Elasticity of comb copolymer cylindrical brushes

被引：126
作者：
Subbotin, A
Saariaho, M
Ikkala, O
ten Brinke, G
机构：
[1] Univ Groningen, Polymer Chem Lab, NL-9747 AG Groningen, Netherlands
[2] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
[3] Russian Acad Sci, Inst Petrochem Synthesis, Moscow 117912, Russia
[4] Helsinki Univ Technol, Phys Mat Lab, Dept Engn Phys & Math, FIN-02015 Espoo, Finland
来源：
MACROMOLECULES | 2000年 / 33卷 / 09期
关键词：
D O I：
10.1021/ma991031l
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
An analysis of the cylindical brush of an isolated comb copolymer molecule consisting of a semiflexible backbone and flexible side chains is presented. Using the Alexander-de Gennes approximation, we calculate the free energy of both straight and bent cylindrical brush and the brush persistence length lambda, and show that lambda scales as a function of the side chain length M as lambda proportional to M-2. The discrepancy between the asymptotic scaling behavior and recent computer simulation results is also discussed.
引用
收藏
页码：3447 / 3452
页数：6
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