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- W1567152278 abstract "设计合成了手性单体(+)-甲基丙烯酸{2,5-双[4′-(( S )-2-甲基丁氧基)苯基]苯基}酯, 并进行了自由基溶液聚合. 相比于单体, 聚合物的比旋光度有显著的同向增长, 且在其圆二色光谱上对应于三联苯侧基以及酯基的吸收区域呈现明显的Cotton 效应, 说明其主链可能采取某一旋向占优的螺旋构象. 研究了聚合条件对聚合物旋光性质的影响. 结果表明, 采用极性大的芳香族溶剂或增加单体浓度有利于获得旋光度大的聚合物; 随聚合温度增加, 聚合物旋光度先增加后减小, 在80 ℃时聚合达到最大值. 该聚合物比甲基丙烯酸三芳基甲基酯类光学活性螺旋链聚合物具有更好的化学结构稳定性和立体结构稳定性." @default.
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- W1567152278 date "2012-05-01" @default.
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- W1567152278 title "Synthesis and helix-sense-selective free radical polymerization of (+)-{2,5-bis[4′-((<italic>S</italic>)-2-methylbutoxy)phenyl]phenyl}methacrylate" @default.
- W1567152278 doi "https://doi.org/10.1360/032011-754" @default.
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