| SYNTHESIS AND CHARACTERIZATION OF AROMATIC LIQUID CRYSTALLINE COPOLYESTERS WITH REGULAR SEQUENCE STRUCTURE |
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| 作者姓名： | 林庆煌 王慧芬 刘德山 周其庠 |
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| 作者单位： | Department of Chemical Engineering，Tsinghua University，Beijing，100084，Department of Chemical Engineering，Tsinghua University，Beijing，100084，Department of Chemical Engineering，Tsinghua University，Beijing，100084，Department of Chemical Engineering，Tsinghua University，Beijing，100084 |
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| 摘 要： | Several novel aromatic liquid crystalline copolyesters with regular sequence structure were prepared by melt Sehotten-Baumann polycondensation via complex monomer. Polarizing microscope with hot stage, thermal analysis and X-ray diffraction were used to investigate the structure and properties of the copolyesters. The effects of structural units, such as flexible spacer, noncolinear meta-linked phenylene unit, crankshaft unit, kink with flexible bridging unit and various substituted benzene rings on melting temperature of aromatic copolyesters were studied and discussed on the basis of crystalline structure of the polymers.
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| 收稿时间： | 1989-04-26 |
SYNTHESIS AND CHARACTERIZATION OF AROMATIC LIQUID CRYSTALLINE COPOLYESTERS WITH REGULAR SEQUENCE STRUCTURE |
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| LIN Qinghuang,WANG Huifen,LIU Deshan,ZHOU Qixiang.SYNTHESIS AND CHARACTERIZATION OF AROMATIC LIQUID CRYSTALLINE COPOLYESTERS WITH REGULAR SEQUENCE STRUCTURE[J].Chinese Journal of Polymer Science,1990,0(3):240-246. |
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| Authors: | LIN Qinghuang WANG Huifen LIU Deshan ZHOU Qixiang |
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| Institution: | Department of Chemical Engineering; Tsinghua University; Beijing |
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| Abstract: | Several novel aromatic liquid crystalline copolyesters with regular sequence structure were prepared by melt Sehotten-Baumann polycondensation via complex monomer. Polarizing microscope with hot stage, thermal analysis and X-ray diffraction were used to investigate the structure and properties of the copolyesters. The effects of structural units, such as flexible spacer, noncolinear meta-linked phenylene unit, crankshaft unit, kink with flexible bridging unit and various substituted benzene rings on melting temperature of aromatic copolyesters were studied and discussed on the basis of crystalline structure of the polymers. |
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| Keywords: | Aromatic copolyester Thermotropic liquid crystal Melting temperature Structural unit |
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