Nonlinear rheology of model comb polymers

被引：38

作者：

Kapnistos, M. ^{[1
,2
]}

Kirkwood, K. M. ^{[2
]}

Ramirez, J. ^{[3
]}

Vlassopoulos, D. ^{[1
,4
]}

Leal, L. G. ^{[2
]}

机构：

[1] Fdn Res & Technol Hellas FORTH, Inst Elect Struct & Laser, GR-71110 Iraklion, Crete, Greece

[2] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA

[3] Univ Reading, Dept Appl Math, Reading RC6 6AH, Berks, England

[4] Univ Crete, Dept Mat Sci & Technol, GR-71003 Iraklion, Crete, Greece

来源：

JOURNAL OF RHEOLOGY | 2009年 / 53卷 / 05期

关键词：

SLIP-LINK MODEL; BRANCHED POLYMERS; DAMPING FUNCTION; ENTANGLED POLYMERS; FLOW BEHAVIOR; STEP SHEAR; MOLECULAR RHEOLOGY; CONSTRAINT RELEASE; RELAXATION MODULUS; STRESS-RELAXATION;

D O I：

10.1122/1.3191781

中图分类号：

O3 [力学];

学科分类号：

070301 [无机化学];

摘要：

We measure the stress relaxation of linear comb polymer solutions, after a large amplitude step shear strain. We apply the time-temperature superposition principle in order to construct stress relaxation master curves that span many orders of magnitude in time and cover the entire comb relaxation from early branch retraction to backbone reptation. We find evidence of distinct relaxation processes and dynamic tube dilation that can be attributed to the architectural features of the polymer. (C) 2009 The Society of Rheology. [DOI: 10.1122/1.3191781]

引用

页码：1133 / 1153

页数：21

共 64 条

[1]

Linear and Nonlinear viscoelasticity of entangled multiarm (pom-pom) polymer liquids [J].

Archer, LA ;

Juliani .

MACROMOLECULES, 2004, 37 (03) :1076-1088

[2]

Separability criteria for entangled polymer liquids [J].

Archer, LA .

JOURNAL OF RHEOLOGY, 1999, 43 (06) :1555-1571

[3]

ARCHER LA, 2005, POLYM PROCESSING INS, P31501

[4]

Topological contributions to nonlinear elasticity in branched polymers [J].

Bick, DK ;

McLeish, TCB .

PHYSICAL REVIEW LETTERS, 1996, 76 (14) :2587-2590

[5]

BIRD RB, 1987, POLYM KINETIC THEORY, V2, P31501

[6]

Theoretical molecular rheology of branched polymers in simple and complex flows: The pom-pom model [J].

Bishko, G ;

McLeish, TCB ;

Harlen, OG ;

Larson, RG .

PHYSICAL REVIEW LETTERS, 1997, 79 (12) :2352-2355

[7]

Evaluation of rheological constitutive equations for branched polymers in step shear strain flows [J].

Chodankar, CD ;

Schieber, JD ;

Venerus, DC .

RHEOLOGICA ACTA, 2003, 42 (1-2) :123-131

[8]

2-PARAMETER SCALING FOR POLYMERS IN THETA-SOLVENTS [J].

COLBY, RH ;

RUBINSTEIN, M .

MACROMOLECULES, 1990, 23 (10) :2753-2757

[9]

DEALY JM, 2006, STRUCTURE RHEOLOGY M, P31501

[10]

DEGENNES PG, 1979, SCALING CONCEPTS POL, P31501

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