| RX/CuX/bpy催化体系中PEO大单体与PMMA接枝共聚物的合成与表征 |
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| 引用本文： | 冯松,李庆海,杜宝辉,沈良骏.RX/CuX/bpy催化体系中PEO大单体与PMMA接枝共聚物的合成与表征[J].安徽师范大学学报(自然科学版),2001,24(3):231-235,238. |
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| 作者姓名： | 冯松 李庆海 杜宝辉 沈良骏 |
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| 作者单位： | 安徽师范大学化学与材料科学学院, |
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| 基金项目： | China Skloche PEK Laboratory, Anhui Province Education Foundation;97415002; |
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| 摘 要： | 本工作以正丁基溴为引发剂,卤化亚铜／联吡啶（bpy）为催化剂,研究了甲基丙烯酸甲酯（MMA）与末端为丙烯酰胺基的聚氧化乙烯（PEO）大单体的原子转移自由基聚合（ATRP）反应,得到了实测分子量与理论分子量相近,分子量分布较窄,有预期结构的接枝共聚物,用IR,1HNMR,VPO,GPC,DSC等进行了表征,并对共聚物的组成和分子量受单体总浓度、投料比、引发剂及反应时间的影响进行了讨论。
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| 关 键 词： | PEO大单体 甲基丙烯酸甲酯 原子转移自由基共聚 接枝共聚物 合成 聚氧化乙烯 卤化亚铜／联吡啶催化剂 |
| 文章编号： | 1001-2443(2001)03-0231-05 |
CHARACTERIZATION AND SYNTHESIS OF PEO-gPMMA COPOLYMER IN RX/CuX/BPY CATALYTICAL SYSTEM |
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| FENG Song,LI Qing-hai,DU Bao-hui,SHEN Liang-jun.CHARACTERIZATION AND SYNTHESIS OF PEO-gPMMA COPOLYMER IN RX/CuX/BPY CATALYTICAL SYSTEM[J].Journal of Anhui Normal University(Natural Science Edition),2001,24(3):231-235,238. |
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| Authors: | FENG Song LI Qing-hai DU Bao-hui SHEN Liang-jun |
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| Abstract: | In this paper, the potassium acrylimido was used for the first time as anionic poly (ethylene oxide) macromonomer has been synthesized. On the basis of that, the atom transfer radical polymerization of PMMA and PEO macromonomer in the presence of n-BuBr /CuX /bpy was investigated in detail .The obtained graft polymer has an expected structure, its molecular weight distribution is narrow. The average molecular weight could be controlled in hundreds of thousands. Purified polymer was characterized with IR, 1HNMR, VPO, GPC, DSC. The effects of total monomer concentration, charging ratio of PEO macromonomer to PMMA, amount of initiator and reaction time on the composition and average molecular weight of copolymer, was additionally suggested a possible "active" center . |
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| Keywords: | PEO macromonomer MMA ATRP graft copolymer |
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