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1. (KR1020080032029) POLY(3-HYDROXYALKANOATE) BLOCK COPOLYMER HAVING A SHAPE MEMORY EFFECT AND CONTAINING 3HB AND 3HV AS REPEATING UNITS

Office : Republic of Korea
Application Number: 1020077028885 Application Date: 11.12.2007
Publication Number: 1020080032029 Publication Date: 14.04.2008
Publication Kind : A
IPC:
C08G 63/91
C08G 63/00
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
91
Polymers modified by chemical after-treatment
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
CPC:
C08F 293/00
Applicants: LG CHEM. LTD.
주식회사 엘지화학
Inventors: RHEE, YOUNG HA
이영하
KIM, YOUNG BAEK
김영백
CHUNG, CHUNG WOOK
정정욱
YOON, JOO SEOG
윤주석
Agents: 손창규
Priority Data: 1020050059907 04.07.2005 KR
Title: (EN) POLY(3-HYDROXYALKANOATE) BLOCK COPOLYMER HAVING A SHAPE MEMORY EFFECT AND CONTAINING 3HB AND 3HV AS REPEATING UNITS
(KO) 형상기억능을 가진 폴리(3-히드록시알카노에이트) 블록공중합체
Abstract: front page image
(EN) PURPOSE: A poly(3-hydroxyalkanoate) block copolymer is provided to realize a temperature-sensitive shape memory effect, alignment-induced rubbery elasticity and rapid shape recovering effect while maintaining biodegradability and biocompatibility. CONSTITUTION: A poly(3-hydroxyalkanoate) block copolymer comprises, as repeating units, a plurality of 3-hydroxybutyrate(2HB) blocks represented by the following formula 1 and a plurality of 3-hydroxyvalerate(3HV) represented by the following formula 2, and has alignment-induced rubbery elasticity and a temperature-sensitive shape memory effect. In the formulae, each of m and n is a number of 2 or higher. In the block copolymer, 3HV is present in an amount of 10-90 mol% based on the total monomers forming the copolymer. ©KIPO 2008
(KO) 본 발명은 반복단위로서 화학식 1의 3-히드록시부틸레이트(3HB) 블록과 화학식 2의 3-히드록시발러레이트(3HV) 블록을 다수 개 포함하고 있으며, 선택적으로 탄소수 6 개 이상의 히드록시 에시드 반복기를 포함하는, 배향-유도 고무 탄성과 온도 감응 형상기억능을 가지는 것을 특징으로 하는 PHA 블록 공중합체를 제공한다. 이러한 PHA 블록 공중합체는 배향-유도 고무 탄성과 빠른 형상 회복속도의 형상기억능을 가지고 있으므로 PHA 고유의 특성인 생분해성 및 생체적합성 등의 물성과 함께 다양한 용도로 적용될 수 있다.
Also published as:
JP2009500468US20080241899WO/2007/004777