期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 210, 期 3-4, 页码 256-262出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.200800557
关键词
anionic polymerization; block copolymers; dimethylaminoethyl methacrylate; ethylene oxide; phosphazene; stimuli-responsive polymers
资金
- Volkswagen-Stiftung
- German Science Foundation [1259]
The synthesis of several diblock copolymers with DMAEMA via anionic polymerization is presented; PS-b-PDMAEMA, PB-b-PDMAEMA, poly(p-tert-butoxystyrene)-b-PDMAEMA, and PEO-b-PDMAEMA. The latter was synthesized using sec-butyllithium as initiator in presence of the phosphazene base t-BUP4, enabling a facile changeover from an oxyanion to a carbanion. All reactions resulted in narrowly distributed block copolymers (PDI < 1.1). For PEO-b-PDMAEMA diblock copolymers with a high blocking efficiency and a near-narrow molecular weight distribution (PD1 < 1.40) could be prepared. The advantage of the presented one-pot synthesis is a significant higher blocking efficiency compared to commercially available PEO macroinitiators under similar conditions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据