Morphology evolution and rheological properties of polybutadiene/polyisoprene blend after the cessation of steady shear

doi:10.1063/1.4821175

CORC > 化学研究所 > 中国科学院化学研究所

	Morphology evolution and rheological properties of polybutadiene/polyisoprene blend after the cessation of steady shear
	Liu, Wei ; Dong, Xia 1; Zou, Fasheng ; Yang, Jian ; Wang, Dujin ; Han, Charles C.
刊名	JOURNAL OF CHEMICAL PHYSICS
	2013-09-21
卷号	139 期号:11
ISSN号	0021-9606
DOI	10.1063/1.4821175
英文摘要	The morphology evolution and rheological response of a near-critical composition polybutadiene/polyisoprene blend after the cessation of steady shear was studied with an ARES rheometer and a shear light scattering photometer equipped with an optical microscope in this work. The relationship between the morphology of the blend during the relaxation after the cessation of steady shear with different shear rates and their corresponding rheological properties was successfully established. It was found that the different shear-induced morphologies under steady shear would relax to the equilibrium states via varied mechanisms after the shear cessation. The average size of the dispersed domains in the coarsening process was influenced by the pre-shear history. The results indicated that the pre-shear history could slow down the growth rate of phase domains during the coarsening process. It had effect on the coarsening mechanism on the early stage of relaxation after the cessation of very strong shear when the homogenization effects were strong, but no effect on the late stage. The storage modulus G' increased significantly in the breakup process of the stringlike phase. After all the string-like structures were broken up into small ellipsoids, then G' gradually decreased and finally approached to an invariant value. The characteristic rheological behavior can be attributed to the different structure on the relaxation process. (C) 2013 AIP Publishing LLC.
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000324827800039
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54935]
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, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Joint Lab Polymer Sci & Mat,Beijing Natl Lab Mol, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wei,Dong, Xia,Zou, Fasheng,et al. Morphology evolution and rheological properties of polybutadiene/polyisoprene blend after the cessation of steady shear[J]. JOURNAL OF CHEMICAL PHYSICS,2013,139(11).
APA	Liu, Wei,Dong, Xia,Zou, Fasheng,Yang, Jian,Wang, Dujin,&Han, Charles C..(2013).Morphology evolution and rheological properties of polybutadiene/polyisoprene blend after the cessation of steady shear.JOURNAL OF CHEMICAL PHYSICS,139(11).
MLA	Liu, Wei,et al."Morphology evolution and rheological properties of polybutadiene/polyisoprene blend after the cessation of steady shear".JOURNAL OF CHEMICAL PHYSICS 139.11(2013).