Living polymerization of primary alkyl acrylates with t-butyllithium/bulky aluminum Lewis acids
Living polymerization of primary alkyl acrylates with t-butyllithium/bulky aluminum Lewis acids
复制标题
丙烯酸伯烷基酯与叔丁基锂/大块铝路易斯酸的活性聚合
DOI：
10.1016/s0032-3861(02)00461-5
复制
发表时间：
2002
期刊：
影响因子：
4.6
通讯作者：
K. Hatada
中科院分区：
文献类型：
--
作者：
M. Tabuchi;T. Kawauchi;T. Kitayama;K. Hatada
在双（2，6-二叔丁基苯氧基）烷基铝存在下，丙烯酸正丁酯（n-BuA）和丙烯酸乙酯（EA）等伯烷基酯与叔丁基锂（t-BuLi）在甲苯中进行阴离子聚合。t-BuLi/双（2，6-二叔丁基苯氧基）乙基铝体系在低温下聚合得到的聚合物具有窄的分子量分布，产率较高; t-BuLi/双（2，6-二叔丁基苯氧基）甲基铝体系在低温下聚合得到的聚合物具有宽的分子量分布，产率较低。单体加成实验显示了聚合反应的活性。发现初始单体浓度和聚合温度影响所得聚合物的MWD和立构规整性。
Anionic polymerizations of primary alkyl acrylates such as ethyl acrylate (EA) and n-butyl acrylate (n-BuA) with tert-butyllithium (t-BuLi) in the presence of bis(2,6-di-tert-butylphenoxy)alkylaluminums were carried out in toluene. The polymerizations with t-BuLi/bis(2,6-di-tert-butylphenoxy)ethylaluminum at low temperatures gave syndiotactic-rich polymers with narrow molecular weight distribution (MWD) in high yields, while those with t-BuLi/bis(2,6-di-tert-butylphenoxy)methylaluminum gave polymers with broader MWD in lower yields. The monomer addition experiment revealed the livingness of the former polymerizations. The initial monomer concentration and polymerization temperature were found to affect the MWD and the stereoregularity of the obtained polymers.
影响因子：
2.8
作者：
T. Kitayama;Tomohiro Hirano;K. Hatada
通讯作者：
T. Kitayama;Tomohiro Hirano;K. Hatada