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Transesterification Reaction between Liquid Crystalline Polyester and Poly(butylene terephthalate)
Transesterification Reaction between Liquid Crystalline Polyester and Poly(butylene terephthalate)
Journal of the Korean Chemical Society. 1997. Mar, 41(3): 157-165
  • Published : March 00, 1997
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Han, Do Soo
Kim, Doo Hwa
Cho, Sung Dong
Jo, Byung Wook

Abstract
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 $^{13}C-NMR$ and analyzed by a statistical treatment method. Also, the reaction rates and the sequence distributions of repeating unit were (calculated and) invesitigated.