引用本文:
De Wen DONG, Yu Shan NI. SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS CONTAINING BIS(4-HYDROXYPHENYL) METHANONE(Ⅴ)[J]. Chinese Chemical Letters,
1995, 6(11): 951-954.
Citation: De Wen DONG, Yu Shan NI. SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS CONTAINING BIS(4-HYDROXYPHENYL) METHANONE(Ⅴ)[J]. Chinese Chemical Letters, 1995, 6(11): 951-954.
Citation: De Wen DONG, Yu Shan NI. SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS CONTAINING BIS(4-HYDROXYPHENYL) METHANONE(Ⅴ)[J]. Chinese Chemical Letters, 1995, 6(11): 951-954.
SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS CONTAINING BIS(4-HYDROXYPHENYL) METHANONE(Ⅴ)
摘要:
A new series of fully aromatic thermotropic liquid crystalline copolyesters were synthesized by thermal polycondensation of p-hydroxybenzoic acid [PHB],terephthalic acid [TPA],resorcinol [RES] and bis (4-hydroxyphenyl) methanone [BHP].The DSC traces of copolyesters exhibited two or three endotherms,the low temperature endotherm(Tm) of which indicated the transition from solid state to anisotropic phase.Observation under polarizing microscope and WAXD measurements suggested that the LC-phase formed immediately above Tm had a nematic character.
English
SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTERS CONTAINING BIS(4-HYDROXYPHENYL) METHANONE(Ⅴ)
Abstract:
A new series of fully aromatic thermotropic liquid crystalline copolyesters were synthesized by thermal polycondensation of p-hydroxybenzoic acid [PHB],terephthalic acid [TPA],resorcinol [RES] and bis (4-hydroxyphenyl) methanone [BHP].The DSC traces of copolyesters exhibited two or three endotherms,the low temperature endotherm(Tm) of which indicated the transition from solid state to anisotropic phase.Observation under polarizing microscope and WAXD measurements suggested that the LC-phase formed immediately above Tm had a nematic character.
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