POLYMERIZATION METHOD FOR PREPARING BLOCK COPOLYMER BY INSERTING ALKYLTHIOETHER INTO BIS(TRI)THIOCARBONATE-TERMINATED POLYMER BY ALKALI-ASSISTED CATALYSIS

WIPO Patent Application WO/2020/150970

A1

A polymerization method for preparing a block copolymer by inserting alkylthioether into a bis(tri)thiocarbonate-terminated polymer by alkali-assisted catalysis. An organic base is added as a cocatalyst to form a catalyst system with a reported phase transfer catalyst such as tetraphenylphosphine chloride and tetraphenylamine chloride; and the catalyst system catalyzes a thioester terminal group-containing template compound or polymer and a cyclic thioether-containing monomer to undergo insertion polymerization, so as to obtain a high-molecular-weight homopolymerized or block copolymer. The polymerization method has the beneficial effects that for an insertion reaction initiated by a template compound, the monomer conversion rate is increased to 80% or more; and when the molecular weight of the template polymer is greater than 2500 g/mol, insertion polymerization may still be successfully carried out, and the monomer conversion rate is greater than 80%. The block polymer synthesized by the method has a special phase topological structure, may greatly improve the amorphous state of a polymer, and has a wide application prospect in the fields of self-healing materials, intelligent materials, self-assembly, biopolymers, drug sustained release and the like.

JPH02182726	POLYPHENYLENE SULFIDE COPOLYMER
JPS63254132	MOLDED PRODUCT OF POLYARYLENE RESIN
JPH05501732	INDUSTRIAL APPLICABILITY: A method for producing copoly (allylene sulfide) having a reduced amount of disulfide groups.

ZONG LISHUAI (CN)
SYBRAND VAN DER ZWAAG (CN)
ATSUSHI NAGAI (CN)
JIAN XIGAO (CN)
WANG JINYAN (CN)
TANG MU (CN)

PCT/CN2019/073008

July 30, 2020

January 24, 2019

Click for automatic bibliography generation  

UNIV DALIAN TECH (CN)
DELFT UNIV OF TECHNOLOGY (NL)

C08G75/06; C08G81/00

CN105992789A	2016-10-05
CN1896120A	2007-01-17
EP3192801A1	2017-07-19
EP2383245A2	2011-11-02
CN104817697A	2015-08-05
CN105008427A	2015-10-28
US8466220B2	2013-06-18
CN107163251A	2017-09-15
CN1651486A	2005-08-10

View/Download PDF      PDF Help

Previous Patent: DIALLYL PHTALATE MONOMER SYNTHESIS METHOD

Next Patent: EXTENSION MODULE FOR INDEPENDENTLY STORING CALIBRATION DATA, COMPONENT, AND COMPONENT CALIBRATION ME...