WO2002050142A1 - Elastomeres reticulables nitriles fluorosulfones a base de fluorure de vinylidene presentant une faible tg et procedes pour leurs preparations - Google Patents
Elastomeres reticulables nitriles fluorosulfones a base de fluorure de vinylidene presentant une faible tg et procedes pour leurs preparations Download PDFInfo
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- WO2002050142A1 WO2002050142A1 PCT/CA2001/001439 CA0101439W WO0250142A1 WO 2002050142 A1 WO2002050142 A1 WO 2002050142A1 CA 0101439 W CA0101439 W CA 0101439W WO 0250142 A1 WO0250142 A1 WO 0250142A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/10—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and halogen atoms, or nitro or nitroso groups, bound to the same acyclic carbon skeleton
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- 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
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
- C08F214/22—Vinylidene fluoride
- C08F214/222—Vinylidene fluoride with fluorinated vinyl ethers
Definitions
- the present invention relates to crosslinkable fluorosulfonated nitrile elastomers having the characteristic of having low glass transition temperatures (T g ).
- the present invention also relates to original methods allowing in particular the synthesis of crosslinkable elastomers having low glass transition temperatures (T g ) as well as the use of such elastomers in the manufacture of stable parts intended in particular for the aeronautical, petroleum and automobile industries. , mining and nuclear, as well as in the plastics industry.
- T g glass transition temperatures
- such elastomers are useful in the manufacture of mechanically and chemically stable parts such as membranes, polymer electrolytes, ionomers, components of fuel cells supplied for example with hydrogen or methanol, seals, o-rings, hoses, hoses, pump bodies, diaphragms, and piston heads.
- the partially or fully fluorinated ion exchange membranes are usually chosen in chlorine-soda type processes or fuel cells supplied in particular with hydrogen or methanol.
- Such membranes are available commercially under names such as Nafion ®, Flemion ®, Dow ®.
- Other similar membranes are proposed by Ballard Inc. in application WO 97/25369, which describes copolymers, inter alia, based on tetrafluoroethylene (TFE) and perfluorovinyl ethers.
- the present invention further relates to monomeric compounds which can be used in particular in the synthesis of crosslinkable fluorosulfonated nitrile elastomers.
- copolymer as used in the context of the present invention relates to compounds formed from macromolecules containing different monomer units 2, 3, 4, 5, 6 or more. Such high molecular weight compounds are obtained when one or more monomers polymerize together.
- copolymers thus obtained from 3, 4, 5 or 6 different monomer units terpolymers, tetrapolymers, pentapolymers and hexapolymers, obtained respectively by the reactions of terpolymerization, tetrapolymerization, pentapolymerization and d 'hexapolymérisation.
- Fluorinated elastomers have a unique combination of properties (thermal resistance, to oxidation, to ultraviolet (UN), to aging, to corrosive chemicals and to fuels; low surface tension, low refractive index, low dielectric constant and low water absorption), which enabled them to find “high tech” applications in many fields: seals (space, aeronautics), semiconductors (microelectronics), hoses, pipes, pump bodies and diaphragms (chemical, automotive and petroleum industries).
- the copolymers and terpolymers based on vinylidene fluoride are polymers of choice for applications such as coatings and paints or more recently membranes or fuel cell components. These polymers are resistant to aggressive, reducing or oxidizing conditions as well as to hydrocarbons, solvents, lubricants (Prog. Polym. Sci. 26 (2001) 138-144).
- NDF-based elastomers can be crosslinked by various routes (chemical in the presence of polyamines, polyalcohols and organic or ionizing peroxides or by electron bombardment), well described in the journals Prog. Polym. Sci. 26 (2001) 105, Rubber Chem. Technol. 55 (1982) 1004, in the book “Modem Fluoropolymers” (1997), chapters 32 (p. 597) and 18 (p. 335).
- crosslinking routes for fluorinated elastomers can also be envisaged: in the presence of salts (for example, potassium salts) of hydroquinone, bisphenol A or bisphenol AF to crosslink elastomers carrying pentafluorophenyl groups [Prog. Polym. Sci. 26 (2001) 157]; by “thiol-ene” systems between elastomers carrying mercaptan functions and non-conjugated dienes [Designed Monomers and Polymers 2 (1999) 267] and by crosslinking of elastomers having nitrile groups from tetraalkyltin catalytic interactions (and particularly tetraphenyl tin) or silver oxide.
- salts for example, potassium salts
- CSM Cure Site Monomers
- One of the main interests of the present invention lies in obtaining fluorinated elastomers carrying nitrile groups.
- TFE tetrafluoroethylene
- F 2 C CFOCF 2 CF (CF 3) OC 2 F 4 SO 2 F (PFSO 2 F).
- Asahi Glass uses this sulfonated monomer for the manufacture of Flemion ® membranes.
- Other monomers of the same functionality for example,
- NDF perfluoroalkyl vinyl ethers
- PAVE functional perfluoroalkyl vinyl ethers
- perfluoromethyl vinyl ether (PMVE) is essentially used [USP 4,281,092 (1981); USP 4,972,038 (1990); USP 5,677,389 (1997); WO 97/19982 and European application patent 11,853 (1980)].
- the present invention describes the preparation and then the copolymerization of trifluorovinyl monomers with a nitrile end with fluorinated monomers. This process leads to the synthesis of new crosslinkable fluorosulfonated nitrile elastomers having very low glass transition temperatures (T g ), good resistance to acids, petroleum and fuels and good processing properties.
- T g glass transition temperatures
- elastomers contain, for example, from 2 to 14 mol% of 5,6,6-trifluoro-5-hexenenitrile (F-CN), from 20 to 30 mol% of perfluoro (4-methyl-3 , 6-dioxaoct-7-en) sulfonyl fluoride (PFSO 2 F) and from 66 to 78 mol% of vinylidene fluoride (VDF or VF 2 ).
- F-CN 5,6,6-trifluoro-5-hexenenitrile
- PFSO 2 F perfluoro (4-methyl-3 , 6-dioxaoct-7-en) sulfonyl fluoride
- VDF or VF 2 vinylidene fluoride
- they are prepared by radical copolymerization of F-CN and PFSO 2 F or by radical te ⁇ olymerization of F-CN, PFSO 2 F and VDF in the presence of different organic initiators such as, for example, peroxides
- fluorinated olefins such as vinyl fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropene, 1,2-difluorodichloroethylene, 1,1-difluoro-2-chloroethylene or 1-hydropentafluoropropene can also be used in tetrapolymerization. Furthermore, the present invention relates to a process for crosslinking these polymers.
- the present invention relates to the use of the elastomers thus obtained in various fields of application in particular in the manufacture of membranes, seals and in the plastics industry.
- a first object of the present invention consists of the family of compounds corresponding to formula I:
- X represents an oxygen atom or no atom
- Y represents a hydrogen or fluorine atom
- Z represents a hydrogen or fluorine atom
- W represents a hydrogen or fluorine atom or a CF 3 group; and n is a natural whole number between 0 and 10 inclusive.
- the present invention consists of the subfamily of compounds corresponding to formula II:
- n is a natural whole number between 0 and 10 inclusive.
- a second object of the present invention consists of a process for the preparation of a fluorinated copolymer by radical copolymerization, said process comprising the reaction of a compound corresponding to formula I:
- R F1 denotes: a linear or branched group of formula
- R F2 denotes: a linear or branched group of formula
- G represents: a functional group SO 2 F, CO H,
- the fluorinated copolymer is prepared by reaction of a compound corresponding to formula H ':
- R F represents the groups R F1 or R F2 , the group G being absent when R F represents R F1 and the group G being, when present with R F2 , defined as above;
- q, r and s independently represent natural whole numbers such that the ratio q / r varies from 1 to 30 and such that s varies from 20 to 300, preferably the ratio q / r varies from 1 to 25 and s varies from 25 to 250, more preferably still the ratio q / r varies from 3 to 20 and s varies from 30 to 220.
- a third object of the present invention consists of a copolymerization process, comprising the reaction of a compound corresponding to formula H ':
- R F ⁇ denotes: a linear or branched group of formula C n F 2n + ⁇ (n denoting a natural whole number varying from 1 to 10); or
- R F2 denotes: a linear or branched group of formula
- G represents: a functional group SO F, CO 2 H, CO 2 R (with R denoting the group C p H 2p + ⁇ , in which p represents a natural whole number varying from 0 to 5) or designating a functional group P (O) (OR ') in which R' independently denotes a hydrogen atom or a C ⁇ -C 5 alkyl group, and
- R F represents the groups R F ⁇ or R F2 previously defined, the group G being absent when R F represents R F ⁇ ;
- e, f, g and h independently representing whole natural numbers such that the ratio f / e varies from 5 to 50, such that the ratio f / g varies from 1 to 20 and such that h varies from 10 to 250 , preferably the f / e ratio varies from 5 to 30, the f / g ratio varies from 2 to 10 and h varies from 15 to 200, more preferably still the f / e ratio varies from 10 to 25, the f / g ratio varies from 2 to 5 and h varies from 20 to 150.
- the copolymerization reaction is carried out in a cuvée (“batch” type) and preferably, this reaction is carried out in emulsion, in micro-emulsion, in suspension or in solution.
- the reaction is preferably initiated in the presence of at least one organic radical initiator preferably chosen from the group consisting of peroxides, peresters, percarbonates, alkyl peroxypivalates and diazo compounds.
- organic radical initiator preferably chosen from the group consisting of peroxides, peresters, percarbonates, alkyl peroxypivalates and diazo compounds.
- reaction is carried out in the presence of:
- At least one peroxide preferably selected from the group consisting of t-butyl peroxide, t-butyl hydroperoxide, t-butyl peroxypivalate and t-amyl peroxypivalate; and or
- At least one perester which is preferably benzoyl peroxide; and or
- At least one percarbonate which is preferably t-butyl cyclohexyl peroxydicarbonate.
- the concentration of peroxide and / or perester and / or percarbonate in the reaction medium is such that the initial molar ratio between the initiator and the monomers ([initiator] o / [monomers] o) is between 0 , 1 and 2%, and preferably between 0.5 and 1%, the initiator being the compound of formula tBuO-OtBu or tBuO-OC (O) tBu and the monomers being the compounds of formula I, ⁇ , HIi, HL., H 'and V, the expression [initiator] 0 expresses the molar concentration initial initiator and the expression [monomers] 0 expresses the total initial concentration of monomers.
- reaction is carried out:
- the reaction is carried out in solution in the presence of at least one organic solvent.
- This organic solvent is preferably chosen from the group consisting of perfluoro-n-hexane, acetonitrile or mixtures of perfluoro-n-hexane and acetonitrile and the content of solvent in the reaction medium is such that the mass ratio initial between the solvent and the monomers is between 0.5 and 1.5, and preferably between 0.6 and 1.2.
- the reagent of formula III 2 is perfluoro (4-methyl-3,6-dioxaoct-7-ene) sulfonyl fluoride and the compound of formula V is vinylidene fluoride.
- a fourth object of the present invention consists of the family of fluorinated polymers, preferably fluorinated copolymers and more preferably by the family of fluorosulfonated nitrile copolymers capable of being obtained by implementing the methods which are the subject of the present invention.
- a preferential subfamily of the fluorosulfonated nitrile copolymers which are the subject of the present invention consists of the copolymers containing:
- VDF vinylidene fluoride
- fluorosulfonated nitrile copolymers are those containing:
- VDF vinylidene fluoride
- Typical fluorosulfonated nitrile copolymers of the present invention exhibit identical or similar spectroscopic characteristics to those illustrated in Table 2 below.
- a fifth object of the present invention consists of a method allowing the preparation of a fluorosulfonated nitrile elastomer according to the present invention.
- This process consists in subjecting one or more copolymers according to the invention to a crosslinking step carried out preferably in the presence of tetraphenyl tin or silver oxide in proportion varying from 0.1 to 10 parts by weight per 100 parts by weight of the fluorosulfonated nitrile copolymer, the mixture being pressed (pressure of 20 bars) at 175 ° C for 2 hours then at 200 ° C for 24 hours and finally at 220 ° C for 12 hours.
- the sixth object consists of the fluorosulfonated nitrile elastomers capable of being obtained by a process according to the fifth object of the present invention.
- T g glass transition temperature
- those having very low glass transition temperatures are of particular interest. More particularly those which have a glass transition temperature, measured according to standard ASTM E-1356-98, preferably between -43 and -22 ° C, more preferably still between -34 and -29 ° C, offer possibilities. interesting applications in high-tech fields.
- a preferential subfamily consists of those which have an inherent viscosity measured according to the ASTM method D-2857-95 of between 0.9 and 2.0 mL / g and / or which exhibits ATG thermostability up to 297 ° C in air at 10 ° C / min, temperature value at which a mass loss of 5% is measured.
- a seventh object of the present invention consists of the use of one or more of the crosslinkable fluorosulfonated nitrile elastomers according to the invention, for: the manufacture of membranes, polymer electrolytes, ionomers, fuel cell components supplied for example with hydrogen or methanol;
- An eighth object of the present invention consists of a process for crosslinking the sulphonyl groups of a sulphonated polymer chosen from the family of fluorosulphonated nitrile elastomers according to the sixth object, in which:
- said polymer is brought into contact with a crosslinking agent allowing the reaction between two sulfonyl groups originating from adjacent polymer chains, to form said crosslinking bonds;
- the invention describes in particular the synthesis of original fluorinated elastomeric copolymers, based on synthetic fluorinated nitrile comonomers (such as F-CN) and containing a functional perfluoroalkyl vinyl ether and / or a functional perfluoroalkoxyalkyl vinyl ether and optionally other fluorinated alkenes.
- the originality of this invention resides in particular in the following facts: °) the preparation of trifluorovinyl monomers ⁇ -nitriles, reactants in copolymerization with commercial fluorinated alkenes or functional fluorinated monomers;
- the synthesis of the fluorinated elastomers in question in this invention does not require the use of monomers carrying siloxane groups, the latter generally contributing to a decrease in the glass transition temperature (T g ) but having the drawback of degrade from 200 ° C.
- the fluorinated elastomers synthesized by said invention have very low glass transition temperatures (T g ), these elastomers thus being able to find applications in the field of plastics processing ("Aid Processing" or processing agents), or d other advanced industries (from aerospace, electronics, automotive, petroleum, transporting corrosive, acidic or very cold fluids such as liquid nitrogen, oxygen and hydrogen).
- T g glass transition temperatures
- high thermal resistance seals can be prepared from these elastomers;
- the fluorosulfonated nitrile elastomers are easily crosslinkable in the presence of tin tetralkyl or tetraphenyl tin. This crosslinking significantly improves the properties of resistance to heat, to oxidation, to solvents, to hydrocarbons, to fuels, to acids and to aggressive media.
- F 2 C CF- 0- CF 2 -CF- ( CF 2 -CF 2 -S0 2 FIX
- X is F, Cl or CF 3 ; and n is 0 to 10 inclusive.
- the crosslinking can be carried out while the polymer is in the form of a nonionic polymer precursor, but after having been molded or pressed in the desired form.
- the present invention also relates to the molding or pressing of the crosslinked polymer in the form of membranes or hollow fibers (hereinafter "membranes") for use in a fuel cell, an electrolyser in water, a chlorine-soda process, electrosynthesis, water treatment and ozone production.
- membranes or hollow fibers hereinafter "membranes”
- r is 0 or 1; M comprises an inorganic or organic cation;
- Y includes N or CR in which R comprises H, CN, 5 F, SO 2 R 3 , C ⁇ - 20 substituted or unsubstituted alkyl;
- R 3 includes F, C ⁇ _ 20 substituted or unsubstituted alkyl; Ci - 20 substituted or unsubstituted aryl; 0 Ci.2 unsubstituted or substituted alkylene, wherein the substituent 15 comprises one or more halogen atoms;
- Q comprises a di - valent radical C1 - 20 alkyl, Ci - 20 oxaalkyle, Ci.20 azaalkyle, C1-20 thiaalkyle, C1-20 aryle or C 1 . 20 alkylaryl, each of which may be
- A includes M, Si (R ') 3 , Ge (R') 3 or Sn (R ') 3 in which R' is C ⁇ . ⁇ s alkyl;
- L comprises a labile group such as a halogen atom (F, Cl, Br), an electrophilic heterocycle N-imidazolyl, N-triazolyl, R 2 SO 3 in which R 2 is an optionally halogenated organic radical; and R includes the proton; alkyl, alkenyl, oxaalkyl, oxaalkenyl, azaalkyle, azaalkenyle, thiaalkyle, thiaalkényle, dialkylazo, optionally hydrolysable silaalkyle, optionally hydrolysable silaalkyle radicals, said radicals being able to be linear, branched or cyclic and comprising from 1 to 18 carbon atoms; aliphatic cyclic or heterocyclic radicals of 4 to 26 carbon atoms optionally comprising at least one side chain comprising one or more heteroatoms such as nitrogen, oxygen or sulfur; aryls, arylalkyls, alkylaryls and alken
- the crosslinking reaction may involve all of the sulfonyl groups, or only a fraction thereof.
- the crosslinking reagents can be added or used according to various techniques well known to the person skilled in the art.
- the polymer is molded into the desired form before crosslinking, for example in the form of membranes or hollow fibers, and the material is immersed or covered with a solution of the crosslinking agent in one or more solvents promoting the reaction. of coupling.
- the remaining -SO 2 L groups can be hydrolyzed in a conventional manner in the form of sulfonate by alkaline hydrolysis.
- the crosslinked polymer obtained according to the process of the present invention can be easily separated from the side products of the reaction, which are for example volatile, such as (CH) 3 SiF or (CH) 3 SiCl.
- the crosslinked polymer can be washed using an appropriate solvent such as water or an organic solvent in which it is insoluble.
- the method of said invention consists of a radical polymerization in the presence of conventional initiators, readily available commercially; 6) tetrafluoroethylene (TFE) is not used in this invention, which is accompanied by a significant reduction in the costs of synthesis of the copolymers;
- the perfluorinated olefin which enters into the composition of the fluorinated elastomers prepared by said invention is vinylidene fluoride (VDF); it is much less expensive and much less dangerous than TFE and gives the elastomers obtained good resistance to oxidation, chemical agents, polar solvents and petroleum and a decrease in the glass transition temperature (T g ) ;
- the fluorinated elastomers in question in said invention can be prepared from the monomer PFSO 2 F, the copolymerization of which with acrylonitrile or 5,6,6-trifluoro-5-hexenenitrile (F-CN) and the polymerization with acrylonitrile or F-CN and VDF have never been the subject of work described in the literature.
- this sulfonated monomer through its sulfonyl fluoride function (-SO 2 F), makes it possible to create crosslinking sites in these elastomers;
- the fluorinated elastomers obtained by this process have very low glass transition temperatures (T g ), varying from -43 to -22 ° C.
- these fluorosulfonated nitrile copolymers can be easily crosslinked by means of tetraphenyl tin or silver oxide, thus leading to stable, inert materials and insoluble in all solvents, hydrocarbons or strong acids.
- the present invention relates more particularly to the synthesis of reactive trifluorovinyl ⁇ -nitrile monomers and the obtaining of fluorosulfonated nitrile elastomers based on VDF and PAVE and then the study of their crosslinking, as well as their scope.
- the crosslinking of these fluorosulfonated nitrile polymers is carried out in the presence of tetraphenyl tin or silver oxide leading to stable triazine rings.
- tetraphenyl tin or silver oxide leading to stable triazine rings.
- the first aspect of this invention consists in making available new trifluorovinyl monomers, reactive in copolymerization with fluorinated olefins and having a nitrile end.
- the compounds in question can, by way of example, be represented by the following formulas I and ⁇ :
- H 2 C CHX (CH 2 ) n CN (I)
- X represents an oxygen atom or no atom
- Y represents a hydrogen or fluorine atom
- n is a natural whole number between 0 and 10 inclusive.
- H 2 C CH (CH 2 ) n C ⁇ (JE)
- the scope of the present invention extends to all types of processes generally used and in particular to emulsion, microemulsion, bulk, suspension and solution polymerization. Solution polymerization is however preferably used.
- This therefore includes: vinyl fluoride (VF), vinylidene fluoride (VDF), trifluoroethylene, chlorotrifluoroethylene
- CTFE 1-hydropentafluoropropylene, hexafluoroisobutylene, 3,3,3-trifluoropropene, l, 2-difluoro-l, 2-di chloroethylene, l, l-difluoro-2-chloroethylene and in general all fluorinated or perfluorinated vinyl compounds.
- perfluorovinyl ethers also play the role of comonomers.
- PAVE perfluoroalkyl vinyl ethers
- PMVE perfluoromethyl vinyl ether
- PEVE perfluoroethyl vinyl ether
- PPVE perfluoropropyl vinyl ether
- PAAVE perfluoroalkoxy alkyl vinyl ethers
- 26 (2001) 105 such as perfluoro (2-n-propoxy) propyl-vinyl ether, perfluoro (2-methoxy) propyl-vinyl ether; perfluoro (3-methoxy) propyl-vinyl ether, perfluoro (2-methoxy) ethyl-vinyl ether; perfluoro (3,6,9-trioxa-5,8-dimethyl) dodeca-1-ene, perfluoro (5-methyl-3,6-dioxo) -l-nonene.
- perfluoroalkoxyalkyl vinyl ethers with carboxylic ends or with sulfonyl fluoride ends such as perfluoro (4-methyl-3,6-dioxaoct-7-ene) sulfonyl fluoride, can also be used for the synthesis of fluorinated elastomers described in this invention.
- Mixtures of PAVE and PAAVE may be present in the copolymers.
- perfluoro (4-methyl-3,6-dioxaoct-7-en) sulfonyl fluoride PFSO 2 F
- PFSO 2 F perfluoro (4-methyl-3,6-dioxaoct-7-en) sulfonyl fluoride
- nitrile monomers used in this invention are olefins in which at least one of the hydrogen atoms has been replaced by a nitrile group and optionally, one or more remaining hydrogen atoms have been replaced by one of another halogen, mainly fluorine.
- Some of these monomers are commercial such as acrylonitrile, allyl cyanide, ralphafluoroacrylonitrile, 1,1-dicyanoethylene or synthetic such as perfluoro (4-cyanobutyl-vinyl ether) or perfluoro (8-cyano-5 -methyl-3,6-dioxa-l-octene), l, l, 2-trifluoro-4-cyanobutene or any other perfluorinated carbonitrile monomer.
- the solvents used to carry out the solution polymerization are the following:
- the solvents preferably used are methyl acetate and acetonitrile in variable amounts.
- the reaction temperature range can be determined by the initiator decomposition temperature; it varies from 20 to 200 ° C. According to an advantageous embodiment of the methods of the invention, the reaction is carried out:
- the polymerization can be initiated by the intervention of the usual initiators of radical polymerization.
- initiators include azo derivatives (such as azobisisobutyronitrile, AIBN), dialkyl peroxydicarbonates, acetylcyclohexanesulfonyl peroxide, aryl or alkyl peroxide such as peroxide dibenzoyl, dicumyl peroxide, t-butyl peroxide, t-alkyl perbenzoates and t-alkyl peroxypivalates.
- dialkyl peroxides preferably t-butyl peroxide
- dialkyl peroxydicarbonates such as diethyl and di-isopropyl peroxydicarbonates
- t-alkyl peroxypivalates such as t-butyl peroxypivalates and t-amyl and, more particularly still, to t-alkyl peroxypivalates.
- One of the polymerization methods used can also be by microemulsion as described in the European patent EP. 250,767 or by dispersion, as indicated in American patent 4,789,717 or European patents 196,904; 280.312 and 360.292.
- reaction pressures vary between 2 and 120 bars depending on the experimental conditions.
- Chain transfer agents can generally be used to regulate and mainly decrease the molecular weights of the copolymers.
- the elastomers of this invention can be crosslinked using tetraphenyl tin or silver oxide which, by action on the nitrile groups, lead to triazine rings.
- tetraphenyl tin or silver oxide which, by action on the nitrile groups, lead to triazine rings.
- Such systems are well known, such than those described in the Prog. Polym. Sci. 14 (1989) 251 and 26 (2001) 105 as well as in the chapter “Perfluoroelastomers and their Functionalization” of the book “Macromolecular Design of Polymeric Materials” (1997).
- the vulcanization of these elastomers can also be carried out by ionic methods or by radiation or by electron bombardment as described in the article by Lyons, chapter 18, pp. 335-347 from the book “Modem Fluoropolymers” (1997) (Ed. J. Scheirs).
- copolymers of such compositions can find applications in the preparation of O-rings, pump costs, diaphragms having very good resistance to fuels, petrol, t-butyl methyl ether, to alcohols, motor oils and strong acids (for example example HC1, HNO 3 and H 2 SO 4 ), combined with good elastomeric properties, in particular very good resistance to low temperatures.
- These copolymers also have the advantage of being crosslinkable in the presence of agents traditionally used.
- a Carius tube (inside diameter: 78 mm, thickness: 2.5 mm and length: 310 mm) containing a magnetic rod, 175.5 g (1.08 moles) of iodine monochloride (HERE), 1.1 g (0.006 mole) of benzophenone and 150 g of methyl chloride is cooled in a liquid nitrogen / acetone mixture (-80 ° C). After having made there 3 vacuum / nitrogen cycles, 131 g (1.12 moles) of chlorotrifluoroethylene (CTFE) are introduced there. The tube is sealed then gradually warmed to room temperature, then the solution is stirred under ultraviolet (UN, mercury vapor lamp Philips HPK 125 W) for 6 hours.
- UV ultraviolet
- THF is first removed and then a yellow liquid fraction is obtained (60.4 g) corresponding to the fluorinated hexanenitrile no longer containing iodine.
- the yield is 88%.
- T Eb 104-109 ° C / 22 mm Hg.
- IRTF (KBr, cm “1 ): 2,951.5 (v C c); 2,271.0 (U C N); 1,250 - 1,295 ( ⁇ CH ,) 1,050 - 1,215 (UCF); 703.5 ( ⁇ c ⁇ ).
- the acetonitrile is partially evaporated and then the copolymer is precipitated by adding dropwise to 200 ml of cold, highly agitated pentane.
- the copolymer sticks to the walls of the erlerimeyer and after decantation, separation and drying under vacuum at 80 ° C. to a constant weight, 38 g of very viscous amber brown product are obtained.
- the mass yield is 75%.
- the 19 F NMR spectrum makes it possible to know unambiguously the molar percentages of the three comonomers from signals characteristic of the different fluorinated groups contained in the constituent units of VDF (72% in moles); PFSO 2 F (25 mol%) and nitrile monomer F-CN (3.0 mol%) (see Table 2).
- thermogravimetric analyzes carried out using TGA 51-133 apparatus, Texas Instruments, in air, with a heating rate of 10 ° C. min "1 , have shown that this copolymer loses approximately 5% of its mass at 285 ° C.
- the 19 F NMR analysis characterizing different chemical shifts of the various fluorinated groups are reported in Table 2.
- the infrared spectrum is similar to that of Example 5.
- the infrared spectrum is similar to that of Example 5.
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Abstract
Description
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002552032A JP4187095B2 (ja) | 2000-12-20 | 2001-10-12 | ガラス転移点Tgが低く、ビニリデンのフッ化物を主成分とし、フッ化スルフォン酸基を含むニトリル化合物の重合体で、架橋することのできるエラストマー、及びその製法 |
AU2002213687A AU2002213687A1 (en) | 2000-12-20 | 2001-10-12 | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluoride with low tg and methods for preparing same |
EP01981986A EP1355962A1 (fr) | 2000-12-20 | 2001-10-12 | Elastomeres reticulables nitriles fluorosulfones a base de fluorure de vinylidene presentant une faible tg et procedes pour leurs preparations |
US10/432,957 US20040097675A1 (en) | 2000-12-20 | 2001-10-12 | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluorine with low tg and methods for preparing same |
CA002427481A CA2427481A1 (fr) | 2000-12-20 | 2001-10-12 | Elastomeres reticulables nitriles fluorosulfones a base de fluorure de vinylidene presentant une faible tg et procedes pour leurs preparations |
US11/198,291 US20050272887A1 (en) | 2000-12-20 | 2005-08-08 | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluoride with low Tg and processes for preparing the same |
US12/289,061 US20090088533A1 (en) | 2000-12-20 | 2008-10-20 | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluorine with low TG and methods for preparing same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CA2,328,433 | 2000-12-20 | ||
CA002328433A CA2328433A1 (fr) | 2000-12-20 | 2000-12-20 | Elastomeres nitriles fluorosulfones reticulables a faible tg a base de fluorure de vinylidene et ne contenant ni du tetrafluoroethylene ni de groupement siloxane |
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US11/198,291 Continuation US20050272887A1 (en) | 2000-12-20 | 2005-08-08 | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluoride with low Tg and processes for preparing the same |
Publications (1)
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WO2002050142A1 true WO2002050142A1 (fr) | 2002-06-27 |
Family
ID=4167902
Family Applications (1)
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PCT/CA2001/001439 WO2002050142A1 (fr) | 2000-12-20 | 2001-10-12 | Elastomeres reticulables nitriles fluorosulfones a base de fluorure de vinylidene presentant une faible tg et procedes pour leurs preparations |
Country Status (6)
Country | Link |
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US (3) | US20040097675A1 (fr) |
EP (1) | EP1355962A1 (fr) |
JP (2) | JP4187095B2 (fr) |
AU (1) | AU2002213687A1 (fr) |
CA (1) | CA2328433A1 (fr) |
WO (1) | WO2002050142A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005052040A1 (fr) * | 2003-11-13 | 2005-06-09 | 3M Innovative Properties Company | Membranes d'electrolyte polymeres reticules par trimerisation de nitrile |
US20090088533A1 (en) * | 2000-12-20 | 2009-04-02 | Hydro-Quebec | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluorine with low TG and methods for preparing same |
US7847035B2 (en) | 2003-11-24 | 2010-12-07 | 3M Innovative Properties Company | Polymer electrolyte with aromatic sulfone crosslinking |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE290026T1 (de) * | 1999-12-29 | 2005-03-15 | Hydro Quebec | Fluorosulfoneelastomere mit niedrigem tg basierend auf vinylidenfluorit |
US20100093878A1 (en) * | 2007-12-27 | 2010-04-15 | E.I. Du Pont De Nemours And Company | Crosslinkable fluoropolymer, crosslinked fluoropolymers and crosslinked fluoropolymer membranes |
EP2669302B1 (fr) * | 2008-04-08 | 2016-11-09 | Greene, Tweed Technologies, Inc. | Composition résistant à un plasma d'oxygène caractérisée par une faible adhérence et procédés associés |
WO2009136589A1 (fr) * | 2008-05-07 | 2009-11-12 | 日立マクセル株式会社 | Batterie secondaire non aqueuse et dispositif électronique |
US8823154B2 (en) * | 2009-05-08 | 2014-09-02 | The Regents Of The University Of California | Encapsulation architectures for utilizing flexible barrier films |
US9017899B2 (en) * | 2010-06-18 | 2015-04-28 | Shandong Huaxia Shenzhou New Material Co., Ltd. | Fluorine containing ionomer composite with ion exchange function, preparation method and use thereof |
EP2627683B1 (fr) * | 2010-10-15 | 2014-08-13 | Solvay Specialty Polymers Italy S.p.A. | Fluoroélastomères |
JP2014502152A (ja) | 2010-11-12 | 2014-01-30 | ダナ ファーバー キャンサー インスティテュート,インコーポレイテッド | 癌の治療及び診断 |
WO2012173153A1 (fr) * | 2011-06-15 | 2012-12-20 | 旭硝子株式会社 | Procédé de production d'un copolymère contenant du fluor |
US11881556B2 (en) | 2022-01-13 | 2024-01-23 | Lg Energy Solution, Ltd. | Non-aqueous electrolyte including additive for non-aqueous electrolyte, and lithium secondary battery including the non-aqueous electrolyte |
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EP0735095A1 (fr) * | 1995-03-31 | 1996-10-02 | Nippon Mektron, Ltd. | Composition élastomérique contenant du fluor |
WO2000012574A1 (fr) * | 1998-08-31 | 2000-03-09 | Dyneon Llc | Elastomeres fluorocarbones basse temperature |
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US3291843A (en) * | 1963-10-08 | 1966-12-13 | Du Pont | Fluorinated vinyl ethers and their preparation |
GB1145445A (en) * | 1966-02-16 | 1969-03-12 | Du Pont | Fluorinated perfluorovinylethers, their preparation and copolymers thereof |
US3655758A (en) * | 1966-10-10 | 1972-04-11 | Minnesota Mining & Mfg | Iminocarbonyl derivatives |
US4035565A (en) * | 1975-03-27 | 1977-07-12 | E. I. Du Pont De Nemours And Company | Fluoropolymer containing a small amount of bromine-containing olefin units |
JPS54106089A (en) * | 1978-02-08 | 1979-08-20 | Kanegafuchi Chem Ind Co Ltd | Production of fluorine-containing ion exchange membrane |
US4281092A (en) * | 1978-11-30 | 1981-07-28 | E. I. Du Pont De Nemours And Company | Vulcanizable fluorinated copolymers |
JPS58189210A (ja) * | 1982-04-30 | 1983-11-04 | Daikin Ind Ltd | テトラフルオロエチレン/フルオロ(アルキルビニルエ−テル)共重合体の製法 |
IT1189092B (it) * | 1986-04-29 | 1988-01-28 | Ausimont Spa | Processo di polimerizzazione in dispersione acquosa di monomeri fluorurati |
ATE129719T1 (de) * | 1986-12-05 | 1995-11-15 | Commw Scient Ind Res Org | Regelung des molekulargewichts und der endgruppenfunktionaltität von polymeren. |
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ATE290026T1 (de) * | 1999-12-29 | 2005-03-15 | Hydro Quebec | Fluorosulfoneelastomere mit niedrigem tg basierend auf vinylidenfluorit |
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CA2328433A1 (fr) * | 2000-12-20 | 2002-06-20 | Hydro-Quebec | Elastomeres nitriles fluorosulfones reticulables a faible tg a base de fluorure de vinylidene et ne contenant ni du tetrafluoroethylene ni de groupement siloxane |
-
2000
- 2000-12-20 CA CA002328433A patent/CA2328433A1/fr not_active Abandoned
-
2001
- 2001-10-12 AU AU2002213687A patent/AU2002213687A1/en not_active Abandoned
- 2001-10-12 US US10/432,957 patent/US20040097675A1/en not_active Abandoned
- 2001-10-12 EP EP01981986A patent/EP1355962A1/fr not_active Withdrawn
- 2001-10-12 JP JP2002552032A patent/JP4187095B2/ja not_active Expired - Fee Related
- 2001-10-12 WO PCT/CA2001/001439 patent/WO2002050142A1/fr active Application Filing
-
2005
- 2005-08-08 US US11/198,291 patent/US20050272887A1/en not_active Abandoned
-
2007
- 2007-12-20 JP JP2007329395A patent/JP2008133288A/ja active Pending
-
2008
- 2008-10-20 US US12/289,061 patent/US20090088533A1/en not_active Abandoned
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EP0735095A1 (fr) * | 1995-03-31 | 1996-10-02 | Nippon Mektron, Ltd. | Composition élastomérique contenant du fluor |
WO2000012574A1 (fr) * | 1998-08-31 | 2000-03-09 | Dyneon Llc | Elastomeres fluorocarbones basse temperature |
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DATABASE REGISTRY [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; XP002188322, Database accession no. 203928-94-3 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090088533A1 (en) * | 2000-12-20 | 2009-04-02 | Hydro-Quebec | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluorine with low TG and methods for preparing same |
WO2005052040A1 (fr) * | 2003-11-13 | 2005-06-09 | 3M Innovative Properties Company | Membranes d'electrolyte polymeres reticules par trimerisation de nitrile |
US7847035B2 (en) | 2003-11-24 | 2010-12-07 | 3M Innovative Properties Company | Polymer electrolyte with aromatic sulfone crosslinking |
US8802793B2 (en) | 2003-11-24 | 2014-08-12 | 3M Innovative Properties Company | Polymer electrolyte with aromatic sulfone crosslinking |
Also Published As
Publication number | Publication date |
---|---|
JP2004526000A (ja) | 2004-08-26 |
EP1355962A1 (fr) | 2003-10-29 |
AU2002213687A1 (en) | 2002-07-01 |
US20050272887A1 (en) | 2005-12-08 |
JP4187095B2 (ja) | 2008-11-26 |
CA2328433A1 (fr) | 2002-06-20 |
US20040097675A1 (en) | 2004-05-20 |
JP2008133288A (ja) | 2008-06-12 |
US20090088533A1 (en) | 2009-04-02 |
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