Modeling Viscoelasticity and Dynamic Nematic Order of Exchangeable Liquid Crystal Elastomers

doi:10.1103/PhysRevLett.131.068101

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Modeling Viscoelasticity and Dynamic Nematic Order of Exchangeable Liquid Crystal Elastomers
	Zhao, Jiameng 1; Meng, Fanlong 1,2
刊名	PHYSICAL REVIEW LETTERS
	2023
卷号	131 期号:6 页码:68101
关键词	CROSS-LINKED NETWORKS STRESS-RELAXATION TRANSIENT NETWORK ELASTICITY
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.131.068101
英文摘要	Exchangeable liquid crystal elastomers (XLCEs), an emerging class of recyclable polymer materials, consist of liquid crystalline polymers which are dynamically crosslinked. We develop a macroscopic continuum model by incorporating the microscopic dynamic features of the cross-links, which can be utilized to understand the viscoelasticity of the materials together with the dynamic nematic order. As applications of the model, we study the rheological responses of XLCEs in three cases: stress relaxation, strain ramp, and creep compliance, where the materials show interesting rheology as an interplay between the dynamic nematic order of the mesogenic units, the elasticity from the network structure, and the dissipation due to chain exchange reactions. Not only being useful in understanding the physical mechanism underlying the fascinating characteristics of XLCEs, this work can also guide their future fabrications with desired rheological properties.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/28023]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Wenzhou Inst, Wenzhou 325000, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Jiameng,Meng, Fanlong. Modeling Viscoelasticity and Dynamic Nematic Order of Exchangeable Liquid Crystal Elastomers[J]. PHYSICAL REVIEW LETTERS,2023,131(6):68101.
APA	Zhao, Jiameng,&Meng, Fanlong.(2023).Modeling Viscoelasticity and Dynamic Nematic Order of Exchangeable Liquid Crystal Elastomers.PHYSICAL REVIEW LETTERS,131(6),68101.
MLA	Zhao, Jiameng,et al."Modeling Viscoelasticity and Dynamic Nematic Order of Exchangeable Liquid Crystal Elastomers".PHYSICAL REVIEW LETTERS 131.6(2023):68101.