四甲基乙二胺

系統識別號 640594 篇　名 N，N，N′N′-四甲基乙二胺／CuBr2为催化体系的反向原子转移自由基聚合研究 並列篇名 Reverse Atom Transfer Radical Polymerizations Using N, N, N′, N′-Teramethylethylendiamin/CuBr2 as the Catalyst 作　者 潘凯(Kai Pan);江龙(Long Jiang);张娟(Juan Zhang);淡宜(Yi Dan) 刊　名 四川大學學報(工程科學版) 卷期／出版年月 39卷1期(2007/01) 頁次 104-107 資料語文 中文 摘要 以偶氮二异丁睛(AIBN)为引发剂，N，N同，N′，N′-四甲基乙二胺(TMEDA)/CuBr2为催化剂，二甲苯为溶剂，分别进行了甲基丙烯酸甲酯(MMA)和丙烯酸丁酯(BA)的反向原子转移自由基聚合(RATRP)。聚合转化率和聚合物分子量及分子量分布测定结果表明，在非极性溶剂二甲苯中MMA的聚合，聚合物的数均分子量随转化率变化的线性关系较好，分子量分布较窄，聚合可控性较好；而BA的聚合可控性较差。此外，还对MMA最终聚合产物进行了1H-NMR分析，结果表明该反应属于RATRP反应机理，所得产物为无规立构结构。

The reverse atom transfer radical polymerizations of methyl methacrylate (MMA) and butyl acrylate (BA) were carried out at 80 using N, N, N′, N′-teramethylethylendiamin (TMEDA)/CuBr2 as the catalyst, AIBN as initiator, and xylene as solvent. GPC results and monomer conversion showed that the polymerization of MMA represents well controlled, the number-average molecular weight increases linearly with monomer conversion and during the whole polymerization, the polydispersities are low, however the polymerization of BA is uncontrolled. The resultant PMMA obtained from TMEDA/CuBr2 system was characterized by 1H-NMR spectroscopy, and the result showed that the polymerization kinetic is RATRP, and thepolymer is random structure.

關鍵詞 反向原子转移自由基聚合,N,N,N′,N′-四甲基乙二胺,可控聚合;reverse atom transfer radical polymerization,N, N, N′, N′-teramethylethylendiamin,controlled polymerization CEPS分類 學科別>應用科學>綜合