ICCAS OpenIR
Monte Carlo simulation of miscibility of polymer blends with repulsive interactions: effect of chain structure
Shi, TF; Wen, GY; Jiang, W; An, LJ; Li, BY
2003-03-01
Source PublicationEUROPEAN POLYMER JOURNAL
ISSN0014-3057
Volume39Issue:3Pages:551-560
AbstractThe effects of the chain structure and the intramolecular interaction energy of an A/B copolymer on the miscibility of the binary blends of the copolymer and homopolymer C have been studied by means of a Monte Carlo simulation. In the system, the interactions between segments A, B and C are more repulsive than those between themselves. In order to study the effect of the chain structure of the A/B copolymer on the miscibility, the alternating, random and block copolymers were introduced in the simulations, respectively. The simulation results show that the miscibility of the binary blends strongly depends on the intramolecular interaction energy ((ε) over bar (AB)) between segments A and B within the A/B copolymers. The higher the repulsive interaction energy, the more miscible the A/B copolymer and homopolymer C are. For the diblock copolymer/homopolymer blends, they tend to form micro phase domains. However, the phase domains become so small that the blend can be considered as a homogeneous phase for the alternating copolymer/ homopolymer blends. Furthermore, the investigation of the average end-to-end distance ((h) over bar) in different systems indicates that the copolymer chains tend to coil with the decrease Of (ε) over bar (AB) whereas the (h) over bar of the homopolymer chains depends on the chain structure of the copolymers. As for the system containing the alternating or the random copolymers, the homopolymer chains also tend to coil with the decrease Of (ε) over bar (AB). However, for the systems including the block copolymers, there is a slight difference in the (h) over bar of the homopolymer chains with the variation of (ε) over bar (AB). (C) 2002 Elsevier Science Ltd. All rights reserved.
KeywordPolymer Blends Miscibility Monte Carlo Simulation
Indexed BySCI
Language英语
WOS IDWOS:000181115800014
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81374
Collection中国科学院化学研究所
Corresponding AuthorJiang, W
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Shi, TF,Wen, GY,Jiang, W,et al. Monte Carlo simulation of miscibility of polymer blends with repulsive interactions: effect of chain structure[J]. EUROPEAN POLYMER JOURNAL,2003,39(3):551-560.
APA Shi, TF,Wen, GY,Jiang, W,An, LJ,&Li, BY.(2003).Monte Carlo simulation of miscibility of polymer blends with repulsive interactions: effect of chain structure.EUROPEAN POLYMER JOURNAL,39(3),551-560.
MLA Shi, TF,et al."Monte Carlo simulation of miscibility of polymer blends with repulsive interactions: effect of chain structure".EUROPEAN POLYMER JOURNAL 39.3(2003):551-560.
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