DYNAMICS AND CONFORMATIONAL PROPERTIES OF ROUSE POLYMERS IN RANDOM LAYERED FLOWS

被引:18
作者
OSHANIN, G [1 ]
BLUMEN, A [1 ]
机构
[1] UNIV FREIBURG, D-79104 FREIBURG, GERMANY
关键词
D O I
10.1002/mats.1995.040040106
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Here we study the dynamics and the conformational properties of Rouse polymers in random layered flows. We obtain explicit expressions for the mean squared displacement of the center of mass of the polymer as a function of time and number of beads. The averages involve both the thermal noise and the realizations of the random flows. We find also an explicit dependence of the equilibrium value of the end-to-end vector on the number of beads and other dimensional parameters. Our results are compared to that for Rouse polymers immersed in non-random steady shear flows.
引用
收藏
页码:87 / 109
页数:23
相关论文
共 41 条
[1]  
[Anonymous], 1971, MODERN THEORY POLYM
[2]  
[Anonymous], 1979, SCALING CONCEPTS POL
[3]  
[Anonymous], 1987, DYNAMICS POLYM LIQUI
[4]   DRAG REDUCTION IN TURBULENT FLOWS BY POLYMERS [J].
BHATTACHARJEE, JK ;
THIRUMALAI, D .
PHYSICAL REVIEW LETTERS, 1991, 67 (02) :196-199
[5]   SUPERDIFFUSION IN RANDOM VELOCITY-FIELDS [J].
BOUCHAUD, JP ;
GEORGES, A ;
KOPLIK, J ;
PROVATA, A ;
REDNER, S .
PHYSICAL REVIEW LETTERS, 1990, 64 (21) :2503-2506
[6]   ANOMALOUS DIFFUSION IN DISORDERED MEDIA - TRAPPING, CORRELATIONS AND THE CENTRAL-LIMIT-THEOREM [J].
BOUCHAUD, JP ;
GEORGES, A ;
LEDOUSSAL, P .
JOURNAL DE PHYSIQUE, 1987, 48 (11) :1855-1860
[7]   PROBABILITY-DISTRIBUTION FOR TRAJECTORIES OF A POLYMER-CHAIN SEGMENT [J].
BURLATSKII, SF ;
OSHANIN, GS .
THEORETICAL AND MATHEMATICAL PHYSICS, 1988, 75 (03) :659-663
[8]   POLYMER DEFORMATION IN VARIOUS FLOWS [J].
CARL, W ;
BRUNS, W .
MACROMOLECULAR THEORY AND SIMULATIONS, 1994, 3 (02) :295-303
[9]   REPTATION OF A POLYMER CHAIN IN PRESENCE OF FIXED OBSTACLES [J].
DEGENNES, PG .
JOURNAL OF CHEMICAL PHYSICS, 1971, 55 (02) :572-+
[10]   COIL-STRETCH TRANSITION OF DILUTE FLEXIBLE POLYMERS UNDER ULTRAHIGH VELOCITY-GRADIENTS [J].
DEGENNES, PG .
JOURNAL OF CHEMICAL PHYSICS, 1974, 60 (12) :5030-5042