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星形聚氧乙烯及星形杂臂氧化乙烯-苯乙烯共聚物的合成
Synthesis and characterization of star-shaped poly(ethylene oxide) and miktoarm star ethylene oxide-styrene copolymers
【摘要】 以原子转移自由基偶联法合成了多臂星形聚合物S-PEO和星形杂臂共聚物PEO-PS。以傅立叶红外光谱(FT-IR)和核磁共振(1H NMR)分析方法确定了产物的结构。以GPC分析测试了产物的分子量和分子量分布。GPC分析结果表明所得聚合物分子量增大,分子量分布窄,偶联反应效率可高达99%以上。
【Abstract】 Some multi-arm poly(ethylene oxide) star polymers(S-PEO) and miktoarm star ethylene oxide-styrene copolymers(PEO-PS)were synthesized by coupling reaction atom transfer radical polymerization(ATRP).Their structures were confirmed by Fourier Transform Infrared(FT-IR) spectra,proton nuclear resonance(1H NMR) and gel permeation chromatograph(GPC) spectroscopy.The results of GPC spectroscopy showed that the average molecular weights of resulted polymers increased with the narrow polydispersities(<1.3) and thecoupling efficiency reached up to 99%.
【关键词】 原子转移自由基法;
星形聚合物;
杂臂星状共聚物;
PEO;
PS;
【Key words】 atom transfer radical polymerization; star polymer; miktoarm star copolymer; polystyrene; poly(ethylene oxide);
【Key words】 atom transfer radical polymerization; star polymer; miktoarm star copolymer; polystyrene; poly(ethylene oxide);
【基金】 国家自然科学基金资助项目(20374042);湖南省自然科学基金资助项目(04JJ3044);湖南省教育厅科研项目资助(03C126)
- 【文献出处】 化学研究与应用 ,Chemical Research and Application , 编辑部邮箱 ,2006年05期
- 【分类号】TQ316.322
- 【被引频次】2
- 【下载频次】165