Strain Hardening in Startup Shear of Long-Chain Branched Polymer Solutions

被引：21

作者：

Liu, Gengxin ^{[1
]}

Cheng, Shiwang ^{[1
]}

Lee, Hyojoon ^{[2
,3
]}

Ma, Hongwei ^{[1
,4
]}

Xu, Hongde ^{[1
,5
]}

Chang, Taihyun ^{[2
,3
]}

Quirk, Roderic P. ^{[1
]}

Wang, Shi-Qing ^{[1
]}

机构：

[1] Univ Akron, Dept Polymer Sci, Maurice Morton Inst Polymer Sci & Engn, Akron, OH 44325 USA

[2] Pohang Univ Sci & Technol POSTECH, Dept Chem, Pohang 790784, South Korea

[3] Pohang Univ Sci & Technol POSTECH, Div Adv Mat Sci, Pohang 790784, South Korea

[4] Dalian Univ Technol, Sch Chem Engn, Liaoning Key Lab Polymer Sci & Engn, Dalian 116024, Peoples R China

[5] Sinopec Beijing Chem Ind Inst, Yanshan Branch, Beijing 100013, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 06期

基金：

美国国家科学基金会;

关键词：

CONVECTIVE CONSTRAINT RELEASE; ENTANGLED POLYMERS; MOLECULAR RHEOLOGY; MICROSCOPIC THEORY; COMB POLYMERS; DYNAMICS; POLYETHYLENE; SCATTERING; STRETCH; FLOWS;

D O I：

10.1103/PhysRevLett.111.068302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show for the first time that entangled polymeric liquids containing long-chain branching can exhibit strain hardening upon startup shear. As the significant long-chain branching impedes chain disentanglement, Gaussian coils between entanglements can deform to reach the finite extensibility limit where the intrachain retraction force exceeds the value expected from the usual conformational entropy loss evaluated based on Gaussian chain statistics. The phenomenon is expected to lead to further theoretical understanding.

引用

页数：4

共 50 条

[1] The strain hardening of linear and long-chain branched polymer melts
Bastian, H
Rubio, P
Wagner, MH
CHEMIE INGENIEUR TECHNIK, 2001, 73 (11) : 1447 - 1451
[2] The influence of shear thinning on elongation hardening of long-chain branched polypropylene
Breuer, Gerold
Schausberger, Alois
XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2, 2008, 1027 : 354 - +
[3] Dynamical and Structural Properties of Comb Long-Chain Branched Polymer in Shear Flow
Wang, Deyin
Wen, Xiaohui
Zhang, Dong
Tang, Jiajun
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2022, 23 (19)
[4] The rheology of linear and long-chain branched polymer melts
Wagner, MH
MACROMOLECULAR SYMPOSIA, 2006, 236 : 219 - 227
[5] Nonlinear shear and extensional rheology of long-chain randomly branched polybutadiene
Kasehagen, LJ
Macosko, CW
JOURNAL OF RHEOLOGY, 1998, 42 (06) : 1303 - 1327
[6] Comparison of the Foamability of Linear and Long-Chain Branched Polypropylene-The Legend of Strain-Hardening as a Requirement for Good Foamability
Weingart, Nick
Raps, Daniel
Lu, Mingfu
Endner, Lukas
Altstadt, Volker
POLYMERS, 2020, 12 (03)
[7] Long-Chain Branched ROMP Polymers
Hilf, Stefan
Wurm, Frederik
Kilbinger, Andreas F. M.
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2009, 47 (24) : 6932 - 6940
[8] A hierarchical multi-mode MSF model for long-chain branched polymer melts part III: shear flows
Narimissa, Esmaeil
Wagner, Manfred H.
RHEOLOGICA ACTA, 2016, 55 (08) : 633 - 639
[9] A hierarchical multi-mode MSF model for long-chain branched polymer melts part III: shear flows
Esmaeil Narimissa
Manfred H. Wagner
Rheologica Acta, 2016, 55 : 633 - 639
[10] Entangled Linear Polymer Solutions at High Shear: From Strain Softening to Hardening
Liu, Gengxin
Wang, Shi-Qing
MACROMOLECULES, 2016, 49 (24) : 9647 - 9654

← 1 2 3 4 5 →