Citation: Yong WANG, Da Cheng WU, Rui Xia LI. EFFECT OF ANNEALING ON MICROSTRUCTURE OF AROMATIC LIQUID CRYSTALLINE COPOLYESTERS[J]. Chinese Chemical Letters, ;1996, 7(1): 73-74. shu

EFFECT OF ANNEALING ON MICROSTRUCTURE OF AROMATIC LIQUID CRYSTALLINE COPOLYESTERS

Textile College, Sichuan Union University, Chengdu, 610065

Received Date: 11 July 1995

The effects of thermal treatment on microstructure of the polyesters were studied.Annealing below Tc-n,physical diffusion processes dominate to yield an increasing crystallinity along with increased molecular weight,transesterification reactions are limited to the end groups and the microstructure had not changed.Annealing near Tc-n,chemical processes dominate and simultaneously make the microdomains ordered more perfectly.Analysis by ¹³C NMR proved that interchain transesterification had occurred.
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