WO2001038423A1 - Saleimide modified polypropylene imine dendrimers and a process for their preparation - Google Patents

Saleimide modified polypropylene imine dendrimers and a process for their preparation Download PDF

Info

Publication number
WO2001038423A1
WO2001038423A1 PCT/FI2000/000984 FI0000984W WO0138423A1 WO 2001038423 A1 WO2001038423 A1 WO 2001038423A1 FI 0000984 W FI0000984 W FI 0000984W WO 0138423 A1 WO0138423 A1 WO 0138423A1
Authority
WO
WIPO (PCT)
Prior art keywords
dendrimer
imine
maleimide
dendrimers
modified
Prior art date
Application number
PCT/FI2000/000984
Other languages
French (fr)
Inventor
Mikael Skrifvars
Jukka Tulisalo
Kari Rissanen
Sami Nummelin
Original Assignee
Dynea Chemicals Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dynea Chemicals Oy filed Critical Dynea Chemicals Oy
Priority to AU15262/01A priority Critical patent/AU1526201A/en
Publication of WO2001038423A1 publication Critical patent/WO2001038423A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G83/00Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
    • C08G83/002Dendritic macromolecules
    • C08G83/003Dendrimers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02Polyamines
    • C08G73/0206Polyalkylene(poly)amines

Definitions

  • the invention relates to poIy(pr ⁇ pylene imine) type dendrimers, which have been modified by means of a maleimide modification reaction with the nmine groups situated in the shell of the dendrimer, and a method for ⁇ r_a__ ⁇ __fact ⁇ __ring the mentioned dendrimers.
  • Maleimide modified poly(propyle_ ⁇ e muse) dendrimers can b used as cross ⁇ inlcing agents, in coatings, adhesives and as a matrix material in composites.
  • Dendritic polymers Treelike macromolecules with a highly branched stru ⁇ cre and with a spherical shape constitute a family of pdymeis, which has been increasingly studied during recent years, These macromolecules having three-dimensional molecular architecture are referred to as dendritic polymers or dendrimers. Dendrimers differ significantly from
  • Linear oligomers which have sufficient molecular weight in order to be used e.g. in crosslmkable polyester resins, usually contain molecular chains with only two terminal functional groups in each molecule, while the structure of dendrimers is a compact spherical molecule with many blanches which cany a high number of terminal mnc ⁇ o ⁇ al groups on each molecule.
  • dendrimers yields the compounds and products made from them interesting and special properties, as an example of them can be mentioned the exceptional and favourable rheolog al properties polyesters, such as low viscosity, when compared with linear oligomers.
  • Dendrimers are usually marcufactuied by iterative synthesis in cycles, when in each stage die chemical and
  • 25 physical properties of the molecule can be adjusted- Oligomers with a strongly branched structure can be used in many applications, such as catalysts, in pharmaceutical industry, as carriers for drugs, in cosmetics industry, adhesives, coatings, composites, agricultural chemicals and as multifunctional crossl___ ⁇ ____g agents.
  • This publication discloses a hyperbran aed polyester of a polyol with 3 to 10 reactive hydroxyl groups and an aromatic polycaitooxylic anhydride with 2 to 4- carboxyl groups, each bydroxyl group of the polyol forming an ester linkage with one anhydride group of the polycarboxylic anhydride, and further glycidyl (meth)acrylate or allyl glycidyl ether forming ester linkages with the remaining carboxyl groups of the anhydride and free hydroxyl groups. Further, in the hyperbranched polyester, (meth)acrylic anhydride and/or an aliphatic carboxylic anhydride form ester linkages with free bydroxyl groups.
  • the said hyperbranched polyesters can be used as resins which are curable by UN-radiation.
  • Polyimide based t__£_mosemng resins have achieved great favour in the industry because of their many advantageous properties, especially their good physical properties in elevated temperatures and wet environment.
  • the use of malfrnni if, especially bi_____c___eimides, in thexmosetting resins is known.
  • Maleimide is a versatile reactive group, which can react by different mechanisms, which is especially advantageous in the crosslmbng of .mermosemng resins.
  • the chemical reaction between amino group and maleic acid anhydride is well known fro the literature.
  • aleimides can be manufactured from primary amines and maleic anhydride in the presence of an organic solvent like dimethyl fonnamide, dimethyl acetamide, acetone, toluene, mefhyle ⁇ e chloride, tetr__hydrofuxane or comparable either by using hearing or in the presence of acetic acid.
  • Bisinaleimides are highly reactive resins, which can be croslinked in many ways. This is a consequence of the attractive character of wo carbonyl groups of ⁇ .a.__vr ⁇ »iti..
  • Bismaleides polymerise easily without any catalyst when heating mem over the melting point and as a result strongly crosslinked polymers with good thermal stability are achieved.
  • the object of the invention are reactive maleimide modified polypropylene imine) dendrimers, a method to manufacture them and the usage of them.
  • the above mermoned aims can be reached and the polypropylene imine) type dendrimers can be customised especially to a cr ⁇ sslmkable tbexmoset ⁇ g resin by making the maleimide modification reaction with the amine groups situated on the shell of the dendrimer.
  • poly ⁇ ropyiene imine) dendrimers which are commercially available having a tradeaame Astramol (DSM).
  • DSM tradeaame Astramol
  • branched multi-purpose ma.em.if... modified poly r ⁇ pylene imine dendrimers can be manufactured to be used as starting materials for functionalised oligomeric and polymeric polyesters and poiyamides according to the following figure 1.
  • Figure 1 Figure 1
  • Polypropylene imine) dendrimer (I) which here is as an example a poly ropylene imine) dendrimer with four amine terminal groups, is let to react with maleic acid anhydride ( ⁇ ) in the presence of a solvent, After that the reaction mixture is heated up and the desired teiramaleimide is formed.
  • maleic acid anhydride reacts with die amine group forming a reactive maleimide ring.
  • the first or..the second generation polypropylene imine) dendrimer which has 4 or S amine terminal groups
  • maleic acid anhydride in the presence of an inert solvent like ⁇ etrahydrofurane or methyl ⁇ ne chloride at 20-40 ⁇ C temperature, after which the temperature is slowly elevated to 50- 120 ⁇ C, favourably to 70-90 °C, and the mixing is continued.
  • the crystallised product is separated by a suitable method, favourable it is filtered, washed up and dried
  • maleimide modified poly(propylene imine) dendrimer there exist highly reactive maleimide rings, which are able to react using many different mechanisms.
  • Maleimide modified polypropylene imide dendrimers according to the invention can be used in numerous different applications, from which can be mentioned thermosetfing plastics, coatings, inks, oil additives, adhesives, catalysts, composites and matrix materials for composites.
  • thermosetfing plastics thermosetfing plastics
  • coatings inks
  • oil additives oil additives
  • adhesives adhesives
  • catalysts composites
  • matrix materials for composites.
  • the advantages of the dendrimers according to the invention are excellent reactivity, when they are especially good for multifunctional cxossli ⁇ l ng agents, and a simple manufacturing method

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

The object of the invention is poly(propylene imine) type dendrimers, which have been modified by the help of the maleimide modification reaction with the amine groups in the shell of the dendrimer, and a method for manufacturing said dendrimers. Maleimide modified poly(propylene imine) dendrimers can be used as crosslinking agents, in coatings, adhesives and as matrix material in composites. It is characteristic to maleimide modified poly(propylene imine) dendrimer that the shell layer of it comprises reactive maleimide rings.

Description

MALEIMIDE MODIFIED POLYPROPYLENE IMINE DENDRIMERS AND A PROCESS FOR THEIR PREPARATION
The invention relates to poIy(prσpylene imine) type dendrimers, which have been modified by means of a maleimide modification reaction with the nmine groups situated in the shell of the dendrimer, and a method for ιr_a__π__factι__ring the mentioned dendrimers. Maleimide modified poly(propyle_ιe muse) dendrimers can b used as crossϊinlcing agents, in coatings, adhesives and as a matrix material in composites.
10
Treelike macromolecules with a highly branched struαcre and with a spherical shape constitute a family of pdymeis, which has been increasingly studied during recent years, These macromolecules having three-dimensional molecular architecture are referred to as dendritic polymers or dendrimers. Dendrimers differ significantly from
15 conventional linear oligo ers and polymers. Linear oligomers, which have sufficient molecular weight in order to be used e.g. in crosslmkable polyester resins, usually contain molecular chains with only two terminal functional groups in each molecule, while the structure of dendrimers is a compact spherical molecule with many blanches which cany a high number of terminal mncύoπal groups on each molecule. The
20 unique physical and chemical properties of dendrimers yields the compounds and products made from them interesting and special properties, as an example of them can be mentioned the exceptional and favourable rheolog al properties polyesters, such as low viscosity, when compared with linear oligomers. Dendrimers are usually marcufactuied by iterative synthesis in cycles, when in each stage die chemical and
25 physical properties of the molecule, such as size, shape, reactivity and solubility, can be adjusted- Oligomers with a strongly branched structure can be used in many applications, such as catalysts, in pharmaceutical industry, as carriers for drugs, in cosmetics industry, adhesives, coatings, composites, agricultural chemicals and as multifunctional crossl___ι ____g agents.
30
A series of hypcrbranched (meth)acrylated polyesters with (_LiJ_forcnt number of tsrminal double bonds per molecule has been presented and methods for the manufacture thereof have been disclosed in tie patent application WO 96707688. This publication discloses a hyperbran aed polyester of a polyol with 3 to 10 reactive hydroxyl groups and an aromatic polycaitooxylic anhydride with 2 to 4- carboxyl groups, each bydroxyl group of the polyol forming an ester linkage with one anhydride group of the polycarboxylic anhydride, and further glycidyl (meth)acrylate or allyl glycidyl ether forming ester linkages with the remaining carboxyl groups of the anhydride and free hydroxyl groups. Further, in the hyperbranched polyester, (meth)acrylic anhydride and/or an aliphatic carboxylic anhydride form ester linkages with free bydroxyl groups. The said hyperbranched polyesters can be used as resins which are curable by UN-radiation.
It is known to m_mufa__u_xe amine terminated dendrimers by using riiπτnτnobmaρe a a core molecule, to the primary amine groups of which two equivalent acrylonitriles (reaction A) are added by Micbael-addmon reaction, after which the catalytic reduction of nitrile groups to primary amine groups is made (reaction B), when the result is a dendrimer od the first generation having four primary amine cennmal groups. After this, die reaction series (A) and (B) is repeated 1 to 4 times, when finally a fifth generation molecule having amine terminal groups, is obtained. These polypropylene imine) dendrimers are commercially available, Astramol (DSM), in different generations and having amine tenninal groups or nitrile terminated groups.
Polyimide based t__£_mosemng resins have achieved great favour in the industry because of their many advantageous properties, especially their good physical properties in elevated temperatures and wet environment. The use of malfrnni if, especially bi_____c___eimides, in thexmosetting resins is known. Maleimide is a versatile reactive group, which can react by different mechanisms, which is especially advantageous in the crosslmbng of .mermosemng resins. The chemical reaction between amino group and maleic acid anhydride is well known fro the literature. aleimides can be manufactured from primary amines and maleic anhydride in the presence of an organic solvent like dimethyl fonnamide, dimethyl acetamide, acetone, toluene, mefhyleαe chloride, tetr__hydrofuxane or comparable either by using hearing or in the presence of acetic acid. Bisinaleimides are highly reactive resins, which can be croslinked in many ways. This is a consequence of the attractive character of wo carbonyl groups of ττ.a.__vrτ»iti.. Bismaleides polymerise easily without any catalyst when heating mem over the melting point and as a result strongly crosslinked polymers with good thermal stability are achieved.
On the basis of what is said above it can be seen that there is an obvious need for macromolecules and especially oligomers, which have the exceptional properties of dendrimers, such as a compact spherical, structure and numerous functional tenninal groups, and the reactivitry of malsπriides.
The object of the invention are reactive maleimide modified polypropylene imine) dendrimers, a method to manufacture them and the usage of them.
Characteristics of the maleimide modified polypropylene imine) dendrimers, of the me rYJI tn τn_.τnιfam_τE_ f erη apd nf the n$age of hem are stated in f ie da s
It has been found that according to the invention the above mermoned aims can be reached and the polypropylene imine) type dendrimers can be customised especially to a crαsslmkable tbexmosetάπg resin by making the maleimide modification reaction with the amine groups situated on the shell of the dendrimer. As a starting material for the dendrimers according to the invention can be used polyφropyiene imine) dendrimers, which are commercially available having a tradeaame Astramol (DSM). It has been found at according to the invention branched multi-purpose ma.em.if... modified poly rαpylene imine) dendrimers can be manufactured to be used as starting materials for functionalised oligomeric and polymeric polyesters and poiyamides according to the following figure 1. Figure 1
Figure imgf000005_0001
Polypropylene imine) dendrimer (I), which here is as an example a poly ropylene imine) dendrimer with four amine terminal groups, is let to react with maleic acid anhydride (β) in the presence of a solvent, After that the reaction mixture is heated up and the desired teiramaleimide is formed. In maleimide modification maleic acid anhydride reacts with die amine group forming a reactive maleimide ring.
According to the invention 5-50 mol%, favourably 10-20 mol5δ amount in excess 1. - 3. generation, favourably the first or..the second generation polypropylene imine) dendrimer, which has 4 or S amine terminal groups, is let to react with maleic acid anhydride in the presence of an inert solvent like τetrahydrofurane or methylεne chloride at 20-40 βC temperature, after which the temperature is slowly elevated to 50- 120 βC, favourably to 70-90 °C, and the mixing is continued. The crystallised product is separated by a suitable method, favourable it is filtered, washed up and dried
In the shell layer of the maleimide modified poly(propylene imine) dendrimer there exist highly reactive maleimide rings, which are able to react using many different mechanisms. As examples from them can be mentioned the polymerisation by heat, by free radical poly erisanon/crossliijking, when peroxides or azo compounds can be used as initiators, or by ion polymerisation using tertiary amides or imidazoles as catalysts or by copolymerisaπon with diene monomers and bisdienes. Maleimide modified polypropylene imide) dendrimers according to the invention can be used in numerous different applications, from which can be mentioned thermosetfing plastics, coatings, inks, oil additives, adhesives, catalysts, composites and matrix materials for composites. The advantages of the dendrimers according to the invention are excellent reactivity, when they are especially good for multifunctional cxossliαl ng agents, and a simple manufacturing method
The following examples illustrate the compounds according to the invention and the method however not limiting the invention to them.
Example 1
Manufacture of tetra_______leimide polypropylene imine) dendrimer
Into a solution conramrπg 1,0 g (3,2 m ol) of t ' first generation polypropylene imine) deridrimer in 30 ml tetrahyάrofuranc, was added 20 mol9£ excess meaning 1,49 g (15,2 mmol) maleic acid anhydride in the room temperature. A white precipitate was immediately formed. After this the temperature was slowly increased to 70 °C and the mixture was agitated for 6 hours. The product was filtered and washed with a small amount of tetrahydrofu ane and dried in a vacuum at 40 ° during the night, when tetramaleiinide polypropylene imine) dendrimer was obtained as white powder. The yieldwas l,86 (92 %).
lH-NMR ( DsN): α = 1,75 (m. 4H, NC_H*CH_CH2CTfeN), 2,02 ( , 8H,
Figure imgf000006_0001
2,84 ( , 4H, NCHzC&CΞzCIW), 3,01 (t, 8H, NOfcCIfcCHiNR), 3,56 Cm, SH, NOI H fcNR). 6.66 (s, 2H, CHCH).
I3H-NMR (CsDsM): α = 24,09 NOt fcOi fc ), 25,78 (NCBCT:CH- ), 38,07 (NCH?CHιCH2NR), 51,56 (NCH HiCHzNE), 53,78
Figure imgf000006_0002
167,32X169,64 (NCOCHCHCON).

Claims

Claϊττ.g
1. Maleimide modified poly(propyisπe imine) dendrimer, characterised in that the shell layer comprises reactive maleimide rings.
2. Maleimide modified polyφxopylene imine) dendrimer according to claim 1, characterised in that the dendrimer comprises a polypropylene imine) dendrimer of 1.-3. generation, the amine groups of which have reacted with maleic acid anhydride forming maleimide rings to the shell layer.
3. A method for mamrfacraring maleimide modified poly(propylene imine) dendrimer characterised in that a 1. - 3. generation polyφropylene imine) dendrimer is let to react with maleic acid anhydride in the presence of a solvent, after which temperature in elevated and the rnaiftfrrw. modified polypropylene imine) dendrimer obtained as the product is isolated, fevourably filtered.
4. A method according to claim 3 characterised in thai the polyφropylene imine) dendrimer is a dendrimer of 1. or 2. generation having 4 or 8 a ine terminal groups,
5. A method according to claim 3 or 4 characterised in that the solvent is an inert solvent, favourably tetrahydrofurane or metbylene chloride.
6. A method according to any of claims 3-5 characterised in that the reaction tetπperature is first 20*40 °C, after that the temperature is elevated to 50-120 DC , favourably to 70-90 eC.
7. The use of mπleύnidft modified pαlyφropylene imide deiidrimers as reactive cros_____αking agents, in thermosetting polymers, coatings, inks, oil additives, adhesives, catalysts, composites and matrix materials for composites.
04/05 ' 01 YEN 07 : 29 [ N° TX/RX 9578 ]
PCT/FI2000/000984 1999-11-17 2000-11-13 Saleimide modified polypropylene imine dendrimers and a process for their preparation WO2001038423A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15262/01A AU1526201A (en) 1999-11-17 2000-11-13 Maleimide modified polypropylene imine dendrimers and a process for their preparation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI992466A FI109353B (en) 1999-11-17 1999-11-17 Maleimide-modified poly (propyleneimine) dendrimers and a process for their preparation
FI19992466 1999-11-17

Publications (1)

Publication Number Publication Date
WO2001038423A1 true WO2001038423A1 (en) 2001-05-31

Family

ID=8555609

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2000/000984 WO2001038423A1 (en) 1999-11-17 2000-11-13 Saleimide modified polypropylene imine dendrimers and a process for their preparation

Country Status (3)

Country Link
AU (1) AU1526201A (en)
FI (1) FI109353B (en)
WO (1) WO2001038423A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE41316E1 (en) 2004-03-22 2010-05-04 Han Ting Chang Crosslinked amine polymers
US7718746B2 (en) 2003-11-03 2010-05-18 Ilypsa, Inc. Anion-binding polymers and uses thereof
US7767768B2 (en) 2003-11-03 2010-08-03 Ilypsa, Inc. Crosslinked amine polymers
WO2017203437A1 (en) 2016-05-23 2017-11-30 Ineb - Instituto Nacional De Engenharia Biomédica Biodegradable dendritic structure, methods and uses thereof
JP2017222828A (en) * 2016-06-13 2017-12-21 株式会社日本触媒 Polyalkyleneimine derivative

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938885A (en) * 1989-09-28 1990-07-03 Texaco Inc. Antioxidant dispersant polymer dendrimer
WO1997032571A1 (en) * 1996-03-06 1997-09-12 Hyperion Catalysis International, Inc. Functionalized nanotubes
JPH11158123A (en) * 1997-11-25 1999-06-15 Toyo Ink Mfg Co Ltd Multibranched compound

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938885A (en) * 1989-09-28 1990-07-03 Texaco Inc. Antioxidant dispersant polymer dendrimer
WO1997032571A1 (en) * 1996-03-06 1997-09-12 Hyperion Catalysis International, Inc. Functionalized nanotubes
JPH11158123A (en) * 1997-11-25 1999-06-15 Toyo Ink Mfg Co Ltd Multibranched compound

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7718746B2 (en) 2003-11-03 2010-05-18 Ilypsa, Inc. Anion-binding polymers and uses thereof
US7767768B2 (en) 2003-11-03 2010-08-03 Ilypsa, Inc. Crosslinked amine polymers
USRE41316E1 (en) 2004-03-22 2010-05-04 Han Ting Chang Crosslinked amine polymers
US7754199B2 (en) 2004-03-22 2010-07-13 Ilypsa, Inc. Pharmaceutical compositions comprising crosslinked amine polymer with repeat units derived from polymerization of tertiary amines
US8349305B2 (en) 2004-03-22 2013-01-08 Ilypsa, Inc. Crosslinked amine polymers
WO2017203437A1 (en) 2016-05-23 2017-11-30 Ineb - Instituto Nacional De Engenharia Biomédica Biodegradable dendritic structure, methods and uses thereof
US10858484B2 (en) 2016-05-23 2020-12-08 Ineb—Instituto Nacional De Engenharia Biomedica Biodegradable dendritic structure, methods and uses thereof
JP2017222828A (en) * 2016-06-13 2017-12-21 株式会社日本触媒 Polyalkyleneimine derivative

Also Published As

Publication number Publication date
FI19992466A (en) 2001-05-18
AU1526201A (en) 2001-06-04
FI109353B (en) 2002-07-15

Similar Documents

Publication Publication Date Title
Tremblay-Parrado et al. Click chemistry for the synthesis of biobased polymers and networks derived from vegetable oils
Billiet et al. Step-growth polymerization and ‘click’chemistry: The oldest polymers rejuvenated
EP0636156B1 (en) Dendritic based macromolecules and method of production
US10308748B2 (en) Lignin-containing polymers
MXPA02004798A (en) Hyperbranched polyol macromolecule, method of making same, and coating composition including same.
JP6022475B2 (en) Polymer raw materials and polymers
JP5114864B2 (en) Method for producing polyfunctional maleimide compound
CN105860040A (en) Hyperbranched polyether ester preparation method
WO2001038423A1 (en) Saleimide modified polypropylene imine dendrimers and a process for their preparation
US6353082B1 (en) Highly branched polyesters through one-step polymerization process
CN1100811C (en) Poly (ester-amide-ether) segmented copolymer and its preparation method and application
JPH06157727A (en) Multiple-branch cycloalkyl polyester and its production
Fischer et al. Cyclodextrins in polymer synthesis: free radical polymerization of cyclodextrin complexes with oxazoline‐functionalized vinyl monomers as guest molecules in aqueous medium
Xiao et al. Synthesis of a novel [60] fullerene pearl‐necklace polymer, poly (4, 4′‐carbonylbisphenylene trans‐2‐[60] fullerenobisacetamide)
WO2006051627A1 (en) Core/shell type nanoparticles
JP2000080107A (en) Preparation of telechelic substance, telechelic substance prepared thereby, and use thereof
JPH07188407A (en) Thermosetting polyarylate resin
Lin et al. One‐pot synthesis and characterization of hyperbranched poly (ester‐amide) s from commercially available dicarboxylic acids and multihydroxyl secondary amines
Sha et al. Chemically recyclable rosin-based polymers
CN113861400B (en) Hyperbranched polyarylester and preparation method thereof
Jiang et al. Synthesis of multi‐arm star polystyrene with hyperbranched polyester initiators by atom transfer radical polymerization
KR102124367B1 (en) Mamufacturing method of precursor for thermoset shape memory elastomer, mamufacturing method of thermoset shape memory elastomer using the precursor, and thermoset shape memory elastomer
KR101315510B1 (en) Hyper-branched polymer and process for production of the same
CN117720734A (en) Polyethylene glycol monomethyl ether-itaconic acid polyester-polyethylene glycol monomethyl ether amphiphilic block copolymer and preparation method and application thereof
US20040127638A1 (en) Acrylonitrile block copolymer and method for producing the same

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase