Graft Copolymers from Linear Polyethylene via Atom Transfer Radical Polymerization
Graft Copolymers from Linear Polyethylene via Atom Transfer Radical Polymerization
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DOI：
10.1021/ma0359887
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发表时间：
2004-04
期刊：
影响因子：
5.5
通讯作者：
Y. Inoue;T. Matsugi;N. Kashiwa;K. Matyjaszewski
中科院分区：
文献类型：
--
作者：
Y. Inoue;T. Matsugi;N. Kashiwa;K. Matyjaszewski
以苯乙烯为催化剂，通过乙烯/十一烯醇共聚合制备了聚乙烯接枝聚丙烯酸丁酯（PE-g-PBA）和聚乙烯接枝聚甲基丙烯酸甲酯（PE-g-PMMA），并将其转化为大分子引发剂进行原子转移自由基聚合（ATRP）。在稀ATRP条件下成功地制备了结构明确的丙烯酸酯和甲基丙烯酸酯接枝共聚物。这通过对分离的侧链的分析得到证实。PBA和PMMA侧链的分子量与预测值一致，且分子量分布较窄。评价了PE-g-PMMA作为PE和PMMA共混物的增容剂，并证明了这种非极性/极性接枝共聚物作为增容剂的潜力。
Polyethylene-graft-poly(n-butyl acrylate) (PE-g-PBA) and polyethylene-graft-poly(methyl methacrylate) (PE-g-PMMA) were prepared through the combination of metallocene-catalyzed ethylene/10-undecen-1-ol copolymerization and conversion of the copolymer into a macroinitiator for atom transfer radical polymerization (ATRP). Well-defined acrylate and methacrylate graft copolymers were successfully prepared under dilute ATRP conditions. This was confirmed by analyses of the detached side chains. The molecular weights of both PBA and PMMA side chains agreed with predicted values, and molecular weight distributions were narrow. The PE-g-PMMA was evaluated as a compatibilizer for a blend of PE and PMMA and demonstrated the potential of such nonpolar/polar graft copolymers as a compatibilizing agent.