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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 41, Number 3
JKCSEZ 41(3)
June 20, 1997 

 
Title
Transesterification Reaction between Liquid Crystalline Polyester and Poly(butylene terephthalate)

액정 폴리에스테르와 Poly(butylene terephthalate)의 에스테르 교환반응
Author
Do Soo Han, Doo Hwa Kim, Sung Dong Cho, Byung Wook Jo

한도순, 김두화, 조성동,조병욱
Keywords
Abstract
에스테르 교환반응은 고분자 블랜드의 가공시 자체 상용화제를 만들 수 있어 폴리에스테르의 공업적제조에 이용되어질 수 있다. 따라서 에스테르 교환반응에 대한 연구의 일환으로서 열방성 액정고분자인 TR-4,6(poly(tetramethylene-4,4'-terephthaloyldioxydibenzoate-co-hexametylene-4,4'-terephthaloyldioxydibenzoate)를 합성하게 되었으며 이것을 엔지니어링 플라스틱인 폴리부틸렌테레프탈레이트(PBT)와 블랜딩을 하였다. 이 두 구성고분자 사이의 에서ㅡ테르 교환반응은 IR, DSC, 및 13C-NMR에 의한 통계적 처리방법에 의하여 분석하였으며, 교환반응 진행속도와 모노머의 반복단위 성려분포도 조사 연구하였다.

The transesterification reaction could be used to the technical production as it forms an in-situ compatibilizer during the processing of polymer blends. Thus, TR-4,6(poly(tetramethylene-4,4'-terephthaloyldioxydibenzoate-co-hexametylene-4,4'-terephthaloyldioxydibenzoate), one of thermotropic liquid crystalline polymers was synthesized and was blended with PBT(polybutylene terephthalate), one of engineering plastics, to study the transesterification reaction. The transesterification reactions between two components, TR-4,6 and PBT, were monitored by IR, DSC and 13C NMR and analyzed by a statistical treatment method. Also, the reaction rates and the sequence distributions of repeating unit were (calculated and) invesitigated.

Page
157 - 165
Full Text
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