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    何晓燕, 张健, 黄辉, 危大福, 郑安呐. 聚苯乙烯-聚甲基丙烯酸缩水甘油酯嵌段共聚物的合成与表征[J]. 功能高分子学报, 2009, 22(2): 173-177.
    引用本文: 何晓燕, 张健, 黄辉, 危大福, 郑安呐. 聚苯乙烯-聚甲基丙烯酸缩水甘油酯嵌段共聚物的合成与表征[J]. 功能高分子学报, 2009, 22(2): 173-177.
    shu
    Synthesis and Characterization of Polystyrene-b-Poly（Glycidyl Methacrylate） Copolymer[J]. Journal of Functional Polymers, 2009, 22(2): 173-177.
    Citation: Synthesis and Characterization of Polystyrene-b-Poly（Glycidyl Methacrylate） Copolymer[J]. Journal of Functional Polymers, 2009, 22(2): 173-177.
    shu

    聚苯乙烯-聚甲基丙烯酸缩水甘油酯嵌段共聚物的合成与表征

    Synthesis and Characterization of Polystyrene-b-Poly（Glycidyl Methacrylate） Copolymer

      摘要
    • 摘要: 在常压、惰性气体保护下，以正丁基锂引发苯乙烯进行阴离子聚合，并用少量甲基丙烯酸缩水甘油酯（GMA）进行终端共聚，制得了侧基含有环氧基团的聚苯乙烯聚甲基丙烯酸缩水甘油酯嵌段共聚物。用GPC、FT-IR、1H-NMR及盐酸二氧六环银量法对共聚物进行了分析，并考察了GMA用量、终端共聚的反应温度及时间对环氧侧基数量的影响。结果表明：在少量四氢呋喃和氯化锂的存在下，1, 1-二苯基乙烯（DPE）“盖帽”的聚苯乙烯阴离子活性种在甲苯溶剂中可引发GMA单体聚合反应，所得聚合物分子链中环氧侧基数量可根据需要进行调节。适宜的终端共聚反应温度和时间分别为-65 ℃和0.5 min。

       

      Abstract: The living poly(styryl)lithium was synthesized by anionic polymerization under argon atmosphere. Polystyrene-b-poly(glycidyl methacrylate) copolymers were prepared by the copolymerization reaction of poly(styryl)lithium with glycidyl methacrylate (GMA),which were characterized with GPC, FT-IR, 1H-NMR and hydrochloric aciddioxane argentimetric method. Effects of GMA dosage, copolymerization duration and temperature on the number of side epoxy group were also studied. Results show that poly(styryl)lithium endcapped with 1,1-diphenylethylene (DPE) can initiate GMA in toluene in the presence of LiCl and a small amount of THF, and the number of side epoxy group can be adjusted. The optimal reaction temperature is -65 ℃ and the best termination time is 0.5 min.

       

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