Copolymers with controlled distribution of comonomers along the chain .1. Structure, thermodynamics and dynamic properties of gradient copolymers. Computer simulation

被引:143
作者
Pakula, T [1 ]
Matyjaszewski, K [1 ]
机构
[1] CARNEGIE MELLON UNIV,DEPT CHEM,PITTSBURGH,PA 15213
关键词
D O I
10.1002/mats.1996.040050514
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Properties of copolymer systems with various composition distributions of comonomers A and B along the chain are analyzed by means of computer simulation using the Cooperative Motion Algorithm. Extreme cases of random and block copolymers, as well as the intermediate cases of gradient copolymers with various composition gradients along the chain are considered. Thermodynamic, static and dynamic properties of systems are predicted in a broad temperature range including both the homogeneous and the microphase separation regime. A possibility to control the microphase separation temperature and consequently a possibility to control a shift of the properties along the temperature scale by changing the monomer distribution within copolymer chains is demonstrated.
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页码:987 / 1006
页数:20
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