中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Morphology evolution and rheological properties of polybutadiene/polyisoprene blend after the cessation of steady shear

文献类型:期刊论文

作者Liu, Wei; Dong, Xia1; Zou, Fasheng; Yang, Jian; Wang, Dujin; Han, Charles C.
刊名JOURNAL OF CHEMICAL PHYSICS
出版日期2013-09-21
卷号139期号:11
ISSN号0021-9606
DOI10.1063/1.4821175
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
WOS记录号WOS:000324827800039
出版者AMER INST PHYSICS
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).

入库方式: OAI收割

来源:化学研究所

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