STUDIES ON THE SEQUENCE STRUCTURE OF TPA/EG/PHB LIQUID CRYSTALLINE COPOLYESTERS

STUDIES ON THE SEQUENCE STRUCTURE OF TPA/EG/PHB LIQUID CRYSTALLINE COPOLYESTERS

In this paper, the sequence structure of TPA/EG/PHB liquid crystalline copolyesters made from different synthetic methods has been studied by ~1H-NMR with the help of computer program of processing peaks. The results showed that the ether bonds were not observed in TPA./EG/PHB copolyesters and the s...

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Veröffentlicht in:Chinese journal of polymer science 1992, Vol.10 (4), p.304-310
1. Verfasser: 龚烈忠 王晓工 刘德山 周其庠
Format: Artikel
Sprache:eng
Schlagworte:
Copolyester
Crystalline
Liquid
PET/xPHB
Sequence
Structure
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Zusammenfassung:In this paper, the sequence structure of TPA/EG/PHB liquid crystalline copolyesters made from different synthetic methods has been studied by ~1H-NMR with the help of computer program of processing peaks. The results showed that the ether bonds were not observed in TPA./EG/PHB copolyesters and the synthetic process had a great effect on their sequence structure. Under certain conditions, the high,random TPA/EG/PHB copolyesters which were considered to have higher performances than PET/xPHB could be obtained.
ISSN:0256-7679
1439-6203