POLYMERS WITH QUENCHED SHORT-RANGE RANDOM SELF-INTERACTIONS

被引：21
|
作者：
STEPANOW, S
SCHULZ, M
SOMMER, JU
机构：
[1] TH MERSEBURG,FACHBEREICH PHYS,O-4200 MERSEBURG,GERMANY
[2] UNIV REGENSBURG,INST PHYS 3,W-8400 REGENSBURG,GERMANY
来源：
EUROPHYSICS LETTERS | 1992年 / 19卷 / 04期
关键词：
MACROMOLECULES AND POLYMER MOLECULES; GENERAL STUDIES OF PHASE TRANSITIONS;
D O I：
10.1209/0295-5075/19/4/005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Two models of polymers with quenched short-range random self-interactions are studied by means of perturbation theory and the RG method. The annealed part of the randomness results in effective two-body attraction, whereas the quenched part results in repulsion. The critical dimension of this repulsion is two. In the random charge model considered the repulsion due to the quenched randomness can cause the swelling of the polymer. The swelling exponent is computed to order epsilon-2 (epsilon = 2 - d).
引用
收藏
页码：273 / 277
页数：5
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