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Rigidity effect on phase behavior of symmetric ABA triblock copolymers: A Monte Carlo simulation
Song, Jianhui; Shi, Tongfei; Li, Yunqi; Chen, Jizhong; An, Lijia
2008-08-07
Source PublicationJOURNAL OF CHEMICAL PHYSICS
ISSN0021-9606
Volume129Issue:5
AbstractThe phase behavior of symmetric ABA triblock copolymers containing a semiflexible midblock is studied by lattice Monte Carlo simulation. As the midblock evolves from a fully flexible state to a semiflexible state in terms of increase in its persistence length, different phase behaviors are observed while cooling the system from an infinite high temperature to a temperature below T-ODT (order-disorder transition temperature). Within the midblock flexibility range we studied (l(p)/N-c <= 0.105), a lamellar structure is formed at equilibrium state as the situation for fully flexible chains. The fraction of bridge chain is evaluated for the lamellar structures. We find that the increase in midblock rigidity indeed results in the increase in bridge chain fraction within the range from 44.9% to 51.8%. In order to elucidate phase behavior evolution observed in our simulation, a detailed conformation distribution analysis is also given. Our results bridge a gap of different phase behaviors between rod-coil block copolymer and coil-coil block copolymer and show a necessity to investigate rigidity influence on phase diagram. (C) 2008 American Institute of Physics.
DOI10.1063/1.2957463
Indexed BySCI
Language英语
WOS IDWOS:000258336100043
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65536
Collection中国科学院化学研究所
Corresponding AuthorSong, Jianhui
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Song, Jianhui,Shi, Tongfei,Li, Yunqi,et al. Rigidity effect on phase behavior of symmetric ABA triblock copolymers: A Monte Carlo simulation[J]. JOURNAL OF CHEMICAL PHYSICS,2008,129(5).
APA Song, Jianhui,Shi, Tongfei,Li, Yunqi,Chen, Jizhong,&An, Lijia.(2008).Rigidity effect on phase behavior of symmetric ABA triblock copolymers: A Monte Carlo simulation.JOURNAL OF CHEMICAL PHYSICS,129(5).
MLA Song, Jianhui,et al."Rigidity effect on phase behavior of symmetric ABA triblock copolymers: A Monte Carlo simulation".JOURNAL OF CHEMICAL PHYSICS 129.5(2008).
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