DYNAMICS OF FRACTIONAL BROWNIAN WALKS

Citation
P. Biswas et Bj. Cherayil, DYNAMICS OF FRACTIONAL BROWNIAN WALKS, Journal of physical chemistry, 99(2), 1995, pp. 816-821
Citations number
20
Categorie Soggetti
Chemistry Physical
ISSN journal
00223654
Volume
99
Issue
2
Year of publication
1995
Pages
816 - 821
Database
ISI
SICI code
0022-3654(1995)99:2<816:DOFBW>2.0.ZU;2-4
Abstract
We investigate the dynamics of polymers whose solution configurations are represented by fractional Brownian walks. The calculation of the t wo dynamical quantities considered here, the longest relaxation time t au(r) and the intrinsic viscosity [eta], is formulated in terms of Lan gevin equations and is carried out within the continuum approach devel oped in an earlier paper. Our results for tau(r) and [eta] reproduce k nown scaling relations and provide reasonable numerical estimates of s caling amplitudes. The possible relevance of the work to the study of globular proteins and other compact polymeric phases is discussed.