Rheological properties of polybutadiene/polyisoprene blend in the unstable and metastable regions under oscillatory shear

doi:10.1016/j.polymer.2014.04.026

CORC > 化学研究所 > 中国科学院化学研究所

	Rheological properties of polybutadiene/polyisoprene blend in the unstable and metastable regions under oscillatory shear
	Liu, Wei ; Dong, Xia 1; Zou, Fasheng ; Yang, Jian ; Wang, Dujin ; Han, Charles C.
刊名	POLYMER
	2014-05-27
卷号	55 期号:11 页码:2744-2750
关键词	Rheological Property Nucleation/growth Spinodal Point
ISSN号	0032-3861
DOI	10.1016/j.polymer.2014.04.026
英文摘要	The rheological properties of polybutadiene (PB)/polyisoprene (PI) in the unstable and metastable regions under oscillatory shear flow has been studied. Based on the shear quench experiment, it showed that the time dependent storage modulus G' initially increased and then decreased with time in the unstable region. The concentration fluctuation led to the increasing part and the coarsening of the bicontinuous structure led to the decreasing of the storage modulus. The rheological response of the nucleation/growth in the metastable region was similar to that of spinodal decomposition. The fluctuation-assisted nucleation theory proposed by Balsara et al. was similar to the spinodal decomposition mechanism, which led to the similar rheological response. However, the continuous nucleation led to the slow growth and the almost linear decayed theological curve, which was different from that in the unstable region. According to this theory, the relative nucleation rate on the early stage of nucleation could be calculated, which increased exponentially with the reciprocal of quench temperature in the metastable region. The spinodal point under oscillatory shear was also determined by the difference of maximum value of the storage modulus and the bulk modulus. (C) 2014 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000347369500016
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52203]
专题	中国科学院化学研究所
通讯作者	Dong, Xia
作者单位	1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Engn Plast,Joint Lab Polymer Sci & Ma, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wei,Dong, Xia,Zou, Fasheng,et al. Rheological properties of polybutadiene/polyisoprene blend in the unstable and metastable regions under oscillatory shear[J]. POLYMER,2014,55(11):2744-2750.
APA	Liu, Wei,Dong, Xia,Zou, Fasheng,Yang, Jian,Wang, Dujin,&Han, Charles C..(2014).Rheological properties of polybutadiene/polyisoprene blend in the unstable and metastable regions under oscillatory shear.POLYMER,55(11),2744-2750.
MLA	Liu, Wei,et al."Rheological properties of polybutadiene/polyisoprene blend in the unstable and metastable regions under oscillatory shear".POLYMER 55.11(2014):2744-2750.