinite, ethyl diphenylphosphinite, isopropyl diphenylphosphinite, and phenyl diphenylphosphinite.
  • Examples of phosphonite ligands include but are not limited to diphenyl phenylphosphonite, dimethyl phenylphosphonite, diethyl methylphosphonite, diisopropyl phenylphosphonite, and diethyl phenylphosphonite.
  • Representative labile neutral electron donor ligands are reaction diluent, reaction monomers, DMF, DMSO, dienes including C 4 to o' aliphatic and C to C 10 cycloaliphatic dienes representative dienes include butadiene, 1,6-hexadiene, and cyclooctadiene (COD), water, chlorinated alkanes, alcohols, ethers, ketones, nitriles, arenes, phosphine oxides, organic carbonates and esters.
  • L labile neutral electron donor ligands
  • chlorinated alkanes include but are not limited to dichloromethane, 1,2-dichloroethane, and carbon tetrachloride.
  • Suitable alcohol ligands can be selected from alcohols of the formula R 9 OH, wherein R 9 ' represents linear and branched C ⁇ -C 20 alkyl, linear and branched C--C 20 haloalkyl, substituted and unsubstituted C 3 -C o cycloalkyl, substituted and unsubstituted C 6 -C[ 8 aryl, and substituted and unsubstituted C 6 - C 18 aralkyl.
  • the cycloalkyl, aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from hydrogen, linear and branched C 1 -C12 alkyl, linear and branched Cj . -C 5 haloalkyl, linear and branched Ci-Cs alkoxy, C 6 -C- 2 aryl, and halogen selected from chlorine, bromine, and fluorine.
  • Representative alcohols include but are not limited to methanol, ethanol, n-propanol, isopropanol, butanol, hexanol, t-butanol, neopentanol, phenol, 2,6-di-z-propylphenol, 4-t-octylphenol, 5-norbornene-2 -methanol, and dodecanol.
  • Suitable ether ligands and thioether ligands can be selected from ethers and thioethers of the formulae (R 10' -O-R 10' ) and (R 10' -S-R 10' ), respectively, wherein R 10 independently represents linear and branched C--C 10 alkyl radicals, linear and branched C 1 -C 20 haloalkyl, substituted and unsubstituted C 3 -C 2 o cycloalkyl, linear and branched Ci-C 2 o alkoxy substituted and unsubstituted C 6 - C 18 aryl, and substituted and unsubstituted C 6 -C 18 aralkyl.
  • the cycloalkyl, aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from hydrogen, linear and branched Ci-C ⁇ 2 alkyl, linear and branched Ci-C 5 haloalkyl, linear and branched Ci-Cs alkoxy, C 6 -C 12 aryl, and halogen selected from chlorine, bromine, and fluorine, taken together along with the oxygen or sulfur atom to which they are attached to form a cyclic ether or cyclic thioether.
  • ethers include but are not limited to dimethyl ether, dibutyl ether, methyl-t-butyl ether, di-z- propyl ether, diethyl ether, dioctyl ether, 1,4-dimethoxyethane, THF, 1,4-dioxane and tetrahydrothiophene.
  • Suitable ketone ligands are represented by ketones of the formula R 11 C(0)R 11 wherein R 11 ' independently represents hydrogen, linear and branched
  • C 1 -C 20 alkyl linear and branched C 1 -C 20 haloalkyl, substituted and unsubstituted C 3 -C 2 0 cycloalkyl, substituted and unsubstituted C 6 -C ⁇ 8 aryl, and substituted and unsubstituted C 6 -C lg aralkyl.
  • the cycloalkyl, aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from hydrogen, linear and branched C--C ⁇ 2 alkyl, linear and branched C1-C 5 haloalkyl, linear and branched -Cs alkoxy, C 6 -C ⁇ 2 aryl, and halogen selected from chlorine, bromine, and fluorine.
  • Representative ketones include but are not limited to acetone, methyl ethyl ketone, cyclohexanone, and benzophenone.
  • the nitrile ligands can be represented by the formula R 12 CN, wherein R 12 represents hydrogen, linear and branched C--C 20 alkyl, linear and branched C---
  • C 20 haloalkyl substituted and unsubstituted C 3 -C 20 cycloalkyl, substituted and unsubstituted C 6 -C ⁇ 8 aryl, and substituted and unsubstituted C 6 -C 18 aralkyl.
  • the cycloalkyl, aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from hydrogen, linear and branched C--C 12 alkyl, linear and branched C 1 -C 5 haloalkyl, linear and branched Ci-Cs alkoxy, C 6 -Ci2 aryl, and halogen selected from chlorine, bromine, and fluorine.
  • Representative nitriles include but are not limited to acetonitrile, propionitrile, benzonitrile, benzyl cyanide, and 5- norbornene-2-carbonitrile.
  • the arene ligands can be selected from substituted and unsubstituted C 6 -
  • C 12 arenes containing mono substitution or multisubstitution, wherein the substituents are independently selected from hydrogen, linear and branched C-- C 12 alkyl, linear and branched C 1 -C 5 haloalkyl, linear and branched C 1 -C 5 alkoxy, C 6 -Ci 2 aryl, and halogen selected from chlorine, bromine, and fluorine.
  • Representative arenes include but are not limited to toluene, benzene, 0-, m-, and
  • Suitable trialkyl and triaryl phosphine oxide ligands can be represented by phosphine oxides of the formula P(0)(R 13 ) 3 , wherein R 13' independently represents linear and branched C ⁇ -C 20 alkyl, linear and branched Ci-C 20 haloalkyl, substituted and unsubstituted C 3 -C 20 cycloalkyl, linear and branched C ⁇ -C 20 alkoxy, linear and branched C ⁇ -C 20 haloalkoxy, substituted and unsubstituted C 6 -Cis aryl, and substituted and unsubstituted C 6 -C 18 aralkyl.
  • R 13' independently represents linear and branched C ⁇ -C 20 alkyl, linear and branched Ci-C 20 haloalkyl, substituted and unsubstituted C 3 -C 20 cycloalkyl, linear and branched C ⁇ -C 20 alkoxy, linear and branched C ⁇
  • the cycloalkyl, aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from hydrogen, linear and branched C 1 -C- 2 alkyl, linear and branched C1-C 5 haloalkyl, linear and branched C1-C 5 alkoxy, C 6 -C- 2 aryl, and halogen selected from chlorine, bromine, and fluorine.
  • Representative phosphine oxides include but are not limited to triphenylphosphine oxide, tributylphosphine oxide, trioctylphosphine oxide, tributylphosphate, and tris(2-ethylhexyl)phosphate.
  • Representative carbonates include but are not limited to ethylene carbonate and propylene carbonate.
  • esters include but are not limited to ethyl acetate and z ' -amyl acetate.
  • the weakly coordinating counteranion complex, [WCA], of Formula I can be selected from borates and aluminates, boratobenzene anions, carborane and halocarborane anions.
  • borate and aluminate weakly coordinating counteranions are represented by Formulae II and III below:
  • M' is boron or aluminum and R 24 ', R 25 ' R 26 , and R 27 ' independently represent fluorine, linear and branched Ci-C 10 alkyl, linear and branched Ci-Cio alkoxy, linear and branched C 3 -C 5 haloalkenyl, linear and branched C 3 -Ci 2 trialkylsiloxy, C[ 8 -C 36 triarylsiloxy, substituted and unsubstituted C 6 -C 30 aryl, and substituted and unsubstituted C 6 -C 30 aryloxy groups wherein R 24 to R 27 can not all simultaneously represent alkoxy or aryloxy groups.
  • the aryl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from linear and branched C[-C 5 alkyl, linear and branched Ci-Cs haloalkyl, linear and branched C 1 -C 5 alkoxy, linear and branched C[-C 5 haloalkoxy, linear and branched C--C- 2 trialkylsilyl, C 6 -C 18 triarylsilyl, and halogen selected from chlorine, bromine, and fluorine, preferably fluorine.
  • Representative borate anions under Formula II include but are not limited to tetrakis(pentafluorophenyl)borate, tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, tetrakis(2-fluorophenyl)borate, tetrakis(3-fluorophenyl)borate, tetxakis(4-fluoropheny ⁇ )borate, tetrakis(3 ,5-difluorophenyl)borate, tetrakis(2,3,4,5-tetrafluorophenyl)borate, tetrakis(3,4,5,6-tetrafluorophenyl)borate, tetrakis(3,4,5-trifluorophenyl)borate, methyltris(perfluorophenyl)borate, ethyltris(perfluorophenyl)borate, phenyltris(perflu
  • Representative aluminate anions under Formula II include but are not limited to tetrakis(pentafluorophenyl)aluminate, tris(perfluorobiphenyl)fluoroaluminate, (octyloxy)tris(pentafluorophenyl)aluminate, tetrakis(3 ,5-bis(trifluorome yl)phenyl)aluminate, and memyl1xis(pentafluorophenyl)aluminate.
  • R 28' , R 29 ', R 30' , and R 31 ' independently represent linear and branched C--C 10 alkyl, linear and branched C-- Cio haloalkyl, C 2 -Cio haloalkenyl, substituted and unsubstituted C 6 -C 30 aryl, and substituted and unsubstituted C---C 3 Q aralkyl groups, subject to the proviso that at least three of R 28' to R 31 ' must contain a halogen containing substituent.
  • the aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from linear and branched C ⁇ -C 5 alkyl, linear and branched C r Cs haloalkyl, linear and branched C ⁇ -C 5 alkoxy, linear and branched C I -C-Q haloalkoxy, and halogen selected from chlorine, bromine, and fluorine, preferably fluorine.
  • the groups OR 28 and OR 29 can be taken together to form a chelating substituent represented by -O-R 32 -O-, wherein the oxygen atoms are bonded to M' and R 32 is a divalent radical selected from substituted and unsubstituted -C 30 aryl and substituted and unsubstituted C 7 - C 30 aralkyl.
  • R 32 is a divalent radical selected from substituted and unsubstituted -C 30 aryl and substituted and unsubstituted C 7 - C 30 aralkyl.
  • the oxygen atoms are bonded, either directly or through an alkyl group, to the aromatic ring in the ortho or meta position.
  • the aryl and aralkyl groups can be monosubstituted or multisubstituted, wherein the substituents are independently selected from linear and branched C 1 -C 5 alkyl, linear and branched C--Cs haloalkyl, linear and branched C Cs alkoxy, linear and branched C t -Cio haloalkoxy, and halogen selected from chlorine, bromine, and fluorine, preferably fluorine.
  • Representative structures of divalent R 32 radicals are illustrated below:
  • R 3j independently represents hydrogen, linear and branched C--C 5 alkyl, linear and branched C*-Cs haloalkyl, and halogen selected from chlorine, bromine, and fluorine, preferably fluorine;
  • R j4 can be a monosubstituent or taken up to four times about each aromatic ring depending on the available valence on each ring carbon atom and independently represents hydrogen, linear and branched C ⁇ -C 5 alkyl, linear and branched C1-C5 haloalkyl, linear and branched Ci-Cs alkoxy, linear and branched C--C ⁇ o haloalkoxy, and halogen selected from chlorine, bromine, and fluorine, preferably fluorine; and n" independently represents an integer from 0 to 6.
  • the oxygen atom in the formula -0-R 32 -O- is bonded directly to a carbon atom in the aromatic ring represented by R 32 .
  • the oxygen atom(s) i.e., when n" is 0, and the methylene or substituted methylene group(s), -(C(R 33 ) 2 ) n '-- are preferably located on the aromatic ring in the ortho or meta positions.
  • Representative chelating groups of the formula -O-R 32 -0- include but are not limited to are 2,3,4,5-tetrafluorobenzenediolate (-OC 6 F 0-), 2,3,4,5-tetrachlorobenzenediolate (-OC 6 Cl O-), and 2,3,4,5-tetrabromobenzenediolate (-OC 6 Br O-), and bis(l,l'-bitefrafluorophenyl-
  • Representative borate and aluminate anions under Formula III include but are not limited to [B(OC(CF 3 ) 3 ) 4 ]-, [B(OC(CF 3 ) 2 (CH 3 )) ] " , [B(OC(CF 3 ) 2 H) 4 ] ' , [B(0C(CF 3 XCH 3 )H) 4 ]-, [Al(OC(CF 3 ) 2 Ph) 4 ]-, [B(OCH 2 (CF 3 ) 2 ) 4 ]-, [Al(OC(CF 3 ) 2 C 6 H 4 CH 3 ) 4 ]-, [Al(OC(CF 3 ) 3 ) 4 ] " , [Al(OC(CF 3 )(CH 3 )H) 4 ]-,
  • R 34 ' is selected from fluorine, fluorinated hydrocarbyl, perfluorocarbyl, and fluorinated and perfluorinated ethers.
  • halohydrocarbyl means that at least one hydrogen atom on the hydrocarbyl radical, e.g., alkyl, alkenyl, alkynyl, cycloalkyl, aryl, and aralkyl groups, is replaced with a halogen atom selected from chlorine, bromine, iodine, and fluorine (e.g., haloalkyl, haloalkenyl, haloalkynyl, halocycloalkyl, haloaryl, and haloaralkyl).
  • fluorohydrocarbyl means that at least one hydrogen atom on the hydrocarbyl radical is replaced by fluorine.
  • the degree of halogenation can range from at least one hydrogen atom being replaced by a halogen atom (e.g., a monofluoromethyl group) to full halogenation (perhalogenation) wherein all hydrogen atoms on the hydrocarbyl group have been replaced by a halogen atom (e.g., perhalocarbyl such as trifluoromethyl (perfluoromethyl)).
  • the fluorinated hydrocarbyl and perfluorocarbyl radicals preferably contain 1 to 24 carbon atoms, more preferably, 1 to 12 carbon atoms and most preferably 6 carbon atoms and can be linear or branched, cyclic, or aromatic.
  • the fluorinated hydrocarbyl and perfluorocarbyl radicals include but are not limited to fluorinated and perfluorinated linear and branched C ⁇ -C 2 alkyl, fluorinated and perfluorinated C3-C2 cycloalkyl, fluorinated and perfluorinated C2-C2 4 alkenyl, fluorinated and perfluorinated C 3 -C2 cycloalkenyl, fluorinated and perfluorinated C 6 -C 2 aryl, and fluorinated and perfluorinated C 7 -C 2 aralkyl.
  • the fluorinated and perfluorocarbyl ether substituents are represented by the formulae -(CH 2 ) m OR 36 ', or -(CF 2 ) m OR 36 ' respectively, wherein R 36' is a fluorinated or perfluorocarbyl group as defined above, m is and integer of 0 to 5. It is to be noted that when m is 0 the oxygen atom in the ether moiety is directly bonded attached to the boron atom in the boratobenzene ring.
  • Preferred R 34 radicals include those that are electron withdrawing in nature such as, for example, fluorinated and perfluorinated hydrocarbyl radicals selected from trifluoromethyl, perfluoroethyl, perfluoropropyl, perfluoroisopropyl, pentafluorophenyl and bis(3,5-trifluoromethyl)phenyl.
  • R j5 independently represents hydrogen, halogen, perfluorocarbyl, and silylperfluorocarbyl radicals, wherein the perfluorocarbyl and silylperfluorocarbyl are as defined previously.
  • Preferred halogen groups are selected from chlorine, fluorine, with fluorine being especially preferred.
  • the radical(s) are preferably ortho or para (more preferably para) to the boron atom in the boratobenzene ring.
  • boratobenzene anions include but are not limited to [ 1 ,4-dihydro-4-methyl- 1 -(pentafluorophenyl)]-2 -borate, 4-( 1 , 1 -dimethyl)- 1 ,2- dihydro-l-(pentafluorophenyl)-2-borate, 1 -fluoro- l,2-dihydro-4-
  • the carborane and halocarborane anions useful as the weakly coordinating counteranion include but are not limited to CB 11 (CH 3 ) 12 " , CBnRu , l-CsHsCB ⁇ Hn-, l-PhaSiCBnHif, l-CF 3 CBnHn " , 12-BrCBnH ⁇ f,
  • the catalysts of Formula I can be prepared as a preformed single component catalyst in solvent or can be prepared in situ by admixing the catalyst precursor components in the desired monomer to be polymerized.
  • the single component catalyst of Formula I can be prepared by admixing the catalyst precursors in an appropriate solvent, allowing the reaction to proceed under appropriate temperature conditions, and isolating the catalyst product.
  • a Group 10 metal procatalyst is admixed with a Group 15 electron donor compound and/or a labile neutral electron donor compound, and a salt of a weakly coordinating anion in an appropriate solvent to yield the preformed catalyst complex set forth under Formula I above.
  • a Group 10 metal procatalyst containing a Group 15 electron donor ligand is admixed with a salt of a weakly coordinating anion in an appropriate solvent to yield the preformed catalyst complex.
  • the catalyst preparation reactions are carried out in solvents that are inert under the reaction conditions.
  • solvents suitable for the catalyst preparation reaction include but are not limited to alkane and cycloalkane solvents such as pentane, hexane, heptane, and cyclohexane; halogenated alkane solvents such as dichloromethane, chloroform, carbon tetrachloride, ethylchloride, 1,1 -dichloroethane, 1,2-dichloroethane, 1-chloropropane, 2- chloropropane, 1-chlorobutane, 2-chlorobutane, l-chloro-2-methylpropane, and
  • ethers such as THF and diethylether
  • aromatic solvents such as benzene, xylene, toluene, mesitylene, chlorobenzene, and o-dichlorobenzene
  • halocarbon solvents such as Freon 112; and mixtures thereof.
  • Preferred solvents include benzene, fiuorobenzene, -difluorobenzene, /j-difluorobenzene, pentafluorobenzene, hexafluorobenzene, ⁇ -dichlorobenzene, chlorobenzene, toluene, o-, m-, and j9-xylenes, mesitylene, cyclohexane, THF, and dichloromethane.
  • a suitable temperature range for carrying out the reaction is from about - 80°C to about 150°C, preferably from about -30°C to about 100°C, more preferably from about 0°C to about 65°C, and most preferably from about 10°C to about 40°C.
  • Pressure is not critical but may depend on the boiling point of the solvent employed, i.e. sufficient pressure to maintain the solvent in the liquid phase. Reaction times are not critical, and can range from several minutes to 48 hours.
  • the reactions are preferably carried out under inert atmosphere such as nitrogen or argon.
  • the reaction is carried out by dissolving the procatalyst in a suitable solvent and admixing the appropriate ligand(s) and the salt of the desired weakly coordinating anion with the dissolved procatalyst, and optionally heating the solution until the reaction is complete.
  • the preformed single component catalyst can be isolated or can be used directly by adding aliquots of the preformed catalyst in solution to the polymerization medium. Isolation of the product can be accomplished by standard procedures, such as evaporating the solvent, washing the solid with an appropriate solvent, and then recrystallizing the desired product.
  • the molar ratios of catalyst components employed in the preparation the preformed single component catalyst of the invention is based on the metal contained in the procatalyst component.
  • the molar ratio of procatalyst/Group 15 electron donor component/WCA salt is 1:1-10:1- 100, more preferably, 1:1-5:1-20, and most preferably, 1:1-2:1-5.
  • the procatalyst is ligated with a Group 15 electron donor ligand and/or a labile neutral electron donor ligand the molar ratio of procatalyst (based on the metal content) to WCA salt 1 :1-100, preferably, 1:1-
  • a Group 10 metal procatalyst dimer of the formula [R'MA'] 2 is admixed with a Group 15 electron donor compound, (L), and a salt of a suitable weakly coordinating anion in an appropriate solvent to produce the single component catalyst product as shown in equation (1) below.
  • Suitable procatalyst dimers of the formula [R'MA'] 2 include but are not limited to the following compositions (allyl)palladiumtrifluoroacetate dimer,
  • a ligated Group 10 metal procatalyst of the formula [R'M(L") y A'] is admixed with a Group 15 electron donor compound, (L), and a salt of a suitable weakly coordinating anion in an appropriate solvent to produce the single component catalyst product as shown in equation (2) below.
  • [R'M(L") y A'] includes but is not limited to (COD)palladium (methyl)chloride.
  • a Group 10 metal ligated procatalyst of the formula [R'M(L') X A'] containing the Group 15 electron donor ligand (L) is admixed with a salt of a suitable weakly coordinating anion in an appropriate solvent to produce the single component catalyst product as shown in equation (3) below.
  • Suitable procatalysts of the formula [R'M(L') X A'] include but are not limited to the following compositions:
  • procatalyst components suitable for use in the foregoing process include (Me 2 NCH 2 C 6 H 4 )Pd(0 3 SCF 3 )P(cyclohexyl) 3 (i.e., ortho-metallatedphenylmethlyenedimethylamino palladium tricyclohexylphosphine), (allyl)Pd(P-z-Pr 3 )C 6 F 5 , (allyl)Pd(PCy 3 )C 6 F 5 , (CH 3 )Pd(PMe 3 ) 2 Cl, (C 2 H 5 )Pd(PMe 3 ) 2 Cl (Ph)Pd(PMe 3 ) 2 Cl, (CH 3 )Pd(PMe 3 ) 2 Br,
  • the catalyst can be formed by protonating a procatalyst of the formula:
  • R' is a divalent hydrocarbyl ligand of the formula -(C d H 2 )- that is taken together with the Group 10 metal center M to form a metallacycle where d' represents the number of carbon atoms in the divalent hydrocarbyl backbone and is an integer from 3 to 10. Any of the hydrogen atoms on the divalent hydrocarbyl backbone can be replaced by linear and branched Ci-
  • the cycloalkyl and aryl moieties can optionally be substituted with a halogen substituent selected from bromine, chlorine, fluorine, and iodine, preferably fluorine.
  • a halogen substituent selected from bromine, chlorine, fluorine, and iodine, preferably fluorine.
  • any two or three of the alkyl substituents taken together with the hydrocarbyl backbone carbon atoms to which they are attached can form an aliphatic or aromatic ring system.
  • the rings can be monocyclic, polycyclic, or fused. Protonation occurs at one of the hydrocarbyl/metal center bond interfaces to yield a cation complex with a monovalent hydrocarbyl ligand coordinated to the metal center M.
  • a Group 10 metal ligated procatalyst of the formula [R'M(L') x (L") y A'] containing a Group 15 electron donor ligand (L) and a labile neutral electron donor ligand (L”) is admixed with a salt of a suitable weakly coordinating anion in an appropriate solvent to produce the single component catalyst product as shown in equation (5) below.
  • Suitable procatalysts of the formula [R'M(L l ) x (L") y A'] include but are not limited to the following compositions: [(allyl)Pd(NCCH 3 )(P-z-Pr 3 )][B(0 2 -3,4,5,6-Cl 4 C 6 ) 2 ], [(allyl)Pd(HOCH 3 )(P-z- Pr 3 )][B(0 2 -3,4,5,6-Cl 4 C 6 ) 2 ], [(allyl)Pd(HOCH 3 )(P-t-Pr 3 )][B(O2-3,4,5,6-Br 4 C6)2] 5
  • the catalyst of Formula I is generated by reacting a procatalyst of the formula [M(L') x (L") y (A') 2 ] with an organometallic compound of aluminum, lithium or magnesium, and a source of a weakly coordinating anion (WCA) or a strong Lewis Acid.
  • WCA weakly coordinating anion
  • the anionic hydrocarbyl ligand (R 1 ) on the group 10 metal center (M) is supplied via reaction with the organometallic compound to yield the active catalyst as shown below.
  • procatalysts suitable for use in this embodiment include : nickel acetylacetonate, nickel carboxylates, nickel (II) chloride, nickel (II) bromide, nickel ethylhexanoate, nickel (II) trifluoroacetate, nickel (II) hexafluoroacetylacetonate,
  • PdCl 2 P(cyclohexyl) 3 ) 2 , palladium (II) bromide, palladium (II) chloride, palladium (II) iodide, palladium (II) ethylhexanoate, - 3J —
  • Group 10 metal procatalyst is a nickel (II), platinum (II) or palladium (II) compound containing two anionic leaving groups (A'), which can be readily displaced by the weakly coordinating anion that is provided by the
  • WCA salt or strong Lewis acid described below can be replaced by hydrocarbyl groups originating from the organometallic compound.
  • the leaving groups can be the same or different.
  • the Group 10 metal procatalyst may or may not be ligated.
  • the Group 15 electron donor ligand can be added to the reaction medium as shown in the following reaction scheme.
  • R 41 represents monosubstituted and multisubstituted C 6 -C 30 aryl, wherein the substituents on the aryl group are independently selected from halogen, preferably fluorine, linear and branched C-- C 5 haloalkyl, preferably trifluoromethyl, and halogenated and perhalogenated phenyl, preferably pentafluorophenyl.
  • Such strong Lewis acids include: tris(pentaffuorophenyl)boron, tris(3,5-bis(trifluoromethyl)phenyl)boron, tris(2,2',2"-nonafluorobiphenyl)borane, and tris(pentafluorophenyl)aluminum.
  • the organometallic compound is a hydrocarbyl derivative of silicon, germanium, tin, lithium, magnesium or aluminum. Aluminum derivatives are preferred.
  • the organoaluminum component of the catalyst system is represented by the formula:
  • R' independently represents hydrogen, linear and branched Ci-C2 0 alkyl, Cs-do cycloalkyl, linear and branched C 2 -C 2 o alkenyl, C 6 -Ci 5 cycloalkenyl, allylic ligands or canonical forms thereof, C 6 -C 20 aryl, and C 7 -C 30 aralkyl
  • Q is a halide or pseudohalide selected from chlorine, fluorine, bromine, iodine, linear and unbranched Ci-C 2 o alkoxy, -C 24 .
  • aryloxy; x" is 0 to 2.5, preferably 0 to 2, most preferably 0 to 1.
  • Trialkylaluminum compounds are most preferred.
  • suitable organometallic compounds include: methyllithium, sec-butyllithium, r ⁇ -butyllithium, phenyllithium, butylethylmagnesium, di-ra-butylmagnesium, butyloctylmagnesium, trimethylaluminum, triethylaluminum, tri-zi-propylaluminum, tri-z ' -propylaluminum, tri-z ' -butylaluminum, tri-2-methylbutylaluminum, tri-octylaluminum, diethylaluminum chloride, ethylaluminum dichloride, di-z- butylaluminum chloride, diethylaluminum bromide, ethylaluminum sesquichloride, diethylaluminum ethoxide, diethylaluminum(z ' -butylphenoxide), and
  • Embodiments of the catalyst devoid of a hydrocarbyl containing ligand can be synthesized by reacting a procatalyst of the formula [M(AN) 2 ] with the desired ligands and WCA salt in accordance with the following reaction scheme:
  • procatalyst compounds include palladium (II) bis(acetylacetonate, palladium (acetate) 2 , Pd(N0 3 ) 2 , PdCl 2 , PdBr 2 , and Pdl2-
  • the foregoing schematic equations (1 to 8) have been presented for illustrative purposes only. While they have been written in balanced form, it 55 -
  • reaction components can be employed without deviating from the spirit of invention.
  • an excess of LN, LO, AN, or WCA salt containing components can be employed in the process of the invention so long as the process is not deleteriously affected.
  • 15 electron donor compound/source of a weakly coordinating anion/organometallic compound is 1 :1-10:1-100:2-200, more preferably 1 :1-5:1- 40:4-100, and most preferably 1:1-2:2-20:5-50.
  • the Group 10 metal ion source is an adduct containing a Group 15 electron donor compound, no additional Group 15 electron donor compound need be employed.
  • the most preferred molar ratio of the Group 10 metal/Group 15 electron donor compound/source of a weakly coordinating anion/organometallic compound is 1:0:2-20:5-50.
  • the catalysts of Formula I can be prepared as a preformed single component catalyst in solvent or they can be prepared in situ by admixing the precursor components (ligated or non-ligated Group 10 metal component with leaving group(s), ligand component(s), and WCA source or strong Lewis acid source) in the desired monomer, monomer mixtures, or solutions thereof. It is also possible to admix two or even three of the catalyst precursor components and then add the mixture to the monomer or monomer solution containing the remaining catalyst precursor component(s).
  • R', M, L', L", [WCA], b, d, x, and y are as defined above unless otherwise defined,
  • A' is an anionic leaving group which is defined below
  • [WCA] salt is a metal salt of the weakly coordinating anion [WCA]
  • Me, Et, Pr, Bu, Cy, and Ph as used here and throughout the specification refer to methyl, ethyl, propyl, butyl, cyclohexyl, and phenyl, respectively.
  • catalyst complex of Formula I can be formed in situ by combining any of the Group 10 metal procatalysts with the desired catalyst system components in monomer.
  • the procatalyst is mixed in monomer along with the WCA salt or the alternative activators such as strong Lewis acids or Brpnsted acids.
  • the WCA salt, strong Lewis acid or Brpnsted acid serves as the an activator for the procatalyst in the presence of monomer.
  • A' represents an anionic leaving group that can be readily displaced by the weakly coordinating anion that is provided by the WCA salt.
  • the leaving group forms a salt with the cation on the WCA salt.
  • Leaving group A' is selected from halogen (i.e., Br, Cl, I, and F), nitrate, triflate (trifluoromethanesulfonate), triflimide (bistrifluoromethanesulfonimide), trifluoroacetate, tosylate, AlBr 4 " , AIF4 " , AICI4 " , AlF 3 O 3 SCF 3 -, AsCl 6 ; SbCl 6 " , SbF 6 “ , PF 6 “ , BF “ ,ClO 4 “ , HSO4 " , carboxylates, acetates, acetylacetonates, carbonates, aluminates, " and borates.
  • halogen i.e., Br, Cl,
  • the leaving group can be a hydrocarbyl group or halogenated hydrocarbyl group when a Brpnsted acid based WCA salt is utilized as the activator.
  • the activator protonates the hydrocarbyl or halogenated hydrocarbyl forming a neutral moiety.
  • the leaving group moiety is preferably selected from the hydride, linear and branched Ci-Cs alkyl, linear and branched C 1 -C5 haloalkyl, C 5 -C 10 cycloalkyl, and C 6 -Ci 0 aryl.
  • the cycloalkyl and aryl moieties can optionally be substituted with a halogen substituent selected from bromine, chlorine, fluorine, and iodine, preferably fluorine.
  • A' is protonated to yield the neutral moiety A'H.
  • Methyl and pentafluorophenyl groups are representative examples of leaving groups under this embodiment. Halogen leaving groups include chlorine, iodine, bromine and fluorine.
  • the acetates include groups of the formula R 38 C(O)O "
  • the carbonates include groups of the formula R 38 OC(0)O "
  • R 38' represents linear and branched Ci-Cs alkyl, linear and branched Ci-Cs haloalkyl (preferably fluorine), linear or branched Ci-Cs alkenyl, C 6 -Ci2 aryl, optionally monosubstituted or independently multisubstituted with linear and branched -Cs alkyl, linear and branched Ci-Cs haloalkyl, and halogen (preferably fluorine).
  • the aluminate and borate leaving groups can be represented by the formulae M'(R 39' ) 4 , M'(GR 39 ') 4 , M'(-C ⁇ CPh) 4 , or a moiety represented by the following structures :
  • G is a sulfur or oxygen atom
  • Ph represents phenyl and substituted phenyl as defined below
  • R independently represents linear and branched C--C 10 alkyl, linear and branched C*-C ⁇ o chloro- or bromoalkyl, C 5 -C 10 cycloalkyl, substituted and unsubstituted aryl, preferably, phenyl and substituted phenyl, substituted and unsubstituted C -C2o aralkyl, preferably, phenylalkyl and substituted phenylalkyl.
  • aryl or phenyl groups can contain one or more of linear and branched C 1 -C 5 alkyl, linear and branched Ci-Cs haloalkyl, chlorine, and bromine substituents, and combinations thereof.
  • aluminate groups include but are not limited to tetraphenoxyaluminate, tetrakis(cyclohexanolato)aluminate, tetraethoxyaluminate, tetramethoxy aluminate, tetrakis(isopropoxy)aluminate, tetrakis(2-butanolato)aluminate, tetrapentyloxyaluminate, tetrakis(2-methyl-2- propanolato)aluminate, tetrakis(nonyloxy)aluminate, and bis(2-methoxyethanolate-O,0')bis(2-methoxyethanolate-0')aluminate, tetrakis(phenyl)aluminate, tetrakis( -tolyl)aluminate, tetrakis(/w-tolyl)aluminate, tetrakis(2,4-d
  • borate groups include tetraphenylborate, tetrakis(4-methylphenyl)borate, tetrakis(4-chlorophenyl)borate, tetrakis(4-bromophenyl)borate, tetrakis(2-bromo-4-chlorophenyl)borate, butyltriphenylborate, tetrakis(4-methoxyphenyl)borate, tetrakis(phenylethynyl)borate, bis(l,2-benzenediolato)borate, triphenyl(phenylethynyl)borate, bis(tetrafluorobenzenediolate)borate, bis(tetrachlorobenzenediolate)borate, bis(tetrabromobenzenediolate)borate, bis(l,l'-biphenyl-2,2'-diolato)borate, tetrakis(thio
  • A' can also be selected from highly fluorinated and perfluorinated alkylsulfonyl and arylsulfonyl containing anions of the formulae (R 4 °'S0 2 ) 2 CH “ , (R 40' SO 2 ) 3 C “ , and (R 40' SO 2 ) 2 N " , wherein R independently represents linear and branched Ci-C 2 o highly fluorinated and perfluorinated alkyl, Cs-C-s highly fluorinated and perfluorinated cycloalkyl, and highly fluorinated and perfluorinated C 6 -C 2 2 aryl.
  • the alkyl and cycloalkyl groups can contain a heteroatom in the chain of cyclic structure, respectively.
  • Preferred heteroatoms include divalent (non-peroxidic) oxygen (i.e., -0-), trivalent nitrogen, and hexavalent sulfur. Any two of R 40 ' can be taken together to form a ring.
  • the ring structures preferably contain 5 or 6 atoms, 1 or 2 of which can be heteroatoms.
  • the term highly fluorinated means that at least 50 percent of the hydrogen atoms bonded to the carbon atoms in the alkyl, cycloalkyl, and aryl moieties are replaced by fluorine atoms.
  • at least 2 out of every 3 hydrogen atoms on the alkyl, cycloalkyl, and aryl moieties under R 40' are replaced by fluorine.
  • at least 3 out of every 4 hydrogen atoms are replaced by fluorine, and most preferably all of the hydrogen atoms on the R 40 substituent are replaced by fluorine to give the perfluorinated moiety.
  • the aryl groups can contain linear and branched C ⁇ -C 10 highly fluorinated and perfluorinated alkyl groups, such as, for example, trifluoromethyl.
  • a portion or all of the remaining hydrogen atoms can be replaced with bromine and/or chlorine atoms.
  • Representative highly fluorinated and perfluorinated alkylsulfonyl and arylsulfonyl containing anions of the foregoing formulae include but are not limited to (Q-FsSO ⁇ , (C 4 F 9 SO 2 ) 2 N-, (CF 3 SO 2 ) 2 N-, (CF 3 SO 2 )(C 4 F 9 SO 2 )N-,
  • the salt of the weakly coordinating anion employed in the process of the present invention can be represented by the formula [C(L") z ] b [WCA] d , wherein C represents a proton (H + ), an alkaline earth metal cation, a transition metal cation or an organic group containing cation, L" and WCA, are as defined above, z is an integer from 0 to 8, and bO and dO represent the number of times the cation complex and weakly coordinating counteranion complex (WCA), respectively, are taken to balance the electronic charge on the overall salt complex.
  • the alkali metal cations include Group 1 metals selected from lithium, sodium, potassium, rubidium, and cesium. The preferred Group 1 metal cations are lithium, sodium and potassium.
  • the alkali earth metal cations include Group 2 metals selected from beryllium, magnesium, calcium, strontium, and barium.
  • the preferred Group 2 metal cations are magnesium, calcium, strontium, and barium.
  • the transition metal cation is selected from zinc, silver, and thallium.
  • the organic group cation is selected from ammonium, phosphonium, carbonium and silylium cations, i.e., [NHR i' 3 ] + , [NR 41' 4 ] + , [PHR 41 3 ], [PR 41 ' ], [R 41 C] + , and [R 41' 3 Si] + , where R 41' independently represents a hydrocarbyl, silylhydrocarbyl, or perfluorocarbyl group, each containing 1 to 24 carbon atoms, more preferably, from 1 to 12 carbons arranged in a linear, branched, or ring structure.
  • perfluorocarbyl is meant that all carbon bonded hydrogen atoms are replaced by a fluorine atom.
  • hydrocarbyl groups include but are not limited to linear and branched C1-C20 alkyl, C 3 -C 20 cycloalkyl, linear and branched C 2 to C 20 alkenyl, C 3 -C 20 cycloalkenyl, C -C 24 aryl, and C -C 2 aralkyl, and organometallic cations.
  • the organic cations are selected from trityl, trimethylsilylium, triethylsilylium, tris(trimethylsilyl)silylium, tribenzylsilylium, triphenylsilylium, tricyclohexylsilylium, dimethyloctadecylsilylium, and triphenylcarbenium (i.e., trityl).
  • ferrocenium cations such as [(C 5 Hs) 2 Fe] + and [(C 5 (CH 3 )) 2 Fe] + are also useful as the cation in the WCA salts of the invention.
  • WCA salts having a weakly coordinating anion described under Formula II include but are not limited to lithium tetrakis(2-fluorophenyl)borate, sodium tetrakis(2-fluorophenyl)borate, silver tefrakis(2-fluorophenyI)borate, thallium tetrakis(2-fluorophenyl)borate, lithium tetrakis(3 -fluorophenyl)borate, sodium tetrakis(3 -fluorophenyl)borate, silver tetrakis(3 -fluorophenyl)borate, thallium tetrakis(3-fluorophenyl)borate,
  • WCA salts having a weakly coordinating anion described under Formula III include but are not limited to LiB(OC(CF 3 ) 3 ) 4 , LiB(OC(CF 3 ) 2 (CH 3 )) 4 , LiB(OC(CF 3 ) 2 H) 4 , LiB(OC(CF 3 )(CH 3 )H) 4 , T1B(0C(CF 3 ) 3 ) 4 , T1B(0C(CF 3 ) 2 H) 4 , TlB(OC(CF 3 )(CH 3 )H) 4 , TlB(OC(CF 3 ) 2 (CH 3 )) 4, (Ph 3 C)B(OC(CF 3 ) 3 ) 4 , (Ph 3 C)B(OC(CF 3 ) 2 (CH 3 )) 4 , (Ph 3 C)B(OC(CF 3 ) 2 H) 4 ,
  • Ph 3 CAl(OC(CF 3 )2C 6 Fs) 4 examples include but are not limited to [1,4-dihydro- 4-methyl- 1 -(pentafluorophenyl)] -2-borinyl lithium, [ 1 ,4-dihydro-4-methyl- 1 - (pentafluorophenyl)] -2-borinyl triphenylmethylium, 4-( 1 , 1 -dimethyl)- 1 ,2-dihydro- l-(pentafluorophenyl)-2-borinyl lithium, 4-( 1,1 -dimethyl)- 1,2-dihydro-l- (jpentafluorophenyl)-2-borinyl triphenylmethylium, 1 -fluoro- l,2-dihydro-4-
  • WCA carborane and halocarborane salts include but are not limited to silver dodecahydro-1-carbadodecaborate, LiCBn(CH 3 ) ⁇ 2 , LiCB ⁇ H 12 , (Me 3 NH)[CBuH ⁇ 2 ], (Me 4 N)[l-C 2 H 5 CBi 1 Hii], (Me 4 N)[l-Ph 3 SiCB 1 ⁇ Hii], (Me 4 N)[l-CF 3 CBiiH 1 I ], Cs[12-BrCB u H u ], Ag[12-BrCBnHu], Cs[7,12- Br 2 CB u H ⁇ o], Cs[12-ClCB u Hii], Cs[7,12-Cl 2 CBnH 10 ], Cs[l-H-CB u Fii], Cs[l- CH 3 -CB 11 F 11 ], (z-Pr 3 )Si[l
  • the catalysts of the present invention are suitable for the preparation of a wide range of polymers comprising cyclic repeating units.
  • the cyclic polymers are prepared by the addition polymerization of a polycycloolefin monomer(s) in the presence of a catalytic amount of a catalyst of Formula I or the procatalyst components described above.
  • the monomer(s) can be polymerized via solution or mass polymerization techniques.
  • polycycloolefin polycyclic
  • nonorborne ⁇ e-type monomer are used interchangeably and mean that the monomer contains at least one norbornene moiety as shown below:
  • the simplest polycyclic monomer of the invention is the bicyclic monomer, bicyclo[2.2.1]hept-2-ene, commonly referred to as norbornene.
  • norbornene-type monomer is meant to include norbornene, substituted norbornene(s), and any substituted and unsubstituted higher cyclic derivatives thereof so long as the monomer contains at least one norbornene-type or substituted norbornene-type moiety.
  • Preferred substituted norbornene-type monomers and higher cyclic derivatives thereof contain a pendant hydrocarbyl substituent(s) or a pendant functional substituent(s) containing an oxygen atom.
  • the preferred norbornene-type or polycycloolefin monomers are represented by the structure below:
  • R 1 to R 4 independently represents a hydrocarbyl or functional substituent
  • m is an integer from 0 to 5
  • R 1 to R 4 independently represent hydrocarbyl, halogenated hydrocarbyl and perhalogenated hydrocarbyl groups selected from hydrogen, linear and branched Ci-Cio alkyl, linear and branched, C 2 -Cio alkenyl, linear and branched C 2 -Cio alkynyl, C4-C12 cycloalkyl, C 4 -C 12 cycloalkenyl, C 6 -C ⁇ 2 aryl, and C -C 24 aralkyl, R 1 and R 2 or R 3 and R 4 can be taken together to represent a Ci-Cio alkylidenyl group.
  • Representative alkyl groups include but are not limited to methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, neopentyl, hexyl, heptyl, octyl, nonyl, and decyl.
  • Representative alkenyl groups include but are not limited to vinyl, allyl, butenyl, and cyclohexenyl.
  • Representative alkynyl groups include but are not limited to ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, and 2-butynyl.
  • Representative cycloalkyl groups include but are not limited to cyclopentyl, cyclohexyl, and cyclooctyl substituents.
  • Representative aryl groups include but are not limited to phenyl, naphthyl, and anthracenyl.
  • Representative aralkyl groups include but are not limited to benzyl, and phenethyl.
  • Representative alkylidenyl groups include methylidenyl, and ethylidenyl, groups.
  • the preferred perhalohydrocarbyl groups include perhalogenated phenyl and alkyl groups.
  • the halogenated alkyl groups useful in the invention are linear or branched and have the formula C z X" 2z+1 wherein X" is a halogen as set forth above and z is selected from an integer of 1 to 10.
  • X" is fluorine.
  • Preferred perfluorinated substituents include perfluorophenyl, perfluoromethyl, perfluoroethyl, perfluoropropyl, perfluorobutyl, and perfluorohexyl.
  • the cycloalkyl, aryl, and aralkyl groups of the invention can be further substituted with linear and branched C ⁇ _C 5 alkyl and haloalkyl groups, aryl groups and cycloalkyl groups.
  • R 1 to R 4 independently represent a radical selected from -(CH 2 ) n C(0)NH 2 , -(CH 2 ) consentC(O)Cl, -(CH 2 ) n C(0)OR 5 , -(CH 2 ) n -OR 5 , -(CH 2 ) hinder-OC(0)R 5 , -(CH 2 ) procur-C(O)R 5 ' -(CH 2 ) n -OC(0)OR 5 , -(CH 2 ) precedeSiR 5 , -(CH 2 ) n Si(OR 5 ) 3 ,
  • n independently represents an integer from 0 to 10 and R 3 independently represents hydrogen, linear and branched C ⁇ .C 10 alkyl, linear and branched, C 2 - C-o alkenyl, linear and branched C2-Cio alkynyl, C 5 -Ci 2 cycloalkyl, C 6 -C 14 aryl, and C 7 -C 24 aralkyl.
  • Representative hydrocarbyl groups set forth under the definition of R 5 are the same as those identified above under the definition of R 1 to R 4 . As set forth above under R 1 to R 4 the hydrocarbyl groups defined under R 5 can be halogenated and perhalogenated.
  • the R 6 radical represents an acid labile moiety selected from -C(CH 3 ) 3 , -Si(CH 3 ) 3 , -CH(R 7 )OCH 2 CH 3 , - CH(R 7 )OC(CH 3 ) 3 or the following cyclic groups:
  • R represents hydrogen or a linear or branched (Ci - C 5 ) alkyl group.
  • the alkyl groups include methyl, ethyl, propyl, z ' -propyl, butyl, z ' -butyl, t-butyl, pentyl, t-pentyl and neopentyl.
  • the single bond line projecting from the cyclic groups indicates the position where the cyclic protecting group is bonded to the acid substituent.
  • R 6 radicals include 1 -methyl- 1 -cyclohexyl, isobornyl, 2-methyl-2-isobornyl, 2-methyl-2- adamantyl, tetrahydrofuranyl, tetrahydropyranoyl, 3-oxocyclohexanonyl, mevalonic lactonyl, 1-ethoxyethyl, and 1-t-butoxy ethyl.
  • the R 6 radical can also represent dicyclopropylmethyl (Dcpm), and dimethylcyclopropylmethyl (Dmcp) groups which are represented by the following structures:
  • R 1 and R 4 together with the two ring carbon atoms to which they are attached can represent a substituted or unsubstituted cycloaliphatic group containing 4 to 30 ring carbon atoms or a substituted or unsubstituted aryl group containing 6 to 18 ring carbon atoms or combinations thereof.
  • the cycloaliphatic group can be monocyclic or polycyclic. When unsaturated the cyclic group can contain monounsaturation or multiunsaturation, with monounsaturated cyclic groups being preferred.
  • the rings When substituted, the rings contain monosubstitution or multisubstitution wherein the substituents are independently selected from hydrogen, linear and branched Ci-Cs alkyl, linear and branched Ci-Cs haloalkyl, linear and branched Ci-Cs alkoxy, halogen, or combinations thereof.
  • R 1 and R 4 can be taken together to form the divalent bridging group, -C(O)-Q-(O)C-, which when taken together with the two ring carbon atoms to which they are attached form a pentacyclic ring, wherein Q represents an oxygen atom or the group N(R ), and R is selected from hydrogen, halogen, linear and branched Ci-Cio alkyl, and C 6 -C 18 aryl.
  • a representative structure is shown in below.
  • m is an integer from 0 to 5.
  • Deuterium enriched norbornene-type monomers wherein at least one of the hydrogen atoms on the norbornene-type moiety and/or one at least one of the hydrogen atoms on a pendant hydrocarbyl substituent described under R 1 to R 4 have been replaced by a deuterium atom are contemplated within the scope of the present invention.
  • Preferred deuterated monomers are represented by the structure below:
  • R is deuterium
  • "i” is an integer ranging from 0 to 6, with the proviso that when "i" is 0, at least one of R and R must be present
  • R and R independently represent a hydrocarbyl or functional substituent as defined above
  • R 1D and R 2D may or may not be present and independently represent a deuterium atom or a deuterium enriched hydrocarbyl group containing at least one deuterium atom.
  • the deuterated hydrocarbyl group is selected from linear and branched Ci- o alkyl wherein at least 40 percent, preferably at least 50 percent and more preferably at least 60 percent of the hydrogen atoms on the carbon backbone are replaced by deuterium.
  • Preferred monomers include the various alkyl norbornenes wherein the alkyl group has from 1 to 20 carbon atoms, desirable from about 1 to about 10 carbon atoms, with methyl, butyl, hexyl, or decyl being preferred.
  • blends of monomers are often utilized and another preferred list of monomers include the various trialkoxy silyl norbornenes having the formula:
  • Crosslinked polymers can be prepared by copolymerizing the norbornene- type monomer(s) set forth under Structure VII above with a multifunctional norbornene-type or multifunctional polycycloolefin crosslinking monomer(s).
  • multifunctional norbornene-type or multifunctional polycycloolefin crosslinking monomer is meant that the crosslinking monomer contains at least two norbornene-type moieties, each functionality being addition polymerizable in the presence of the catalyst system of the present invention.
  • the crosslinkable monomers include fused multicyclic ring systems and linked multicyclic ring systems. Examples of fused crosslinkers are illustrated in Structures Vllb to Vllg below. For brevity, norbomadiene is included as a fused multicyclic crosslmker.
  • n independently is an integer from 0 to 5.
  • a linked multicyclic crosslinker is illustrated generically in Structure VIII below.
  • R 9 is a divalent radical selected from divalent hydrocarbyl radicals and divalent ether radicals.
  • divalent is meant that a free valence at each terminal end of the radical is attached to a norbornene-type moiety.
  • Preferred divalent hydrocarbyl radicals are alkylene radicals and divalent aromatic radicals.
  • the alkylene radicals are represented by the formula -(C d H2 d )- where d represents the number of carbon atoms in the alkylene chain and is an integer from 1 to 10.
  • the alkylene radicals are preferably selected from linear and branched (Ci-C 10 ) alkylene such as methylene, ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene, and decylene.
  • branched alkylene radicals it is to be understood that a hydrogen atom in the alkylene backbone is replaced with a linear or branched (C- to C 5 ) alkyl group.
  • the divalent aromatic radicals are selected from divalent phenyl, and divalent naphthyl radicals.
  • the divalent ether radicals are represented by the group -R 10 -O-R 10 -, wherein R 10 independently is the same as R 9 .
  • Examples of specific linked multicyclic crosslinkers are represented as in Structures Villa to VHIe as follows.
  • R 1 to R independently represent hydrogen, hydrocarbyl, and/or a functional group as previously described.
  • adducts can be prepared by the thermal pyrolysis of dicyclopentadiene (DCPD) in the presence of a suitable dienophile.
  • DCPD dicyclopentadiene
  • the reaction proceeds by the initial pyrolysis of DCPD to CPD followed by the Diels-Alder addition of CPD and the dienophile to give the adducts shown below:
  • n represents the number of cyclic units in the monomer and R to R independently represent hydrogen, hydrocarbyl, and/or a functional group as previously defined.
  • Norbomadiene and higher Diels-Alder adducts thereof similarly can be prepared by the thermal reaction of CPD and DCPD in the presence of an acetylenic reactant as shown below.
  • n, R and R are as defined above.
  • Deuterium enriched norbornene-type monomers can be prepared by heating DCPD in the presence of D 2 O and a base such as NaOH to yield deuterated CPD which in turn can be reacted with a dienophile (Eq. 1) or a deuterated dienophile (Eq. 2) to give the respective deuterated norbornene containing a pendant deuterated hydrocarbyl substituent or a pendant hydrocarbyl substituent.
  • non-deuterated CPD can be reacted with a deuterium enriched dienophile to yield norbornene containing a deuterium enriched hydrocarbyl pendant group (Eq. 3).
  • R 1 to R 4 , R 1D and R 2D are as previously defined, and i' is an integer ranging from 1 to 6.
  • polymerizable norbornene-type monomers include but are not limited to norbornene (bicyclo[2.2.1]hept-2-ene), 5-ethylidenenorbornene, dicyclopentadiene, tricyclo[5.2.1.0 2 - 6 ]deca-8-ene, 5-methoxycarbonylbicyclo [2.2.1 ]hept-2-ene, 5-methylbicyclo[2.2.1]hept-2-ene-5-carboxylic acid, 5-methylbicyclo[2.2.1]hept-2-ene, 5-ethylbicyclo[2.2.1]hept-2-ene, 5-ethoxycarbonylbicyclo[2.2.1]hept-2-ene, 5-n-propoxycarbonylbicyclo[2.2.1]hept-2-ene, 5-z ' -propoxycarbonylbicyclo[2.2.1 ]hept-2-ene, 5- «-butoxycarbonylbicyclo[2.2.1]hept-2-ene, 5-(2-methylpropy
  • the polymer in another embodiment of the invention can be crosslinked during a post polymerization curing step (latent crosslinking).
  • a norbornene-type monomer containing a pendant post crosslinkable functional group is copolymerized into the polycyclic backbone whereupon the functional group is subsequently crosslinked via well known techniques.
  • post crosslinkable functional group is meant that the functional group is inert to the initial polymerization reaction but is receptive to subsequent chemical reactions to effect the crosslinking of adjacent polymer chains.
  • Suitable post crosslinkable monomers are set forth under Structure VII wherein at least one of R 1 to R 4 is selected from linear and branched, C 2 -C 10 alkenyl, C 4 -C 10 cycloalkenyl, - (CH 2 ) n Si(OR :) ) 3 , wherein n and R 3 are as defined above, R 1 and R 2 or R 3 and R 4 can be taken together to represent a Ci-Cio alkylidenyl radical, fused cyclic groups wherein R 1 and R 4 taken together with the two ring carbon atoms to which they are attached form an unsaturated C to C 8 ring.
  • Preferred post crosslinkable alkenyl functional groups include vinyl, butenyl, and cyclohexyl.
  • Preferred alkylidenyl groups include methylidenyl and ethylidenyl substituents.
  • Preferred alkoxysilyl groups include trimethoxysilyl and triethoxysilyl moieties.
  • Preferred crosslinkers containing fused multicyclic ring systems include dicyclopentadiene (DCPD) and unsymmetrical trimer of cyclopentadiene (CPD) .
  • the latent crosslinkable pendant groups can be reacted via a variety chemistries known to initiate the reaction of the various functional groups.
  • the alkenyl, cycloalkenyl, and alkylidenyl groups can be crosslinked via a free radical mechanism.
  • the alkoxysilyl groups can be crosslinked via a cationic reaction mechanism.
  • Representative monomers that contain post crosslinkable functional groups are represented below.
  • the crosslinking reaction step can be induced by a free radical initiator.
  • Suitable initiators are those that can be activated thermally or photochemically. The initiator is added to the reaction medium and the polymerization of the monomer mixture is allowed to proceed to completion.
  • a key consideration, however, is that the radical generating compound employed be stable (does not decompose) at the polymerization temperature of the monomeric reaction medium.
  • latent crosslinking is induced by exposing the polymer medium to temperatures above the decomposition temperature of the free radical generating compound.
  • latent crosslinking is induced by exposing the polymer medium to a radiation source such as e-beam and UV radiation.
  • Suitable free radical generator compounds include the organic peroxides and aliphatic azo compounds.
  • the aliphatic azo compounds are suitable initiators for the thermal and photochemical activated crosslinking embodiments of the invention, while the organic peroxides are suitable for use in as thermally activated initiators only.
  • the amount of crosslinking agent employed ranges from about .005 part by weight to about 5.0 parts by weight based on 100 parts by weight of monomer in the reaction medium.
  • Suitable organic peroxide include but are not limited to dibenzoyl peroxide, di(2,4-dichlorobenzoyl) peroxide, diacetyl peroxide, diisobutyryl peroxide, dilauroyl peroxide, t-butylperbenzoate, t-butylperacetate, 2,5-di(benzoylperoxy)-l,2-dimethylhexane, di-t-butyl diperoxyazelate, t-butyl peroxy-2-ethylhexanoate, t-amyl peroctoate, 2,5-di(2-ethylhexanoylperoxy)-2,5- dimethylhexane, t-butylperoxyneodecanoate, ethyl 3,3-di(t-butylperoxy)butyrate,
  • 2,2-di(t-butylperoxy)butane 1 , 1 -di(t-butylperoxy)cyclohexane, 1 , 1 -di(t-butylperoxy)-3 ,3 ,5-trimethylcyclohexane, 2,5-di(t-butylperoxy)-2,5- dimethylhex-3-yne, di-t-butyl peroxide, 2,5-di(t-butylperoxy)-2,5- dimethylhexane, dicumyl peroxide, n-propyl peroxydicarbonate, z-propyl peroxydicarbonate, cyclohexyl peroxydicarbonate, and acetyl peroxydicarbonate.
  • Suitable azo compounds include but are not limited to 2,2'-azobis[2,4- dimethyljpentane, 2-(t-butylazo)-4-methoxy-2,4-dimethylpentanenitrile, 2,2 ' -azobis(z-butyronitrile), 2-(t-butylazo)-2,4-dimethylpentanenitrile, 2-(t- butylazo)z-butyroni ⁇ rile, 2-(t-butylazo)-2-methylbutanenitrile, 1 , 1 -azobis- cyclohexanecarbonitrile, l-(t-amylazo)cyclohexanecarbonitrile, and l-(t-butylazo)cyclohexanecarbonitrile.
  • 2,2'-azobis[2,4- dimethyljpentane 2-(t-butylazo)-4-methoxy-2,4-dimethylpentanenitrile
  • the decomposition temperatures of the foregoing free radical generator compounds are well known in the art and can be selected on the basis of the polymerization temperatures employed in initial reaction. In other words the initiator compound must be stable at the polymerization temperatures so it is available for the post polymerization crosslinking reaction. As discussed above latent crosslinking is can be effected by thermal or photochemical means.
  • monomers containing trialkoxysilyl groups can be crosslinked by latent crosslinking in the presence of a cationic initiator agent.
  • a polymerization stable cationic initiator can be can be thermally activated to induce the latent crosslinking of the silyl groups.
  • Suitable cationic crosslinking initiators include, for example, dibutyltin diluarate, dimethyltin diluarate, and dioctyltin diluarate .
  • the amount of multifunctional norbornene-type crosslinkable monomers and post crosslinkable monomers that are optionally present in the reaction mixture can range from about 0.1 mole percent to about 50 mole percent based on the total monomer in the monomer mixture to be reacted.
  • the amount of crosslmker ranges from about 1 mole percent to about 25 mole percent of the total monomer mixture and most preferably from about 1 mole percent to about 10 mole percent.
  • the monomers of the invention are polymerized in solution or in mass.
  • the catalyst is added to the reaction medium containing the desired monomer(s) as a preformed single component catalyst or the catalyst can be formed in situ by admixing the procatalyst component, the Group 15 electron donor component, and the WCA salt activator component in the reaction medium.
  • the procatalyst is ligated with the Group 15 electron donor component, it is not necessary to employ the Group 15 electron donor as a separate component.
  • the ligated procatalyst component e.g., containing desired ligand group(s)
  • the WCA salt activator component is admixed with the WCA salt activator component in the reaction medium.
  • a procatalyst component with or without ligands is admixed with a desired ligand containing component(s) and the WCA salt activator component in the reaction medium.
  • the procatalyst components are generically exemplified in the preformed catalyst preparation equations (1) to (4) set forth above.
  • the preferred molar ratio of procatalyst (based on the Group 10 metal) : Group 15 electron donor component : WCA salt is 1:1-10:1-100, more preferably, 1 :1-5:1-20, and most preferably, 1:1-2:1-5.
  • the order of addition of the various catalyst components to the reaction medium is not important.
  • the polymers prepared by the process of the invention are addition polymers of polycycloolefinic repeating units linked tlirough 2,3-enchainment.
  • the repeating units are polymerized from a polycycloolefin monomer or combination of polycycloolefin monomers that contain at least one norbornene- type moiety as described herein.
  • the polymerization reaction can be carried out by adding a solution of the preformed catalyst or individual catalyst components to a solution of the cycloolefin monomer or mixtures of monomers to be polymerized.
  • the amount of monomer in solvent preferably ranges from 10 to 50 weight percent, and more preferably 20 to 30 weight percent.
  • the polymerization reaction temperatures can range from about 0°C to about 150°C, preferably from about 10°C to about 100°C, and more preferably from about 20°C to about 80°C.
  • solvents for the polymerization reaction include but are not limited to alkane and cycloakane solvents such as pentane, hexane, heptane, and cyclohexane; halogenated alkane solvents such as dichloromethane, chloroform, carbon tetrachloride, ethyl chloride, 1,1 -dichloroethane, 1,2 -dichloroethane, 1- chloropropane, 2-chloropropane, 1-chlorobutane, 2-chlorobutane, l-chloro-2-methylpropane, and 1-chloropentane; aromatic solvents such as benzene, xylene, toluene, mesitylene, chlorobenzene, and o
  • Freon ® 112 halocarbon solvent water; or mixtures thereof.
  • Preferred solvents include cyclohexane, toluene, mesitylene, dichloromethane, 1,2-dichloroethane, and water.
  • the catalysts of the invention are highly active in the polymerization of cycloolefins.
  • the catalysts exhibit activities at monomer to procatalyst or catalyst metal molar ratios of over 100,000:1.
  • Preferred monomer to procatalyst or catalyst ratios range from about 100,500:1 to about 1,000,000:1, more preferably from about 110,000:1 to about 500,000:1 and most preferably from about 120,000:1 to about 250,000:1 While these catalysts have been found to be active at monomer to catalyst metal molar ratios of over 100,000:1, it is within the scope of this invention to utilize monomer to catalyst metal molar ratios of less than 100,000:1 depending on the use desired for the polymer.
  • the Group 15 electron donor ligand or component be chosen from the water soluble phosphines set forth above.
  • the polymerization reaction can be conducted in suspension or emulsion.
  • the monomers are suspended in an aqueous medium containing a suspension agent selected from one or more water soluble substances such as, for example, polyvinyl alcohol, cellulose ether, partially hydrolyzed polyvinyl acetate, or gelatin and then carrying out the reaction in the presence of the catalyst system of the invention.
  • the emulsion polymerization can in general be carried out by emulsifying the monomers in water or a mixed solvent of water and a water-miscible organic solvent (such as methanol, or ethanol), preferably in the presence of at least one emulsifying agent and then carrying out the emulsion polymerization in the presence of the catalyst of the invention.
  • Emulsifying agents include, for example, mixed acid soaps containing fatty and rosin acids, alkyl sulfonate soaps and soaps of oligomeric naphthalene sulfonates.
  • mass polymerization refers to a polymerization reaction which is generally carried out in the substantial absence of a solvent. In some cases, however, a small proportion of solvent is present in the reaction medium. Small amounts of solvent can be conveyed to the reaction medium via the introduction of the catalyst system components which are in some cases dissolved in solvent. Solvents also can be employed in the reaction medium to reduce the viscosity of the polymer at the termination of the polymerization reaction to facilitate the subsequent use and processing of the polymer.
  • the amount of solvent that can be present in the reaction medium ranges from 0 to about 20 percent, preferably from 0 to about 10 percent and, more preferably from 0 to about 1 percent, based on the weight of the monomer(s) present in the reaction mixture.
  • Preferred solvents are those that are utilized in dissolving the catalyst system components.
  • solvents include but are not limited to alkane and cycloalkane solvents such as pentane, hexane, heptane, and cyclohexane; halogenated alkane solvents such as dichloromethane, chloroform, carbon tetrachloride, ethylchloride, 1,1- dichloroethane, 1 ,2-dichloroethane, 1-chloropropane, 2-chloropropane, 1- chlorobutane, 2-chlorobutane, l-chloro-2-methylpropane, and 1-chloropentane; esters such as ethylacetate, z ' -amylacetate; ethers such as THF and diethylether; aromatic solvents such as benzene, xylene, toluene, mesitylene, chlorobenzene, and ⁇ -dichlorobenzene; and halocarbon solvents such as Freon
  • Preferred solvents include benzene, fluorobenzene, o-difluorobenzene, ?-difluorobenzene, pentafluorobenzene, hexafluorobenzene, ⁇ -dichlorobenzene, chlorobenzene, toluene, o-, m-, and -xylenes, mesitylene, cyclohexane, ethylacetate, THF, and dichloromethane.
  • a ligated procatalyst containing a Group 15 electron donor ligand is prepared in solvent and then added to the desired monomer or mixture of monomers containing the dissolved WCA salt activator.
  • the reaction mixture is mixed and the reaction is permitted to proceed from about 1 minute to about 2 hours.
  • the reaction mixture can be optionally heated at a temperature ranging from about 20°C to about 200°C.
  • the polymerization temperature is not specifically limited, but is usually in the range of 20°C to 120°C, preferably 20°C to 90°C.
  • the polymerization reaction can be carried out under an inert atmosphere such as nitrogen or argon.
  • the catalyst system components of the invention are moisture and oxygen insensitive, allowing for less stringent handling and processing conditions.
  • Post curing of the polymers of the present invention is preferably conducted at elevated temperatures for a time period sufficient to reach a desired conversion of monomer to polymer.
  • the post curing cycle is preferably conducted for 1 to 2 hours over a temperature range of from about 100° C to about 300° C, preferably from about 125° C to about 200 °C , and more preferably from about 140° C to about 180 °C.
  • the cure cycle can be effected at a constant temperature or the temperature can be ramped, e.g., incrementally increasing the curing temperature from a desired minimum curing temperature to a desired maximum curing temperature over the desired curing cycle time range.
  • the temperature ramping can be effected by following a gradual increasing slope on a temperature vs.
  • the temperature maximum can optionally be held for a desired period of time until the desired cure state is attained.
  • the temperature ramping can follow a stepwise curve on a temperature vs. time plot. In this embodiment the temperature ramping proceeds in step fashion from the desired minimum cure temperature to the desired maximum cure temperature in the cure cycle.
  • the post cure can be effected by combining post cure embodiments (A and B)wherein the cure cycle encompasses a combination of steps and slopes from the desired minimum cure temperature to the desired maximum cure temperature.
  • the cure cycle can follow a curve from the desired minimum cure temperature to the desired maximum cure temperature.
  • the rise and run of the slope do not have to be constant between the minimum and maximum cure temperatures of the cure cycle. In other words the rise and run can vary when proceeding from the desired minimum to desired maximum cure temperatures.
  • the foregoing cure cycle temperature ramping curves are illustrated below.
  • additives include but not limited to those selected from blowing agents; foaming agents; pigments; dyes and luminescent additives such as organic and inorganic phosphors; fillers such as mica, germania, titania, zirconia, zinc oxide, zinc sulfide, lead sulfide, boron nitrides, silicon nitrides, silicon carbides, barium titanate, lead magnesium niobate-lead titanate (Tamtron ® Y5V183U dielectric filler available from Tarn Ceramics); and also nano scale fillers; alumina; silica; gold coated polymer lattices; silver particles; plasticizers; lubricants; flame retardants, tackifyers; fibers; antioxidants; antiozonants; UV stabilizers; odor masking agents; odor absorbing agents; crosslinking agents; tough
  • additives are various elastomers such as polyisobutylene, for example Vistanex MML 140TM from Exxon Mobil Chemical, or copolymers thereof which can be added to the monomer or monomer mixtures of the present invention to function as a viscosity thickener.
  • the identity and relative amounts of such components are well known to those skilled in the art and need not be discussed in detail here.
  • the optional additives are employed to enhance the processing, appearance and/or the physical properties of the polymer.
  • the additives can be utilized to enhance and modify inter alia the coefficient of thermal expansion, stiffness, impact strength, dielectric constant, solvent resistance, color, and odor of the polymer product.
  • the viscosifiers are employed to modify the viscosity and shrinkage of the monomeric mixture before the polymerization reaction is initiated.
  • Suitable viscosity modifiers include elastomers and the norbornene-type polymers of the present invention.
  • the viscosity modifiers can be dissolved in the polymerizable monomers of the invention to increase the viscosity of the monomer reaction mixture.
  • crosslinking can be effected during the initial polymerization reaction of the monomer mixture or during a post polymerization thermal or photochemical curing step.
  • the preferred molar ratio of monomer to metal preferably ranges from about
  • the above polycycloolefin copolymers when utilized inter alia for electronic and/or optical applications are copolymers which have several good physical properties.
  • the copolymers have good optical transparency such as at least about 80%, desirable at least about 90%, and preferably at least 95% of the light having a wave length from about 100, or about 370, or about 400, to about 700, or about 800, or about 1,000 nanometers being transferable through a quartz sheet having a thickness of 125 microns.
  • the polymer can be semi transparent, or opaque.
  • the copolymers have high glass transition temperatures such as from about 100°C to about 400°C depending upon the particular polymer.
  • copolymers of decyl norbornene and trimethoxy silyl norbornene will have a Tg of from about 130 to about 170°C while polynorbornene will have a Tg of from about 360 to about 400°C.
  • the polycyclic olefin copolymers have desirable low coefficients of thermal expansion such as from about 30 to about 300 with an average of from about 125 to about 175 parts per million expansion per degree centigrade.
  • Another desirable attribute of the copolymers made in accordance with the present invention is that they have low moisture absorption such as from 0 or 0.01 to about 1%, desirably from about 0 or 0.01 to about 0.5% and preferably from about 0 or 0.01 to about 0.2% by weight based upon the total weight of the copolymers, according to ASTM test D570-98.
  • the tensile modulus of the copolymers are low, such as from about 10 to about 10,000 and preferably from about 100 to about 1,000 mega Pascals according to ASTM D638-95.
  • the formulations of the present invention have low viscosities in the range from about 10 to about 10,000 and desirably from about 100 to about 500 centipoises. They thus have good leveling properties.
  • the refractive index of the optical transparent copolymers of the present invention can be tailored and accordingly can be matched to be similar to that of an adjacent transparent layer, coating, etc.
  • Refractive indexes of generally from about 1.2 to about 3.0, desirably from about 1.3 to about 2.5 with from about 1.4 to about 1.8 being preferred.
  • the copolymers are cured at low temperatures in at least one stage such as from about 15°C to about 200°C with from about 60°C to about 150°C being preferred.
  • copolymers made according to the methods of the present invention have good adhesion to various materials such as silicon, silicon dioxide, silicon oxynitride, silicon nitride, or quartz, ceramic, alumina, BT-laminate, FR-4, various polymers such as poly(phthalamide) (PPA), poly(phenylene sulfide) (PPS), polyetherimide (PEI), poly(amide imide) (PAI), epoxy, polyimide, polyamide, polyester, polyacrylate, and the like and other common optical or electronic materials.
  • PPA poly(phthalamide)
  • PPS poly(phenylene sulfide)
  • PEI polyetherimide
  • PAI poly(amide imide)
  • Examples of still other materials which could serve as substrates include various metals such as copper, lead, silver, gold, aluminum, tin, iron, chromium, titanium, tantalum, nickel, and alloys thereof. Values of from about 6 to about 12 lbs per inch and desirably from about 8 to about 10 lbs per inch are generally obtained. Still another desirable property is that of good thermal aging such as at least about 2,000 hours at 125°C. Moreover, the copolymers of the present invention are readily processable and easily molded and have good thermal aging. The copolymers produced by the foregoing processes are useful inter alia in electronic, optical, and optoelectronic applications.
  • dielectric films i.e., multichip modules and flexible circuits
  • chip attach adhesives underfill adhesives
  • chip encapsulants glob tops
  • near hermetic board and chip protective coatings embedded passives
  • laminating adhesives capacitor dielectrics
  • high frequency insulator/connectors high voltage insulators
  • high temperature wire coatings conductive adhesives
  • reworkable adhesives photosensitive adhesives and dielectric film
  • resistors inductors
  • capacitors antennas and printed circuit board substrates.
  • a chip As known to the art and to the literature, the definition of a chip is an "integrated circuit" or "a small wafer of a semiconductor material that forms the base for an integrated circuit", Mirriam Webster's Collegiate Dictionary, 10 th Ed, 1993, Merriam- Webster, Inc., Springfield, MA, USA.
  • the above electronic applications such as multichip modules, chip encapsulants, chip protective coatings, and the like relate to semiconductor substrates or components and/or to integrated circuits containing the optical polymers of the present invention which encapsulate the same, coat the same, and the like.
  • the optical coating or encapsulant thus readily serves as a covering or packaging material for a chip or an integraed circuit, or a semiconductor, which is a part of an optical semiconductor component.
  • optical applications uses include but are not limited to optical films, ophthalmic lenses, wave guides, optical fiber, photosensitive optical film, specialty lenses, windows, high refractive index film, laser optics, color filters, optical adhesives, and optical connectors.
  • Other optical applications include the use of the above copolymers as coatings, encapsulants, and the like for numerous types of light sensors including, but not limited to, charge coupled device (CCD) image sensors, and complimentary metal oxide semi-conductors (CMOS) as well as imaging CMOS (IMOS).
  • CCD charge coupled device
  • CMOS complimentary metal oxide semi-conductors
  • IMOS imaging CMOS
  • sensors can generally be described as devices which have an optical component, in the path of a light source, which transmits light thereto to a converter which transmits light patterns, color, and the like to electronic signals which can be sent and stored on a processor or computer.
  • Other end uses include sensors such as for cameras, for eample web and digital, and surveillance, sensors for telescopes, microscopes, various infra-red monitors, bar code readers, personal digital assistants, image scanners, digital video conferencing, cellular phones, electronic toys, and the like.
  • Other sensor uses include various biometric devices such as iris scanners, retina scanners, finger and thumb print scanners, and the like.
  • Example LEDs include visible light LEDs, white light LEDs, ultraviolet light LEDs, laser LEDs, and the like. Such LEDs can be utilized for lighting systems in automobiles, a backlight source in displays, for general illumination, replacement of light bulbs, traffic lights and the like.
  • Optoelectronics can be defined as the convergence of microeletronics and photonics in a single package material.
  • Optoelectronic packaging materials can be low CTE and/or low modulus adhesives that are used to maintain ultra-tight alignment.
  • misalignments of 1 micron can cause significant increase attenuation levels and hence loss of signal.
  • Such packaging materials protect, as by encapsulation, coating, covering, adhesion, etc., either electronic or optical components or both, such as microchips, semi-conductors, circuitry, as well as any of the above-noted electronic applications and also light sensors, light emitting diodes, organic LEDs, Polymer LEDs and Organic or inorganic photoluminescent devices or coatings, optical films, wave guides, optical fibers, optical connectors, as well as any of the above other noted optical applications or uses.
  • electronic or optical components or both such as microchips, semi-conductors, circuitry, as well as any of the above-noted electronic applications and also light sensors, light emitting diodes, organic LEDs, Polymer LEDs and Organic or inorganic photoluminescent devices or coatings, optical films, wave guides, optical fibers, optical connectors, as well as any of the above other noted optical applications or uses.
  • the amount of Group 10 residual metal in the polymer product is preferably less than about 100 ppm, more preferably less than about 50 ppm, even more preferably less than 10 ppm, and most preferably less than 5 ppm, wherein the residual metal to polymer is calculated on a weight to weight basis.
  • Procatalyst A (Allyl)palladium(tricyclohexylphosphine)chloride. To (allyl)palladium chloride dimer (1.00 g, 2.73 mmol) was added about 75 ml of toluene to give a yellow solution with a small amount of insolubles. To this mixture was added tricyclohexylphosphine (1.55 g, 5.54 mmol) dissolved in about 20 ml of toluene. A clear yellow solution resulted which was allowed to stir at room temperature for 2 hours. The solvent was removed in vacuo to yield a pale yellow powder which was dissolved in THF and stirred overnight.
  • Procatalyst B (Allyl)palladium(tricyclohexylphosphine) triflate.
  • a methylene chloride solution of (allyl)palladium(tricyclohexylphosphine)chloride (1.00 g, 2.16 mmol) was added to a methylene chloride solution of silver triflate
  • Procatalyst F (Allyl)palladium(tri-o-tolylphosphine)chloride.
  • Example 8 Procatalyst G. (Allyl)palladium(tri-o-tolylphosphine) triflate. To a methylene chloride solution (10 ml) of (allyl)palladium chloride dimer (1.50 g, 4.10 mmol) was added a methylene chloride solution (10 ml) of tri-o-tolylphosphine (2.50 g, 8.22 mmol). This solution was added to a methylene chloride solution of silver triflate (1.81 g, 8.19 mmol). A precipitate formed immediately. The reaction mixture was shielded from room light and allowed to stir overnight. The resulting slurry was filtered through Celite " to yield an orange filtrate.
  • Procatalyst H (Allyl)palladium(tri-o-tolylphosphine) nitrate.
  • a suspension of silver nitrate (0.935 g, 5.50 mmol) in methylene chloride was added a methylene chloride solution of (allyl)palladium chloride dimer (1.00 g, 2.73 mmol) and tri-o-tolylphosphine (1.66 g, 5.46 mmol). After stirring the mixture overnight, the mixture was filtered to give an orange filtrate. This solution was concentrated and layered with pentane. The resulting white solid was isolated.
  • Procatalyst I (Allyl)palladium(tri-o-tolylphosphine) acetate. To a suspension of silver acetate (0.919 g, 5.50 mmol) in methylene chloride was added a methylene chloride solution of (allyl)palladium chloride dimer (1.00 g, 2.73 mmol) and tri-o-tolylphosphine (1.66 g, 5.46 mmol). After stirring the mixture overnight, the mixture was filtered to give an orange filtrate. This solution was concentrated and layered with pentane. The resulting white solid was isolated. 31 P NMR (CD 2 C1 2 ): 20.8 (s).
  • (+)-Di-:-chlorobis ⁇ 2-[l-(dimethylamino)ethyl]phenyl-C,N- ⁇ dipalladium (0.65 g, 1.1 mmol) was dissolved in methylene chloride.
  • Example 22 Procatalyst U. A suspension of (allyl)palladium(trinaphthylphosphine) (triflate) (0.50 g, 0.70 mmol) in 100 ml of toluene was added to a slurry of ether- free lithium tetrakis(pentafluorophenyl)borate (0.48 g, 0.70 mmol) in toluene. After stirring the mixture for 30 minutes, the solution was filtered through Celite* 1 to give a yellow filtrate. The solution was concentrated in vacuo and layered with pentane to give an orange oil. The solvent was decanted and the oil was washed with pentane and then dried in vacuo and then washed twice more with pentane and dried to give an light orange solid.
  • Example 30 To a mixture of butylnorbornene (8.41 g, 56.1 mmol) and
  • Example 31 To a mixture of butylnorbornene (8.41 g, 56.1 mmol) and 5-triethoxysilylnorbornene (1.59 g, 6.21 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (1.1 mg, 0.0012 mmol). This mixture was diluted with 32 ml of toluene.
  • Example 38 To a mixture of butylnorbornene (8.41 g, 56.1 mmol) and 5-triethoxysilylnorbornene (1.59 g, 6.21 mmol) was added trityl tetrakis(pentafluorophenyl)borate (1.1 mg, 0.0012 mmol). This mixture was diluted with 32 ml of toluene. Approximately 50 :1 of a toluene solution of
  • Example 44 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and
  • Example 48 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and
  • Example 49 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and 5-triethoxysilylnorbornene (0.420 g, 1.64 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 E 2 ⁇ (0.6 mg, 0.0006 mmol). This mixture was diluted with 38 ml of toluene.
  • Example 51 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and
  • Example 52 To a clean, dry 500 ml stainless steel reactor was added 45.8 g butylnorbornene (305 mmol) and 4.2 g of 5-triethoxysilylnorbornene (16.4 mmol) diluted with toluene to a total volume of 320 ml. The mixture was heated to 65°C with agitation. To this mixture was added lithium tetrakis(pentafluoro ⁇ henyl)borate • 2.5 Et 2 0 (9.4 mg, 0.011 mmol) in 4 ml of toluene.
  • Example 54 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and
  • Example 56 (Comparative) A mixture of butylnorbornene (4.58 g, 30.5 mmol) and 5-triethoxysilylnorbornene (0.420 g, 1.64 mmol) was diluted with 16 ml of toluene. A solution of (allyl)palladium chloride dimer (0.00011 mmol) and tricyclohexylphosphine (0.00022 mmol) in toluene was added to the monomer solution. No WCA salt activator was employed. The mixture was heated to 65°C for 4 hours. The mixture was then poured into an excess of acetone. No polymer precipitated.
  • Example 57 (Comparative) To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and 5-triethoxysilylnorbornene (0.420 g, 1.64 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (1.0 mg, 0.0011 mmol). This mixture was diluted with 16 ml of toluene. A solution of (allyl)palladium chloride dimer (0.00011 mmol) in toluene was added to the monomer solution. No neutral Group 15 electron donor ligand providing compound was added. The mixture was heated to 65°C for 4 hours. The mixture was then poured into an excess of acetone. No polymer precipitated.
  • Example 60 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and
  • 5-triethoxysilylnorbornene (0.420 g, 1.64 mmol) was added lithium tetrakis( ⁇ entafluorophenyl)borate • 2.5 Et 2 0 (1.0 mg, 0.0011 mmol) and 5-butenylnorbornene (0.060 g, 0.00033 mol) as a chain transfer agent and comonomer.
  • the mixture was diluted with 32 ml of toluene.
  • To this solution was added 100 :1 of a toluene solution of allylpalladium(tricyclohexylphosphine) triflate (Catalyst B, 1.3 mMol).
  • Example 70 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and
  • the polymer contained approximately 5% 5 butenylnorbornene according to 1H NMR analysis.
  • the mixture was heated to 65°C for 18 hours.
  • the viscous solution was diluted with toluene and then the polymer was precipitated into an excess of acetone. After filtering and drying in vacuo overnight a conversion of 3.70 g of polymer was obtained. Yield 74%.
  • the polymer contained approximately 12% 5-butenylnorbornene according to 1H NMR analysis.
  • the mixture was heated to 65°C for 18 hours.
  • the viscous solution was diluted with toluene and then the polymer was precipitated into an excess of acetone. After filtering and drying in vacuo overnight a conversion of 2.85 g of polymer was obtained. Yield 57%.
  • the polymer contained approximately 25% 5-butenylnorbornene according to 1H NMR analysis.
  • Example 82 To a mixture of butylnorbornene (4.58 g, 30.5 mmol) and 5-triethoxysilylnorbornene (0.420 g, 1.64 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (0.0010 g, 0.0012 mmol). This mixture was diluted with 16 ml of toluene. To this mixture was added
  • Example 85 To a mixture of butylnorbornene (8.41 g, 56.1 mmol) and 5-triethoxysilylnorbornene (1.59 g, 6.21 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 ⁇ (0.5 mg, 0.0006 mmol). This mixture was diluted to a total volume 18 ml with toluene. A mixture of
  • Example 90 To a mixture of butylnorbornene (4.2 g, 28.1 mmol) and
  • Example 95 To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and 5-triethoxysilylnorbornene (0.4 g, 1.5 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 0 (0.5 mg, 0.0006 mmol). This mixture was diluted to a total volume 16 ml with toluene. A mixture of (allyl) ⁇ alladium chloride dimer (0.000062 mmol) and triphenylphosphine (0.00013 mmol) in toluene and added to the monomer solution. The mixture was heated to 100°C for 4 hours. The resulting mixture was poured into acetone to precipitate the polymer which was filtered and dried in vacuo overnight. Yield 4.1 g (82%).
  • Example 99 To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and
  • Example 103 To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and
  • Example 104 To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and 5-triethoxysilylnorbornene (0.4 g, 1.5 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (0.5 mg, 0.0006 mmol). This mixture was diluted to a total volume 16 ml with toluene. A mixture of
  • Example 108 To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and
  • Example 109 To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and
  • Example 114 A. To a mixture of butylnorbornene (4.6 g, 30.7 mmol) and 5-triethoxysilylnorbornene (0.4 g, 1.5 mmol) was added lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (0.5 mg, 0.0006 mmol). This mixture was diluted to a total volume 16 ml with toluene.
  • Example 116 A 1.3 M solution of norbornene (2.0 g, 21 mmol) in toluene was prepared. In a separate vial added about 100 :1 of a 0.0088 M solution of lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 in toluene and about 100 :1 of a 0.0018 M solution of (methallyl)nickel(tricyclohexylphosphine)(triflate) (Catalyst Q) in toluene were mixed. This mixture was added to the norbornene solution and heated to 65°C for 18 hours. The resulting viscous solution was diluted with toluene and poured into an excess of methanol to precipitate the polymer. Yield 1.8 g (92%). ,
  • Example 117 A solution of butylnorbornene (4.6 g, 31 mmol) and the ethylester of
  • Lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (1.2 mg, 0.0014 mmol), (allyl) alladium(trifluoroacetate) dimer (2.8 mg, 0.00014 mmol), and triphenylamine (2.7 mg, 0.00027 mmol) were premixed in 3 ml toluene and then added to the monomer mixture. The mixture was heated to 65°C for 64 hours. Polymer was precipitated by adding the reaction mixture to acetone. Yield 0.68 g (14%).
  • Lithium tetrakis(pentafluorophenyl)borate i 2.5 Et 2 0 1.2 mg, 0.0014 mmol
  • (allyl)palladium(trifluoroacetate) dimer 2.8 mg, 0.00014 mmol
  • triphenylstibine 3.8 mg, 0.00027 mmol
  • Hexylnorbornene (3.73 g, 21.0 mmol), 5-triethoxysilylnorbomene (0.82 g, 3.2 mmol), cyclohexenylnorbomene (1.40 g, 8.1 mmol) and hexene-1 (0.52 g, 6.4 mmol) were diluted with toluene to 19 ml total volume along with lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (1.4 mg, 0.0016 mmol). The contents were warmed to 65°C and
  • Example 129 Hexylnorbornene (5.16 g, 29.0 mmol), 5-triethoxysilylnorbomene (0.82 g, 3.2 mmol), and hexene-1 (0.26 g, 3.2 mmol) were diluted with cyclohexane to 30 ml total volume along with lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (1.4 mg, 0.0016 mmol). The contents were warmed to 65°C and
  • Butylnorbornene (5.0 g, 33 mmol) was added to a deareated water (50 ml) solution of lithium tetrakis(pentafluorophenyI)borate • 2.5 Et 2 ⁇ (14.5 mg, 0.016 mmol).
  • the mixture was placed into a blender under nitrogen.
  • the mixture was stirred at high speed at room temperature for 6 min.
  • the polymer formed was isolated by filtration and dried. Yield 0.9 g (18
  • Example 133 Butylnorbornene (10.0 g, 66.7 mmol) and 0.17 ml of a 30% aqueous solution of sodium lauryl sulfate was added to a deareated water (100 ml) solution of lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 ⁇ (2.9 mg, 0.0033 mmol). The mixture was stirred rapidly with a mechanical stirrer for 1 hour. The catalyst, (allyl)palladium dimer (0.12 mg, 0.00033 mmol), and ligand, tricyclohexylphosphine (0.19 mg, 0.00067 mmol), in 0.1 ml of toluene was added to the mixture.
  • (allyl)palladium dimer (0.12 mg, 0.00033 mmol
  • ligand, tricyclohexylphosphine (0.19 mg, 0.00067 mmol
  • the mixture was stirred at room temperature for about 4 hours.
  • a milky solution resulted.
  • the milky solution essentially an emulsion, was added to acetone (100 ml) to give 0.25 g (2.5 %) of white powder after filtering and drying.
  • Butylnorbornene (5.0 g, 33 mmol) was added to a deareated water (100 ml) solution of lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (2.9 mg, 0.0033 mmol) in the presence of 0.5 wt % sodium lauryl sulfate.
  • the mixture was stirred rapidly with a magnetic stirrer.
  • the catalyst, (allyl)palladium dimer (0.12 mg, 0.00033 mmol), and ligand, tricyclohexylphosphine (0.19 mg, 0.00067 mmol), in 0.1 ml of toluene was added to the mixture.
  • the mixture was stirred at room temperature for 4 hours. A milky solution and precipitated polymer resulted. About 2.1 g (42% yield) of polymer was isolated.
  • Example 136 Butylnorbornene (5.0 g, 33 mmol) was added to a deareated water (50 ml) solution of lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 ⁇ (2.9 mg, 0.0033 mmol) in the presence of 1.0 wt % sodium lauryl sulfate. The mixture was stirred rapidly with a magnetic stirrer. The catalyst, (allyl)palladium dimer (0.12 mg, 0.00033 mmol), and ligand, tricyclohexylphosphine (0.19 mg, 0.00067 mmol), in 0.1 ml of toluene was added to the mixture. The mixture was stirred at room temperature for 4 hours. A milky solution and precipitated polymer resulted. About 1 g (20% yield) of polymer was isolated.
  • Example 137 Butylnorbornene (5.0 g, 33 mmol) was added to a deareated water (100 ml) solution of lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 ⁇ (2.9 mg, 0.0033 mmol) in the presence of 0.5 wt % sodium lauryl sulfate. The mixture was stirred rapidly with a mechanical stirrer. The catalyst,
  • Butylnorbornene (5.0 g, 33 mmol) was added to a deareated water (5 ml) solution of lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (5.4 mg, 0.0064 mmol) in the presence of 0.5 wt % sodium lauryl sulfate.
  • the mixture was stirred rapidly with a magnetic stirrer.
  • a milky solution and precipitated polymer resulted.
  • the particle size of the polymer in the milky solution was determined to be about 181 nm with a polydispersity of 2.6.
  • the amount of polymer contained in the water emulsion constituted about 0.31 g (6.2 % yield).
  • the precipitated polymer was dried overnight and gave 2.0 g (40 %) yield.
  • Example 140 To a mixture of butylnorbornene (5.0 g, 33 mmol) and 5-triethoxysilylnorbomene (0.95 g, 3.7 mmol) was added 12 ml of toluene. Approximately 100 ⁇ l of a toluene stock solution of (allyl)palladium(tricyclohexylphosphine) trifluoroacetate (Catalyst C,
  • Example 144 To a mixture of butylnorbornene (5.0 g, 33 mmol) and 5-triethoxysilylnorbomene (0.95 g, 3.7 mmol) was added 12 ml of toluene. Approximately 100 ⁇ l of a toluene stock solution of (allyl)palladium(tricyclohexylphosphine) chloride (Catalyst A,
  • 5-triethoxysilylnorbomene (0.95 g, 3.7 mmol) was added 12 ml of toluene, all having been stored for weeks in the air.
  • a toluene stock solution of (allyl)palladiumchloride dimer (3.0 mMol) and 50 ⁇ l of a toluene stock solution of tris(trimethylsilyl)phosphine (6.0 mMol) were combined together and diluted with 2 ml of toluene, then added to a solution of ether-free lithium tetrakis(pentafluorophenyl)borate (0.0010 g, 0.0014 mmol) in 1 ml-of toluene.
  • the catalyst solution was then added to the monomer solution, and the mixture was heated to 80°C for 18 hours. A viscous solution formed which was diluted with toluene and precipitated into an excess of acetone to isolate the polymer.
  • Example 150 To a mixture of butylnorbornene (5.00 g, 33 mmol) and
  • Example 153 Butylnorbornene (5.0 g, 0.033 mol) and lithium tetrakis(pentafluorophenyl)borate » 2.5 Et 2 0 (0.0013 g, 0.0015 mmol) were dissolved in toluene (2 M solution of monomers). About 100 ⁇ l of an (allyl)palladiumchloride dimer (1.4 mmol) solution in toluene was added to a 100 ⁇ l solution of 1,3,5,7,9,1 l,13-heptacyclopentyl-15-[2- (diphenyl ⁇ hosphino)ethyl] ⁇ entacyclo[9.5.1.1 3 ' 9 .1 5,15 . l 7 ' 13 ]octasilo ⁇ ane
  • Example 154 Butylnorbornene (5.0 g, 0.033 mol) and lithium tetrakis(pentafluorophenyl)borate « 2.5 Et ⁇ O (0.0013 g, 0.0015 mmol) were dissolved in toluene (2 M solution of monomers). About 100 ⁇ l of an (allyl)palladiumchloride dimer (1.4 mmol) solution in toluene was added to a 100 ⁇ l solution of Sb(SPh) 3 (2.8 mmol) solution in toluene. This mixture was added to the monomer mixture. After 64 hours at 80°C the mixture was poured into acetone to precipitate the polymer, which was filtered and dried. Yield 3.4 g (68%).
  • Example 155 Butylnorbornene (5.0 g, 0.033 mol) and lithium tetrakis(pentafluorophenyl)borate • 2.5 Et 2 0 (0.0013 g, 0.0015 mmol) were dissolved in toluene (2 M solution of monomers). About 100 ⁇ l of an (allyl)palladiumchloride dimer (1.4 mmol) solution in toluene was added to a 100 ⁇ l solution of tris(2,4-di-t-butyl)phenylphosphite (2.8 mmol) solution in toluene. This mixture was added to the monomer mixture. After 1 minute at room temperature a polymeric puck formed indicating high conversion.
  • Example 157 A 50 weight percent solution of butylnorbornene (5.0 g, 0.033 mol) was prepared in toluene. Lithium tetrakis(pentafluorophenyl)borate » 2.5 Et 2 0 (0.0012 g, 0.0014 mmol) was combined with (allyl)palladiumchloride dimer (100 ⁇ l of a 1.4 mmol solution in toluene) and triphenylamine (100 ⁇ l of a 2.7 mmol solution in toluene) in toluene and added to the monomer mixture. A polymeric puck formed within 5-10 min at room temperature.
  • Example 159 To a thick-walled, septum-sealed glass vial, equipped with a magnetic stir -bar was added 5 -butylnorbornene (7.95 g, 53 mmol), toluene (19 ml), palladium ethylhexanoate (82 ⁇ l, 0.35 ⁇ mol), tricyclohexylphosphine (28 ⁇ l, 0.35 ⁇ mol), tris pentafluorophenyl)boron (126 ⁇ l, 6.36 ⁇ mol) and triethylaluminum (4.2 ⁇ l,
  • the polymer was precipitated by pouring into excess methanol (1 liter), filtered and washed with excess methanol prior to drying to constant weight under vacuum at 80°C.
  • the polymer was precipitated by pouring into excess acetone, filtered and washed with excess acetone prior to drying to constant weight under vacuum at 80°C. The dried, white, granular polymer was found to weigh 4.83 g (60% conversion).
  • Proton NMR revealed the polymer to be a copolymer of butylnorbornene and triethoxysilylnorbomene. The molecular weight (Mw) of the resulting copolymer was found to be 845,000.
  • Comparative Example 164 To a thick- walled, septum-sealed glass vial, equipped with a magnetic stir bar was added 5 -butylnorbornene (7.57 g, 50.4 mmol), triethoxysilylnorbomene (0.68 g, 2.6 mmol), toluene (8 ml), palladium ethylhexanoate ( 2.6 ⁇ mol), tris(pentafluorophenyl)boron (23.4 ⁇ mol) and triethylaluminum (26 ⁇ mol). (Ratio of monomers to palladium, 20,000:1). The resulting stirred solution was placed in heated oil bath at 65 °C for a total of 3 hours.
  • the resulting polymer was precipitated by pouring into excess acetone, filtered and washed with excess acetone prior to drying to constant weight under vacuum at 80°C.
  • the dried, white polymer was found to weigh less than 0.1 g (less than 1.5 % conversion). This shows the dramatic improvement of added phosphine ligands on catalyst performance.
  • the vial was placed in a heated oil bath at 70°C for 30 minutes, then the temperature was ramped to 100°C for a further 30 minutes, before being heated to 130°C for a final period of 60 minutes.
  • the colorless, transparent solid puck was allowed to cool and was then isolated by breaking the vial.
  • the conversion of the puck was measured using TGA methods (DuPont analyzer heated at 10°C per minute, under nitrogen, from 30°C to 450°C and measuring the weight loss at 350°C). The conversion was found to be 92%.
  • Example 166 A 50 weight percent solution of butylnorbornene (5.0 g, 0.033 mol) was prepared in toluene. Lithium tetrakis(pentafluorophenyi)borate''2.5 Et 2 0 (0.0012 g, 0.0014 mmol) was combined with (allyl)palladiumchloride dimer (100 ⁇ l of a 1.4 mmol solution in toluene) and 2,6-di-t-butylpyridine (100 ⁇ l of a 2.9 mmol solution in toluene) in toluene and added to the monomer mixture. A polymeric puck formed within 5-10 min at room temperature.
  • Example 167 To a solution of LiFABA (2.0 mg) and hexylnorbornene (20 g) in 30 ml of toluene was added bis(tricyclohexylphosphine)(hydrido)palladium(II) nitrate (0.8 mg) in 0.5 ml toluene. Ratio of monomer :procatalyst: activator was 100,000:1:2. The reaction was stirred for 3.5 hours at 55°C during which time the reaction became a rubbery solid. The solid was dissolved in toluene. The product was precipitated in acetone and dried under vacuum to give 19.5 g,
  • Example 168 To a solution of LiFABA (1.9 mg) and hexylnorbornene (18.5 g) and triethoxysilylnorbomene (1.5 g) in 30 ml of toluene was added bis(tricyclohexylphosphine)(hydrido)palladium(II) nitrate (0.8 mg) in 0.5 ml toluene. Ratio of monome ⁇ procatalystiactivator was 100,000:1:2. The reaction was stirred for 3.5 hours at 55°C during which time the reaction became a gel. The gel was dissolved in toluene.
  • Example 169 To a solution of LiFABA (1.2 mg) and butylnorbornene (10.0 g) in toluene (total solution volume 60 ml) was added
  • Example 170 To a solution of LiFABA (1.2 mg) and butylnorbornene (9.9 g) and butenylnorbornene (0.10 g) in toluene (total solution volume 60 ml) was added (allyl)(tricyclohexylphosphine)palladium(II) triflate (0.15 mg) in 1.0 ml toluene. Ratio of monomer.-procatalystiactivator was 250,000: 1 :5. The reaction was stirred for 4 hours at 65 °C during which time the reaction became a rubbery solid. The solid was dissolved in toluene.
  • Example 171 To a solution of LiFABA (1.2 mg) and butylnorbornene (9.5 g) and butenylnorbornene (0.50 g) in toluene (total solution volume 60 ml) was added (allyl)(tricyclohexylphosphine)palladium(II) triflate (0.15 mg) in 1.0 ml toluene. Ratio of monomer:procatalyst:activator was 250,000: 1 :5. The reaction was stirred for 4 hours at 65 °C. The product was precipitated in acetone and dried under vacuum to give 1.5 g, 15% of white polymer. Mn (Daltons): 175,150, Mw
  • Example 173 To a solution of LiFABA (1.2 mg) and butylnorbornene (7.5 g) and butenylnorbornene (2.5 g) in toluene (total solution volume 60 ml) was added (allyl)(tricyclohexylphosphine)palladium(II) triflate (0.15 mg) in 1.0 ml toluene. Ratio of monomer :procatalyst: activator was 250,000:1 :5. The reaction was stirred for 4 hours at 65°C. The product was precipitated in acetone and dried under vacuum to give 4.1 g, 41% of white polymer. Mn (Daltons): 22,182, Mw (Daltons): 77,524, Polydispersity: 3.5.
  • Example 176 A stock solution of (allyl)palladium chloride dimer (0.00623 M) and tricyclohexylphosphine (0.0125 M) in toluene was prepared. An 0.05 ml aliquot of this solution was added to a mixture of butylnorbornene (4.59 g, 30.6 mmol), 5-triethoxysilylnorbornene (0.41 g, 1.60 mmol), silica gel (1.0 g, calcined at
  • Example 177 A stock solution of (allyl)palladium chloride dimer (0.00623 M) and tricyclohexylphosphine (0.0125 M) in toluene was prepared. An 0.05 ml aliquot of this solution was added to a mixture of butylnorbornene (4.59 g, 30.6 mmol),
  • Example 179 A stock solution of (allyl)palladium chloride dimer (0.00623 M) and tricyclohexylphosphine (0.0125 M) in toluene was prepared. An 0.04 ml aliquot of this solution was added to a mixture of butylnorbornene (9.18 g, 61.2 mmol), 5-triethoxysilylnorbomene (0.82 g, 3.2 mmol), silica gel (2.00 g, calcined at
  • the wafer was then cooled and immersed in water to facilitate removal of a transparent film. From thin film tensile measurements (ASTM D1708-93), a modulus of 11,600 ⁇ 1950 psi and elongation at break of 185 ⁇ 11%.
  • Example 184 A stock solution of (allyl)palladium chloride dimer (0.00623 M) and tricyclohexylphosphine (0.0125 M) in toluene was prepared. An 0.05 ml aliquot of this solution was added to a mixture of decylnorbornene (7.06 g, 30.6 mmol), 5-triethoxysilylnorbomene (0.41 g, 1.60 mmol), Irgafos ® 168 (0.06 g, 0.33 mmol) and lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 ⁇ (1.4 mg, 0.0016 mmol). After allowing the mixture to stand for about two hours, it was poured onto a silicon wafer. The wafer was then heated to about 170°C and held for 30 minutes. The wafer was then cooled and immersed in water to facilitate removal of a transparent film.
  • the mixture was poured onto a silicon wafer to form a thin film of solution.
  • the mixture was then heated to about 170°C and held for 30 minutes.
  • the wafer was then cooled and immersed in water to facilitate removal of the transparent film. From thin film tensile measurements (ASTM D1708-93), a modulus of 12400 ⁇ 2450 psi and elongation at break of 42 ⁇ 6%.
  • Example 186 A stock solution of (allyl)palladium chloride dimer (0.00623 M) and tricyclohexylphosphine (0.0125 M) in toluene was prepared. An 0.05 ml aliquot of this solution was added to a mixture of decylnorbornene (5.73 g, 24.5 mmol), 5-triethoxysilylnorbomene (0.37 g, 1.45 mmol), exo, trans, exo-norbomadiene dimer (1.18 g, 6.41 mmol) and lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 ⁇ (1.4 mg, 0.0016 mmol).
  • the mixture was poured onto a silicon wafer to form a thin film.
  • the mixture was then heated to about 170°C and held for 30 minutes.
  • the wafer was then cooled and immersed in water to facilitate removal of the transparent film. From thin film tensile measurements (ASTM D1708-93), a modulus of 43700 psi and elongation at break of 11%.
  • the wafer was then cooled and immersed in water to facilitate removal of the transparent film. From thin film tensile measurements (ASTM D 1708-93), a modulus of 62,000 ⁇ 3400 psi and elongation at break of 68 -_- 7%. Dynamic thermogravimetric analysis of the film (10°C/minute, from 35 to 460°C) showed negligible weight loss at 350°C (1.0%). Example 188.
  • Example 191 A stock solution of (allyl)palladium (tricyclohexylphosphine) trifluoroacetate (0.00623 M) in toluene was prepared. An 0.05 ml aliquot of this solution was added to a mixture of decylnorbornene (7.16 g, 30.6 mmol), 5- triethoxysilylnorbomene (0.41 g, 1.6 mmol), and lithium tetrakis(pentafluorophenyl)-borate '2.5Et 2 0 (1.4 mg, 0.0016 mmol) which contained 40 weight percent of lead magnesium niobate (TAMTRON" Y5 VI 83 U from Tarn Ceramics). This mixture was then poured onto a silicon wafer. The mixture was then heated to about 180°C and held for 30 minutes. A film containing the lead magnesium niobate was recovered after cooling.
  • TAMTRON lead magnesium niobate
  • Example 192 Lithium tetrakis(pentafluoro ⁇ henyl)borate -2.5 Et 2 ⁇ (1.4 mg, 0.0016 mmol) was added to hexylnorbornene (5.44 g, 30.6 mmol). To this mixture was added about 0.05 ml of a 0.00623 M solution of (allyl)palladium(tricyclohexylphosphine) trifluoroacetate in toluene. This mixture was poured onto a silicon wafer and heated to 270°C for 30 minutes. A clear film was recovered.
  • Example 193 A stock solution of (allyl)palladium (tricyclohexylphosphine) trifluoroacetate (0.00623 M) in toluene was prepared. An 0.1 ml aliquot of this solution was added to a mixture of decylnorbornene (7.16 g, 30.6 mmol), 5- triethoxysilylnorbomene (0.41 g, 1.6 mmol), and lithium tetrakis(pentafluorophenyl)-borate "2.5Et 2 ⁇ (2.8 mg, 0.0032 mmol) which contained 40 weight percent of barium titanate (Cabot). This mixture was then poured onto a silicon wafer. The mixture was then heated to about 170°C and held for 30 minutes. A film containing the barium titanate was recovered after cooling.
  • decylnorbornene 7.16 g, 30.6 mmol
  • 5- triethoxysilylnorbomene (0.41
  • Example 195 A stock solution of (allyl)palladium(tricyclohexylphosphine) trifluoroacetate (0.00623 M) in toluene was prepared. An 0.1 ml aliquot of this solution was added to a mixture of hexylnorbornene (5.44 g, 30.6 mmol), 5- triethoxysilylnorbomene (0.41 g, 1.6 mmol), and lithium tetrakis(pentafluorophenyl)-borate "2.5 Et 2 0 (2.8 mg, 0.0032 mmol). This mixture was then poured onto a silicon wafer. The mixture was then heated to about 170°C and held for 30 minutes. A film was recovered after cooling.
  • Example 207 A stock solution of (allyl)palladium(tricyclohexylphosphine) trifluoroacetate (0.00623 M) in toluene was prepared. An 0.0.10 ml aliquot of this solution was added to a mixture of hexylnorbornene (10.9 g, 61.1 mmol), 5- triethoxysilylnorbornene (0.82 g, 3.2 mmol), and lithium tetrakis(pentafluorophenyl)borate *2.5 Et 2 ⁇ (2.2 mg, 0.0026 mmol), which had been saturated with disperse orange number 1. This mixture was then filtered through a 0.2 :m filter and then was poured onto a silicon wafer in air. The mixture was then heated to about 170°C and held for 15 minutes. A colored, transparent film resulted.
  • Example 209 A stock solution of (allyl)palladium(tricyclohexylphosphine) trifluoroacetate (0.00623 M) in toluene was prepared. An 0.0.10 ml aliquot of this solution was added to a mixture of hexylnorbornene (10.9 g, 61.1 mmol), 5- triethoxysilylnorbornene (0.82 g, 3.2 mmol), and lithium tetrakis(pentafluorophenyl)borate "2.5 Et 0 (2.2 mg, 0.0026 mmol), which had been saturated with disperse yellow number 7. This mixture was then filtered through a 0.2 :m filter and then was poured onto a silicon wafer in air. The mixture was then heated to about 170°C and held for 15 minutes. A colored, transparent film resulted.
  • Example 211 A stock solution of (allyl)palladium(tricyclohexylphosphine) trifluoroacetate (0.00623 M) in toluene was prepared. An 0.2 ml aliquot of this solution was added to a mixture of hexylnorbornene (5.44 g, 30.6 mmol), 5- triethoxysilylnorbomene (0.41 g, 1.6 mmol), and lithium tetrakis(pentafluorophenyl)borate "2.5 Et 2 0 (2.2 mg, 0.0026 mmol), and 5 weight 15-
  • Example 21 To a mixture of norbornene (4.84 g, 51.5 mmol) and
  • the permittivity of the film averaged 5.0 over 1 MHz to 1.1 GHz frequency range, while the loss tangent averaged 0.016 over the same frequency range.
  • the mixture was poured from the bottle into a 3 inch diameter ring resting on top of a 4 inch oxidized silicon wafer coated with 8000 ⁇ of aluminum (aluminum had been coated by evaporation).
  • the wafer was ramped from 70°C to 170°C in 4 minutes.
  • the mixture was heated for 15 minutes at 170°C.
  • the wafer and ring were removed from the hotplate and quenched in water.
  • the film contracted due to its exposure to lukewarm water, the aluminum delaminated from the wafer, but the aluminum remained adhered to the film.
  • the permittivity of the film averaged 15.8 over 1 MHz to 1.1 GHz frequency range, while the loss tangent averaged 0.016 over the same frequency range.
  • the permittivity of the film averaged 10.8 over 1 MHz to 1.1 GHz frequency range, while the loss tangent averaged 0.014 over the same frequency range.
  • Hexylnorbornene (10.88 g, 61.1 mmol), 5-triethoxysilylnorbomene (0.82 g, 3.2 mmol), and lithium tetrakis(pentafluorophenyl)borate »2.5 Et 2 0 (0.011 g, 0.013 mmol) were combined in air.
  • the permittivity of the film averaged 6.8 over 1 MHz to 1.1 GHz frequency range, while the loss tangent averaged 0.002 over the same frequency range.
  • Lead magnesium niobate-lead titanate (24.72 g, TAMTRON ® Y5V183U from Tam Ceramics) was crashed in a Siebtechnik reciprocating grinder for 1 minute. Then a solution of 5-triethoxysilylnorbomene (8.24 g, 32.2 mol), lithium tetrakis(pentafluorophenyl)borate «2.5 Et 2 0 (0.011 grams, 0.013 mmol), and (allyl)palladium(tricyclohexylphosphine)(trifluoroacetate) (0.0064 mmol) was added to the lead magnesium niobate-lead titanate. The mixture was milled for an additional 3 minutes.
  • the resulting smooth paste was spread onto a glass plate with a doctor blade with a setting of 20 mils.
  • the plate was placed under vacuum and heated to 250°C over 75 minutes and held at held for 1 hour. Then the plate was cooled under vacuum overnight to give thin composite film was a smooth surface. Examination of cross-sectioned film revealed homogeneous dispersion of the composite.
  • Hexylnorbornene (5.44 g, 31.0 mmol), 5-triethoxynorbomene (0.41 g, 1.6 mol), and lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 0 (2.8 mg, 0.0032 mmol) were mixed together in air.
  • To this mixture was added (allyl)palladium(tricyclohexylphosphine)(trifluoroacetate) (0.00064 mmol) as a stock solution (0.0249 ml) in methylene chloride.
  • the resulting mixture was heated to 70°C for about 10 minutes until significant thickening of the solution was observed.
  • the mixture was then poured onto a glass plate and drawn with a doctor blade.
  • the plate was placed in an oven and slowly ramped to 140°C and held there for 1 hour. After cooling, the thin film was removed from the glass plate with the aid of cool water. A transparent film measuring about 7 mils thick was recovered. The thickness of the film can be adjusted by changing the doctor blade setting.
  • the mixture was then filtered through a 0.2 : Teflon ® frit with the aid of a syringe into a clean test tube.
  • the test tube was then heated to 90°C held for 30 minutes and then ramped up to 170°C and held for 1 hour.
  • the test tube was cooled and the ends of the polymeric cylinder were cut off and polished with #4000 sandpaper to give a completely transparent cylinder of 5 cm length.
  • Example 230 Butylnorbornene (5.90 g, 39 mmol) and triethoxysilylnorbomene (0.53 g, 2.1 mmol) were combined with lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 0 (0.9 mg, 0.0011 mmol) in a vial. (Allyl)palladium(triisopro ⁇ ylphosphine)(triflate) (0.00021 mmol) in 67 ⁇ l of toluene was added to the vial. The vial was heated to 270°C for 15 minutes to yield a hard plug of polymer.
  • Example 23 Hexylnorbornene (5.44 g) and triethoxysilylnorbomene (0.41 g) were combined with lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 0 (0.9 mg, 0.0011 mmol) in a vial in air. To this mixture was added
  • Example 233 Hexylnorbornene (5.44 g) and triethoxysilylnorbomene (0.41 g) were combined with lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 0 (0.6 mg, 0.0006 mmol) in a vial in air. To this mixture was added (allyl)palladium(tricyclohexylphosphine)(triflate) (0.00013 mmol) from a 0.0031 M solution in toluene. The vial was heated to 90°C for 30 minutes and then to 230°C for 30 min. A clear polymer rod resulted.
  • Hexylnorbornene (4.3 g, 24 mmol), triethoxysilylnorbomene (0.41 g, 1.6 mmol), and ethylester of 5-norbornene carboxylic acid (1.07 g, 6.4 mmol) were combined with lithium tetrakis(pentafluorophenyl)borate "2.5E 2 ⁇ (1.1 mg, 0.013 mmol) in a vial. To this mixture was added
  • Triethoxysilylnorbomene (8.24 g, 32 mmol) and lithium tetrakis(pentafluorophenyl)borate •2.5Et 2 ⁇ (11 mg, 0.013 mmol) were mixed in a vial. To this mixture was added
  • Hexylnorbornene (5.16 g, 29 mmol), triethoxysilylnorbomene (0.41 g, 1.6 mmol), and benzylether of 5-norbornene methanol (0.34 g, 1.6 mmol) were combined with lithium tetrakis(pentafluorophenyl)borate » 2.5Et 2 0 (14 mg, 0.016 mmol) were mixed together.
  • the catalyst, (allyl)palladium(tricyclohexylphosphine)trifluoroacetate (0.00032 mmol, 0.13 ml of a 0.025 M solution in methylene chloride), was added to the mixture. The mixture was poured onto a silicon wafer and heated to 90°C for 15 minutes and then to 170°C for 15 minutes. A transparent film resulted.
  • Hexylnorbornene (5.16 g, 29 mmol), triethoxysilylnorbomene (0.41 g, 1.6 mmol), and phenylnorbornene (0.27 g, 1.6 mmol) were combined with lithium tetrakis(pentafluorophenyl)borate »2.5Et 2 0 (14 mg, 0.016 mmol).
  • the catalyst (allyl)palladium(tricyclohexylphosphine)trifluoroacetate (0.00032 mmol, 0.13 ml of a 0.025 M solution in methylene chloride), was added to the mixture. The mixture was poured onto a silicon wafer and heated to 90°C for 15 minutes and then to 170°C for 15 minutes. A film resulted.
  • Example 238 Hexylnorbornene (5.44 g, 31 mmol), triethoxysilylnorbomene (0.41 g, 1.6 mmol), and Trilene ® CP30 (Uniroyal Chemical Co.) (0.31 g) were combined with lithium tetrakis(pentafluorophenyl)borate *2.5Et 2 0 (2.8 mg, 0.00032 mmol) were mixed together.
  • the catalyst, (allyl)palladium(tricyclohexylphosphine)trifluoroacetate (0.00064 mmol, 26 ⁇ l of a 0.025 M solution in methylene chloride), was added to the mixture. The mixture was poured onto a silicon wafer and heated to 90°C for 15 minutes and then to 170°C for 15 minutes. An opaque film resulted.
  • Example 23 Hexylnorbornene (5.44 g, 31 mmol), triethoxysilylnorbomene (0.41 g, 1.6 mmol), and Trilene ® CP40 (Uniroyal Chemical Co.) (0.31 g) were combined with lithium tetrakis(pentafluorophenyl)borate » 2.5Et 2 0 (2.8 mg, 0.00032 mmol).
  • the catalyst, (allyl)palladium(tricyclohexylphosphine)trifluoroacetate (0.00064 mmol, 26 ⁇ l of a 0.025 M solution in methylene chloride), was added to the mixture. The mixture was poured onto a silicon wafer and heated to 90°C for
  • Hexylnorbornene (5.44 g, 31 mmol), triethoxysilylnorbomene (0.41 g, 1.6 mmol), and Trilene ® CP50 (Uniroyal Chemical Co.) (0.31 g) were combined with lithium tetrakis(pentafluorophenyl)borate »2.5Et 2 0 (2.8 mg, 0.00032 mmol) were mixed together.
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