| 新型液晶材料细菌纤维素苯甲酸酯的合成与表征 |
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| 引用本文： | 王燕,裴重华. 新型液晶材料细菌纤维素苯甲酸酯的合成与表征[J]. 化学研究, 2008, 19(2): 22-24 |
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| 作者姓名： | 王燕 裴重华 |
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| 作者单位： | 西南科技大学,材料科学与工程学院,四川,绵阳,621010;西南科技大学,材料科学与工程学院,四川,绵阳,621010 |
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| 摘 要： | 以细菌纤维素（BC）为原料，通过酯化反应制备了细菌纤维素苯甲酸酯（BBC）．用红外（FT-IR）表征了产物结构，并且通过DSC、POM和WAXD研究了产物的热致液晶织构及其性能．从DSC和POM研究得知，细菌纤维素苯甲酸酯在281．7℃-356．3℃之间可以形成近晶型液晶相．
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| 关 键 词： | 细菌纤维素 热致液晶 酯化反应 |
Synthesis and Properties of Novel Liquid Crystalline- Benzoylated Bacterial Cellulose |
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| WANG Yan,PEI Chong-hua. Synthesis and Properties of Novel Liquid Crystalline- Benzoylated Bacterial Cellulose[J]. Chemical Research, 2008, 19(2): 22-24 |
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| Authors: | WANG Yan PEI Chong-hua |
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| Affiliation: | ( School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China) |
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| Abstract: | Benzoylated bacterial cellulose(BBC) was synthesized by the esterization of baterial cellulose(BC).The characterizations of the liquid crystalline phases for BBC were investigated by differential scanning calorimetry(DSC),wide-angle X-ray diffraction(WAXD) and polarized optical microscope(POM).The results showed that BBC can form smectic liquid crystalline phase.Its glass transition temperature(tg) was 281.7 ℃ and isotropic melt transition temperature(ti) was 356.3 ℃,higher than that of the benzoylated plant cellulose respectively. |
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| Keywords: | baterial cellulose themotropic liquid crystalline esterization |
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