Molecular brushes as super-soft elastomers

被引:193
作者
Pakula, Tadeusz
Zhang, Ying
Matyjaszewski, Krzysztof
Lee, Hyung-il
Boerner, Hans
Qin, Shuhui
Berry, Guy C.
机构
[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
[2] Max Planck Inst Polymer Res, D-55021 Mainz, Germany
基金
美国国家科学基金会;
关键词
super-soft elastomers; molecular brush; ATRP;
D O I
10.1016/j.polymer.2006.05.064
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Brush copolymers synthesized by controlled radical polymerizations were crosslinked either covalently or physically, resulting in elastomers with an unusually low equilibrium shear modulus G(e), of order I kPa. Examples are given for both crosslink motifs, along with the dynamic viscoclastic properties of these materials. The results are discussed in terms of the effect of the side chains on the brush polymers, which behave in some respect as a low molecular weight diluent that cannot be leached from the sample. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:7198 / 7206
页数:9
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