Effect of chain composition on the mechanical response of structural gel: A molecular dynamics simulation

doi:10.1016/j.polymer.2014.07.006

CORC > 化学研究所 > 中国科学院化学研究所

	Effect of chain composition on the mechanical response of structural gel: A molecular dynamics simulation
	Fu, Cui-Liu 1; Jia, Xue-Zhi 2; Sun, Zhao-Yan 1; An, Li-Jia 1
刊名	POLYMER
	2014-08-18
卷号	55 期号:17 页码:4538-4545
关键词	Chain Composition Effect Molecular Dynamics Simulation Mechanical Property Of Polymer Gel
ISSN号	0032-3861
DOI	10.1016/j.polymer.2014.07.006
英文摘要	Polymer gels, defined either from the structural point of view (structural gel) or by their mechanical properties (mechanical gel), are ubiquitous in our daily life. In our previous work U. Phys. Chem. B, 2011, 115, 11345), we reported that, the mechanical gel formed by strong solvophobic ABA block copolymers with fixed chain compositions shows a strong mechanical response, which meant the formed gel had a high modulus. In this work, we focus on the effect of chain composition on the relationship between structural gel and mechanical gel, where the chain length of block copolymer is lower than its entanglement chain length for simplicity. Our results show that the chain composition has a great effect on the mechanical response of the ABA copolymer solutions with a strong solvophobicity. On the other hand, for the structural gel formed by weak solvophobic block polymers, we do not find any strong mechanical responses even we change the chain composition in a wide range. Moreover, we find three typical gelation processes, companied with three kinds of different mechanical responses. These results may provide us an effective method to control the mechanical property of a polymer gel as expected. (C) 2014 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000340704400015
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51107]
专题	中国科学院化学研究所
通讯作者	Sun, Zhao-Yan
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
推荐引用方式 GB/T 7714	Fu, Cui-Liu,Jia, Xue-Zhi,Sun, Zhao-Yan,et al. Effect of chain composition on the mechanical response of structural gel: A molecular dynamics simulation[J]. POLYMER,2014,55(17):4538-4545.
APA	Fu, Cui-Liu,Jia, Xue-Zhi,Sun, Zhao-Yan,&An, Li-Jia.(2014).Effect of chain composition on the mechanical response of structural gel: A molecular dynamics simulation.POLYMER,55(17),4538-4545.
MLA	Fu, Cui-Liu,et al."Effect of chain composition on the mechanical response of structural gel: A molecular dynamics simulation".POLYMER 55.17(2014):4538-4545.