| 聚丙烯酸[2,5-双(对甲氧基苯甲酰氧基)苄酯]及聚甲基丙烯酸[2,5-双(对甲氧基苯甲酰氧基)苄酯]的合成 |
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| 引用本文： | 糜七定,宛新华,周其凤. 聚丙烯酸[2,5-双(对甲氧基苯甲酰氧基)苄酯]及聚甲基丙烯酸[2,5-双(对甲氧基苯甲酰氧基)苄酯]的合成[J]. 高等学校化学学报, 2000, 21(5): 822-824 |
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| 作者姓名： | 糜七定 宛新华 周其凤 |
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| 作者单位： | 北京大学化学与分子工程学院高分子系, 北京 100871 |
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| 基金项目： | 中国博士后科学基金，国家自然科学基金!（批准号：59873001） |
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| 摘 要： | 周其凤等曾报道聚丙烯酸［２，５－双（对甲氧基苯甲酰氧基）节酯］［１］和聚甲基丙烯酸［２，５－双（对甲氧基苯甲酰氧基）苄酯］［２］的合成．但后来的研究发现，在合成单体的条件下出现的一种未见报道的异常反应［３］使产物成分复杂化，因此当时报道的聚合物可能不是聚丙烯酸［２，５－双－（对甲氧基苯甲酰氧基）苄酯］或聚甲基丙烯酸［２，５－双（对甲氧基苯甲酰氧基）苄酯］，而可能是共聚物．针对这一问题，我们重新设计了合成路线以避免发生上述副反应，成功地合成了丙烯酸或ａ－甲基丙烯酸［２，５－双－（对甲氧基苯甲酰氧基…
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| 关 键 词： | 聚丙烯酸[2 5-双(对甲氧基苯甲酰氧基)苄酯] 聚甲基丙烯酸[2 5一双(对甲氧基苯甲酰氧基)苄酯] &ldquo 甲壳型&rdquo 液晶高分子 |
| 收稿时间： | 1999-05-27 |
| 修稿时间： | : |
Synthesis of Poly-[2,5-bis(4'-methoxybenzoyloxy)benzyl acrylate]and Poly-[2,5-bis(4'-methoxybenzoyloxy)benzyl methacrylate] |
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| MI Qi-Ding,WAN Xin-Hua,ZHOU Qi-Feng. Synthesis of Poly-[2,5-bis(4'-methoxybenzoyloxy)benzyl acrylate]and Poly-[2,5-bis(4'-methoxybenzoyloxy)benzyl methacrylate][J]. Chemical Research In Chinese Universities, 2000, 21(5): 822-824 |
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| Authors: | MI Qi-Ding WAN Xin-Hua ZHOU Qi-Feng |
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| Affiliation: | Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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| Abstract: | Two monomers of 2, 5-bis (4'-methoxybenzoyloxy) benzyl acrylate and 2, 5-bis (4'-methoxy- benzoyloxy)benzyl methacrylate and their corresponding polymers were successfully synthesized. The mesomorphic behavior of both polymers was examined using differential scanning calorimetry(DSC) and polarized optical microscopy(POM). It was found that both polymers are noncrystalline with a glass transition temperature of 73. 1℃ for poly-[2, 5-bis(4'-methoxybenzoyloxyben acrylate] and 120. 3℃ for poly-[2' 5-bis (4'-methoxybenzoyloxy ) benzyl methacrylate], above which liquid crystalline state is formed. The clearing temperature of the former is 178. 3℃ and that of the latter is 172. 8 ℃. |
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| Keywords: | Poly-[2 5-bis (4'-methoxybenzoyloxy) benzyl acrylate] Poly-[2 5-bis (4'- methoxybenzoyloxy)benzyl methacrylate] Mesogen-jacketed liquid crystalline polymers |
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