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Synthesis and photoresponsive behavior of the high-T_g azobenzene polymers via RAFT polymerization

机译：RAFT聚合制备高T_g偶氮苯聚合物及其光响应行为

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摘要

Well-defined photo-responsive alternating copolymers, poly(4-(N-maleimido)azobenzene-alt-styrene)s (PMSts), were successfully synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. A divinyl monomer was used in this polymerization to prepare high molecular weight azobenzene polymers. These polymers had good solubility in most organic solvents, formed films well, and had high glass transition temperatures (T_g - 174-250 ℃) and were heat resistant (T_d > 320 ℃). The photo-induced trans-cis isomerization of the copolymers was examined in chloroform solution. Surface-relief-gratings (SRGs) formed on the polymer films were also investigated using illumination from a linearly polarized Kr~+ laser beam.
机译：通过可逆的加成-断裂链转移（RAFT）聚合成功地合成了定义明确的光响应性交替共聚物，聚（4-（N-马来酰亚胺基）偶氮苯-alt-苯乙烯）（PMSts）。在该聚合反应中使用二乙烯基单体以制备高分子量的偶氮苯聚合物。这些聚合物在大多数有机溶剂中具有良好的溶解性，形成良好的膜，并具有较高的玻璃化转变温度（T_g-174-250℃），并且具有耐热性（T_d> 320℃）。在氯仿溶液中检查了共聚物的光诱导反式-顺式异构化。还使用线偏振Kr〜+激光束的照射研究了在聚合物膜上形成的表面浮雕光栅（SRG）。

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  • 来源
    《Reactive & Functional Polymers》 |2010年第7期|P.456-462|共7页
  • 作者

    Xiaoqiang Xue; rnJian Zhu; rnZhengbiao Zhang; rnNianchen Zhou; rnXiulin Zhu;

  • 作者单位

    Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science of Soochow University, Suzhou 215006, China;

    rnKey Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science of Soochow University, Suzhou 215006, China;

    rnKey Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science of Soochow University, Suzhou 215006, China;

    rnKey Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science of Soochow University, Suzhou 215006, China;

    rnKey Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science of Soochow University, Suzhou 215006, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    surface-relief-grating (SRG); reversible addition-fragmentation chain transfer (RAFT); azo polymer; photoresponsive; alternating copolymerization;

    机译：表面浮雕光栅（SRG）;可逆加成-断裂链转移（RAFT）;偶氮聚合物光敏交替共聚;

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