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降冰片烯大分子单体开环易位聚合制备PEG取代的接枝共聚物 被引量：2

Graft Copolymers Prepared by Ring-Opening Metathesis Polymerization of Poly（ethylene glycol）-Substituted Norbornene Macromonomers
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摘要 先用酯化的方法合成了含有聚乙二醇（PEG）的降冰片烯大分子单体,再用开环易位聚合方法使大分子单体聚合,得到了PEG取代的聚降冰片烯接枝共聚物.并通过凝胶渗透色谱法（GPC）研究合成的接枝共聚物分子量及分子量分布情况.结果表明：聚合物的数均分子量为1.0万～4.4万;分子量分布为1.11～1.22,并且聚合物的分子量分布随[M]/[I]的增加而变窄. This work focused on the synthesis of norbornene macromonomers with poly（ethylene glycol）（PEG） and the preparation of graft copolymer by ring-opening metathesis polymerization（ROMP） of these macromonomers.The molecular weight and polydispersity of graft copolymer were studied by gel permeation chromatography（GPC）.It was found that the molecular weight of graft copolymer was between 10 000 and 44 000 with polydispersity between 1.11 and 1.22.Moreover,the polydispersity of the polymer became narrowed with the increase of [M]/[J].
作者 董薇 张秋平 杜创 汤钧
机构地区 吉林大学化学学院 吉林化工学院材料工程系
出处 《吉林大学学报（理学版）》 CAS CSCD 北大核心 2012年第3期567-570,共4页 Journal of Jilin University:Science Edition
基金 国家自然科学基金（批准号：21074042）
关键词 聚乙二醇 接枝共聚物 开环易位聚合 分子量 分子量分布 poly（ethylene glycol）（PEG） graft copolymer ring-opening metathesis polymerization molecular weight molecular weight distribution
分类号 O631.5 [理学—高分子化学]
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参考文献12

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共引文献5

同被引文献21

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二级引证文献3

吉林大学学报（理学版）
2012年 第3期

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