RHEOLOGICAL BEHAVIOR OF A HYDROPHOBICALLY ASSOCIATING WATER-SOLUBLE POLYMER

被引:95
作者
AUBRY, T
MOAN, M
机构
[1] Laboratoire de Rhéologie, I.U.P. Génie Mécanique, Brest Cedex, 6, avenue Victor Le Gorgeu
关键词
D O I
10.1122/1.550566
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
We have investigated experimentally the behavior of a water soluble associating polymer system, hydrophobically modified (hydroxypropyl)guar, with very few randomly distributed hydrophobic substituents along the chains. We focus mainly on the rheological effects due to the superposition of the reversible hydrophobic interaction network on the physical entanglement network in dense macromolecular systems of that kind. Both linear and nonlinear response to transient, steady, and oscillatory shear flow prove that, in the semidilute and moderately concentrated regime, the hydrophobically associating polymer behaves like a classical dense macromolecular system whose long-time dynamics can be described using only one long relaxation time, identified as a retarded disengagement time, much larger than the association lifetime. The temporary hydrophobically associating network can be destroyed when applying a critical shear stress τc, which is studied as a function of polymer concentration. © 1985, The Society of Rheology. All rights reserved.
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页码:1681 / 1692
页数:12
相关论文
共 14 条
[1]   THE RHEOLOGY OF SOLUTIONS OF ASSOCIATING POLYMERS - COMPARISON OF EXPERIMENTAL BEHAVIOR WITH TRANSIENT NETWORK THEORY [J].
ANNABLE, T ;
BUSCALL, R ;
ETTELAIE, R ;
WHITTLESTONE, D .
JOURNAL OF RHEOLOGY, 1993, 37 (04) :695-726
[2]  
[Anonymous], 1989, PHENOMENOLOGICAL THE, DOI DOI 10.1007/978-3-642-73602-5_9
[3]  
[Anonymous], 1979, SCALING CONCEPTS POL
[4]   THE THEORY OF SHEAR-THICKENING POLYMER-SOLUTIONS [J].
BALLARD, MJ ;
BUSCALL, R ;
WAITE, FA .
POLYMER, 1988, 29 (07) :1287-1293
[5]  
CARITEY JP, 1994, THESIS U ROUEN
[6]  
GELMAN RA, 1986, ADV CHEM SER, P101
[7]  
GLASS JE, 1989, ADV CHEM SERIES AM C, V223
[8]  
JENKINS RD, 1991, ACS SYM SER, V462, P222
[9]   RHEOLOGY OF GUAR AND HPG CROSS-LINKED BY BORATE [J].
KESAVAN, S ;
PRUDHOMME, RK .
MACROMOLECULES, 1992, 25 (07) :2026-2032
[10]   DYNAMICS OF REVERSIBLE NETWORKS [J].
LEIBLER, L ;
RUBINSTEIN, M ;
COLBY, RH .
MACROMOLECULES, 1991, 24 (16) :4701-4707