引用本文:
Shang Er WANG, Zhi Shen MO, Hong Fang ZHANG, Zhi Liu FENG. SYNTHESIS OF THERMOTROPIC LIQUID CRYSTAL AROMATIC COPOLYESTERS AND COPOLY (ESTER-AMIDE)S CONTAINING DI (ETHYLOXY-ETHER) AS THE SPACER[J]. Chinese Chemical Letters,
1994, 5(9): 795-796.
Citation: Shang Er WANG, Zhi Shen MO, Hong Fang ZHANG, Zhi Liu FENG. SYNTHESIS OF THERMOTROPIC LIQUID CRYSTAL AROMATIC COPOLYESTERS AND COPOLY (ESTER-AMIDE)S CONTAINING DI (ETHYLOXY-ETHER) AS THE SPACER[J]. Chinese Chemical Letters, 1994, 5(9): 795-796.
Citation: Shang Er WANG, Zhi Shen MO, Hong Fang ZHANG, Zhi Liu FENG. SYNTHESIS OF THERMOTROPIC LIQUID CRYSTAL AROMATIC COPOLYESTERS AND COPOLY (ESTER-AMIDE)S CONTAINING DI (ETHYLOXY-ETHER) AS THE SPACER[J]. Chinese Chemical Letters, 1994, 5(9): 795-796.
SYNTHESIS OF THERMOTROPIC LIQUID CRYSTAL AROMATIC COPOLYESTERS AND COPOLY (ESTER-AMIDE)S CONTAINING DI (ETHYLOXY-ETHER) AS THE SPACER
摘要:
Flexible di(ethyloxy-ether) was introduced into the aromatic copolyesters and copoly(ester-amide)s to reduce the melting point of resulting polymers.The liquid crystallinity was proved by PLM observation and WAXD study.The melting point was greatly reduced,to 200℃ or even lower in some cases,and the molecular weight was satisfactorily high as reflected by inherent viscosity.The copolyester showed better crystallinity and liquid crystallinity than corresponding copoly(ester-amide) with similar monomer composition.
English
SYNTHESIS OF THERMOTROPIC LIQUID CRYSTAL AROMATIC COPOLYESTERS AND COPOLY (ESTER-AMIDE)S CONTAINING DI (ETHYLOXY-ETHER) AS THE SPACER
Abstract:
Flexible di(ethyloxy-ether) was introduced into the aromatic copolyesters and copoly(ester-amide)s to reduce the melting point of resulting polymers.The liquid crystallinity was proved by PLM observation and WAXD study.The melting point was greatly reduced,to 200℃ or even lower in some cases,and the molecular weight was satisfactorily high as reflected by inherent viscosity.The copolyester showed better crystallinity and liquid crystallinity than corresponding copoly(ester-amide) with similar monomer composition.
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