| 含两种不同介晶基团的半刚性共聚酯液晶态的结构研究 |
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| 引用本文： | 刘俊秋,王晋,沈家.含两种不同介晶基团的半刚性共聚酯液晶态的结构研究[J].高分子学报,1994,0(2):129-133. |
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| 作者姓名： | 刘俊秋 王晋 沈家 |
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| 作者单位： | 吉林大学化学系 |
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| 摘 要： | 用Ｘ－光衍射，偏光显微镜及ＤＳＣ对含两种不同长度介晶基团４，４’－联苯二酚（Ⅰ）和对苯二甲酸二（对羟苯基）酯（Ⅱ）的系列共聚酯的液晶态进行了表征，据其液晶态中两种介晶单元的堆砌方式提出了可能的模型，这种模型很好地解释了液晶态的Ｘ－光衍射分布．
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| 关 键 词： | 热致液晶共聚酯，介晶基团，向列型液晶 |
| 收稿时间： | 1991-05-24 |
STUDY ON THE STRUCTURE OF SEMIRIGID THERMOTROPIC LIQUID CRYSTAL COPOLYESTERS CONTAINING TWO KINDS OF MESOGENIC GROUPS |
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| LIU Jun-qiu,WANG Jin,SHEN Jia-cong.STUDY ON THE STRUCTURE OF SEMIRIGID THERMOTROPIC LIQUID CRYSTAL COPOLYESTERS CONTAINING TWO KINDS OF MESOGENIC GROUPS[J].Acta Polymerica Sinica,1994,0(2):129-133. |
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| Authors: | LIU Jun-qiu WANG Jin SHEN Jia-cong |
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| Institution: | Department of Chemistry; Jilin University; Changchun; 130023 |
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| Abstract: | A series of semirigid main Chain thermotropic liquid crystal copolyesters containing two kinds of mesogenic groups were studied by polarizing microscopy,DSC and X-ray diffraction. The results showed that these copolyesters are typical of nematic liquid crystal structure. A possible mode about the packing of two mesogenic moiety in liquid crystal states was proposed, which accounted for the re suits. |
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| Keywords: | Thermotropic liquid crystal Copolyester mesogenic moiety Nematic liquid crystal |
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