Three-Arm Star Ring Opening Metathesis Polymers via Alkyne-Azide Click Reaction
Three-Arm Star Ring Opening Metathesis Polymers via Alkyne-Azide Click Reaction
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DOI：
10.1002/pola.23324
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发表时间：
2009-05-01
影响因子：
--
通讯作者：
Tunca, Umit
中科院分区：
文献类型：
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作者：
Dag, Aydan;Durmaz, Hakan;Tunca, Umit
将点击化学策略成功地应用于三臂星星（A（3））开环易位聚合物的制备。使用第一代Grubbs催化剂通过开环易位聚合获得的明确定义的单叠氮化物末端官能化的聚（N-乙基氧杂降冰片烯）和聚（N-丁基氧杂降冰片烯）与三烷基炔核简单地点击，从而提供目标星星聚合物的合成。通过核磁共振光谱和凝胶渗透色谱（GPC）对所获得的星星聚合物进行表征。GPC曲线的解卷积分析表明，形成星星的点击反应效率强烈地依赖于ROM聚合物的化学性质和分子量。(C)2009 Wiley Periodicals，Inc.聚合物科学杂志A部分：聚合物化学47：2344-2351，2009
The click chemistry strategy is successfully applied for the preparation of three-arm star (A(3)) ring opening metathesis polymers. A well-defined monoazide end-functionalized poly(N-ethyl oxanorbornene) and a poly(N-butyl oxanorbornene) obtained via ring opening metathesis polymerization using first generation Grubbs' catalyst are simply clicked with the trisalkyne core affording the synthesis of target star polymers. The obtained star polymers are characterized via nuclear magnetic resonance spectroscopy and gel permeation chromatography (GPC). The deconvolution analyses of GPC traces reveal that the click reaction efficiency for the star formation strongly depends on the chemical nature and the molecular weight of ROM polymers. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2344-2351, 2009