Semiflexible polymer brushes: A scaling theory

被引:26
作者
Kuznetsov, DV
Chen, ZY [1 ]
机构
[1] Univ Waterloo, Guelph Waterloo Program Grad Work Phys, Waterloo, ON N2L 3G1, Canada
[2] Russian Acad Sci, Inst Biochem Phys, Moscow 117977, Russia
[3] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada
关键词
D O I
10.1063/1.477338
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present a simple scaling theory to describe the conformational properties of semiflexible polymers grafted on a flat surface. For orientation-dependent interactions between polymer segments, we analyzed the physical properties of a polymer brush from the collapsed to strongly stretched regimes. Our analysis predicts first-order isotropic-nematic phase transitions between isotropically and nematically collapsed brushes, and between stretched and nematically collapsed brushes. It is also found that the orientational interactions would raise the effective a temperature as compared with the isotropic counterparts. (C) 1998 American Institute of Physics. [S0021-9606(98)50349-4].
引用
收藏
页码:7017 / 7027
页数:11
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