| 对羟基苯甲酸与对苯二甲酸乙二酯的共聚物研究 |
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| 引用本文： | 张广利,阎丰琪.对羟基苯甲酸与对苯二甲酸乙二酯的共聚物研究[J].高分子学报,1996(1):77-81. |
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| 作者姓名： | 张广利 阎丰琪 |
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| 作者单位： | 北京大学化学系 |
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| 摘 要： | 对羟基苯甲酸与对苯二甲酸乙二酯的共聚物研究张广利，阎丰琪，李勇，王震，潘景岐，张鸿志（北京大学化学系北京１００８７１）关键词液晶共聚酯，ＰＥＴ／ＰＨＢ共聚脂，序列分布Ｊａｃｂｏｎ和ＫｕｈｆｕＪ’ｌ于７０年代报道了对羟基苯甲酸（ＰＨＢ）一对苯二甲酸乙二...
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| 关 键 词： | 液晶共聚酯，PET／PHB共聚脂，序列分布 |
STUDIES ON LIQUID CRYSTALLINE COPOLYESTERS OF p -HYDROXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE) |
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| ZHANG Guangli,YAN Fengqi,LI Yong,WANG Zhen,PAN Jingqi,ZHANG Hongzhi.STUDIES ON LIQUID CRYSTALLINE COPOLYESTERS OF p -HYDROXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE)[J].Acta Polymerica Sinica,1996(1):77-81. |
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| Authors: | ZHANG Guangli YAN Fengqi LI Yong WANG Zhen PAN Jingqi ZHANG Hongzhi |
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| Abstract: | iquid Crystalline copolyesters containing poly(ethylene terephthalate)(PET) and high proportion of p-hydroxybenzoic acid(PHB) moieties up to 80 mol%,were prepared by conventional(one-step)and two-step polycondenstion processes and the products were studied by visual observation under polarizing microscope thermomechanical analysis and 1H-NMR spectroscopy . The copolyester prepared by one-step process has a blockmicrostructure,as verified by 1H-NMR study.Whereas a more random copolyester withan obviously decreased amount of insoluble fraction was obtained by two-step process.Their soluble fractions have a random sequence distribution and could be dissolved in p-chlorophenol and tetrachloroethane solvent mixture even if the PHB moiety content is as high as 80 mol%. |
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| Keywords: | Liquid crystalline copolyester PET/PHB copolyester Sequence distribution |
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