REMARKS ON THE DYNAMICS OF RANDOM COPOLYMERS

被引：21

作者：

BOUCHAUD, JP ^{[1
]}

CATES, ME ^{[1
]}

机构：

[1] CEA,SERV PHYS ETAT CONDENSE,F-91191 GIF SUR YVETTE,FRANCE

来源：

JOURNAL DE PHYSIQUE II | 1993年 / 3卷 / 08期

关键词：

D O I：

10.1051/jp2:1993189

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We discuss the dynamics of random AB copolymers, and show that a glassy, quasi-frozen phase is reached as soon as chi(AB) square-root N/N(e)1/2 congruent-to 1 (where N is the number of monomers, N(e) the entanglement length and chi(AB) the Flory interaction parameter). This criterion is satisfied for much smaller chi(AB) than the value for which segregation occurs: chi(AB) congruent-to 1. The relaxation time of weakly disordered chains is furthermore found to take the empirical form N3+mu, where mu can reach significant values for certain choices Of chi(AB) and the fraction of B-monomers.

引用

页码：1171 / 1177

页数：7

共 22 条

[1]

ADAM M, 1992, J PHYS II, V2, P2067, DOI 10.1051/jp2:1992251

[2] FLORY FORMULA AS AN EXTENDED LAW OF LARGE NUMBERS [J].

BOUCHAUD, JP ;

GEORGES, A .

PHYSICAL REVIEW B, 1989, 39 (04) :2846-2849

[3] CLASSICAL DIFFUSION OF A PARTICLE IN A ONE-DIMENSIONAL RANDOM FORCE-FIELD [J].

BOUCHAUD, JP ;

COMTET, A ;

GEORGES, A ;

LEDOUSSAL, P .

ANNALS OF PHYSICS, 1990, 201 (02) :285-341

[4] ANOMALOUS DIFFUSION IN DISORDERED MEDIA - STATISTICAL MECHANISMS, MODELS AND PHYSICAL APPLICATIONS [J].

BOUCHAUD, JP ;

GEORGES, A .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1990, 195 (4-5) :127-293

[5]

De Gennes P.G., 1985, SCALING CONCEPTS POL

[6] BROWNIAN-MOTION OF A CLASSICAL PARTICLE THROUGH POTENTIAL BARRIERS - APPLICATION TO HELIX-COIL TRANSITIONS OF HETEROPOLYMERS [J].

DEGENNES, PG .

JOURNAL OF STATISTICAL PHYSICS, 1975, 12 (06) :463-481

[7]

DELACRUZ MO, IN PRESS

[8] THE DYNAMICS OF ENTANGLED POLYMERS [J].

DEUTSCH, JM .

JOURNAL DE PHYSIQUE, 1987, 48 (01) :141-150

[9]

DOI M, 1986, THOERY PLYMER DYNAMI

[10] DYNAMIC RENORMALIZATION OF POLYMERS IN QUENCHED DISORDER - LONG-TIME DIFFUSION AND SHORT-TIME ANOMALIES [J].

EBERT, U ;

SCHAFER, L .

EUROPHYSICS LETTERS, 1993, 21 (07) :741-746

← 1 2 3 →