| 光响应性A_2BA_2型两亲嵌段共聚物的合成与表征 |
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| 引用本文： | 唐新德,韩念凤,周德杰. 光响应性A_2BA_2型两亲嵌段共聚物的合成与表征[J]. 高分子材料科学与工程, 2009, 0(12) |
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| 作者姓名： | 唐新德 韩念凤 周德杰 |
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| 作者单位： | 山东交通学院新材料研究所; |
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| 基金项目： | 国家自然科学基金资助项目(20134020); 山东省教育厅科技计划项目(J05D11) |
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| 摘 要： | 设计合成了具有光响应性的A2BA2型两亲嵌段共聚物。聚乙二醇(PEG600)与2,2-二氯乙酰氯通过酯化反应制备结构对称的四官能团大分子引发剂,引发偶氮苯单体6-[4-(4-乙氧基苯基偶氮)酚氧基]己基甲基丙烯酸酯(AZO6Et)的原子转移自由基聚合(ATRP)反应。利用凝胶色谱(GPC)与核磁共振氢谱(1H-NMR)表征了产物的分子量与结构组成,利用差示扫描量热法(DSC)与偏光显微镜(POM)对聚合物的热行为及液晶性进行了表征。在紫外/可见光照射下聚合物溶液呈现明显的光响应性。
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| 关 键 词： | 光响应性 A2BA2型 两亲嵌段共聚物 液晶性 原子转移自由基聚合 |
Synthesis and Characterization of Photo-Responsive A_2BA_2-Type Amphiphilic Block Copolymer |
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| TANG Xin-de,HAN Nian-feng,ZHOU De-jie. Synthesis and Characterization of Photo-Responsive A_2BA_2-Type Amphiphilic Block Copolymer[J]. Polymer Materials Science & Engineering, 2009, 0(12) |
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| Authors: | TANG Xin-de HAN Nian-feng ZHOU De-jie |
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| Affiliation: | TANG Xin-de,HAN Nian-feng,ZHOU De-jie (Institute of New Materials,Shandong Jiaotong University,Jinan 250023,China) |
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| Abstract: | Photo-responsive A2BA2-type amphiphilic block copolymer containing azobenzene was designed and synthesized.Macroinitiator prepared by the esterification between poly(ethylene oxide)(PEG) and 2,2-dichloroacetyl chloride was utilized to initiate the atom transfer radical polymerization(ATRP) of 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate(AZO6Et).The resulting macroinitiator and the block copolymer were characterized by 1H-NMR,gel permeation chromatography(GPC).Differential scanning calorimeter(DSC) and... |
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| Keywords: | photo-responsive A2BA2-type amphiphilic block copolymer liquid crystalline property atom transfer radical polymerization |
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