GENERALIZED FOKKER-PLANCK APPROACH TO THE COUPLING MODEL AND COMPARISON WITH COMPUTER-SIMULATIONS

被引:25
作者
NGAI, KL
PENG, SL
SKOLNICK, J
机构
[1] GEORGIA INST TECHNOL, SCH PHYS, ATLANTA, GA 30332 USA
[2] Scripps Res Inst, RES INST, DEPT MOLEC BIOL, LA JOLLA, CA 92037 USA
关键词
D O I
10.1021/ma00034a019
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The coupling model is reformulated using a Fokker-Planck approach to generalize the Rouse model to include time-dependent rate slowing down by entanglement coupling. The results compare favorably with data of several computer simulations. In particular, we point out the results of the normal-mode analysis of the molecular dynamics simulations of Kremer and Grest are in good agreement with the coupling model but at variance with the reptation model.
引用
收藏
页码:2184 / 2191
页数:8
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