PROCESS FOR PREPARATION OF BLOCK COPOLYMER

• Main Authors: JEONG YONGBOK, CHOI JONG YOUNG, CHOI JUNG YUN, LEE YEONJU, LEE HOKEUN, KIM CHUL WOONG
• Format: Patent
• Language: English; Korean
• Published: 14.03.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention provides a process for preparing a block copolymer, which prepares a block copolymer by solid-phase polymerization of an alkyl polylactic acid prepolymer with a poly(3-hydroxypropionate) prepolymer, thereby preparing a block copolymer having excellent performance even under low temperature and low vacuum conditions, compared to the conventional process for preparing a block copolymer. 본 발명에서는 블록 공중합체의 제조시 알킬 폴리(3-하이드록시프로피오네이트) 프리폴리머를 폴리락트산 프리폴리머와 고상 중합함으로써, 종래의 블록 공중합체의 제조 방법과 비교하여, 저온 및 저진공 조건에서도 우수한 물성을 갖는 블록 공중합체의 제조가 가능한 제조방법이 제공된다.