DYNAMICS OF NEAR-CRITICAL POLYMER GELS

Authors
COLBY RH GILLMOR JR RUBINSTEIN M
Citation
Rh. Colby et al., DYNAMICS OF NEAR-CRITICAL POLYMER GELS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(5), 1993, pp. 3712-3716
Citations number
32
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
48
Issue
5
Year of publication
1993
Pages
3712 - 3716
Database
ISI
SICI code
1063-651X(1993)48:5<3712:DONPG>2.0.ZU;2-E
Abstract
We report the viscosity and the modulus of near-critical polyester gel s. Previous work has shown that these gels lie in the middle of the st atic crossover between mean-field and critical percolation. Above the gel point, the modulus data are well described by the scaling law attr ibuting kT of stored elastic energy per unentangled network strand. Be low the gel point, the viscosity data disagree with both the de Gennes conductivity analogy and the Rouse model, possibly due to a subtle ef fect of chain entanglement.