DRAG ON A TETHERED CHAIN MOVING IN A POLYMER MELT

被引：0

作者：

AJDARI, A

BROCHARDWYART, F

GAY, C

DEGENNES, PG

VIOVY, JL

机构：

[1] INST PIERRE & MARIE CURIE,PSI,F-75231 PARIS 05,FRANCE

[2] COLL FRANCE,F-75231 PARIS 05,FRANCE

来源：

JOURNAL DE PHYSIQUE II | 1995年 / 5卷 / 04期

关键词：

D O I：

暂无

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A chain of N monomers is attached to a small colloidal particle, and is pulled (at a velocity V) inside a polymer melt (chemically identical, with P monomers per chain). The main parameter for this problem is the number X(V) of P chains entangled with the (N) chain. Earlier estimates of X are criticized, and a new form is proposed: at large N(N > N-e(2)), we are led to a ''Stokes'' regime, X = N-1/2, while at smaller N (N < N-e(2)), we find a ''Rouse'' regime, X = N/N-e (where N-e is the number of monomers per entanglement).

引用

页码：491 / 495

页数：5