ICCAS OpenIR
EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY
Cui Jie1,2; Zhang Xiaoxu3; Han Yuanyuan1; Jiang Wei1
2011-04-20
Source PublicationACTA POLYMERICA SINICA
ISSN1000-3304
Issue4Pages:421-426
AbstractThe effect of polydispersity on the self-assembly of amphiphilic diblock copolymer in a selective solvent was studied by means of Monte Carlo simulation. The polydisperse diblock copolymer system was constructed via the mixing of three amphiphilic diblock copolymer chains different in length, i. e., A(2)B(2), A(2)B(6) and A(2)B(10). The simulation results show that the micelle morphologies formed by AB diblock copolymers in a selective solvent changed from vesicle to lamellae, then to spheres with an increase in polydispersity index (PDI) from 1. 0 to 1. 4. Through the analysis of the variations of the number and fractions of free single chains with the increase of PDI in each system, it is found that the number of short chains (i. e. A(2)B(2)) which aggregate into micelles increased with an increasing PDI. Meanwhile, the self-assembly processes of diblock copolymers with different PDI in a selective solvent reveal that the increasing number of short chains can increase the surface area of the micelles,leading to a disadvantage for the fusion between small micelles during the self-assembly. The increase of the surface area of micelles is the main reason of the morphological transition from large-sized vesicles to small-sized spheres when the PDI is increased. These simulation results indicate that the micelle morphologies and their mutual transitions in a selective solvent can be tuned by the control of the polydispersity of AB diblock copolymers.
KeywordPolydispersity Amphiphilic Diblock Copolymer Self-assembly Monte Carlo Simulation
DOI10.3724/SP.J.1105.2011.10246
Indexed BySCI
Language英语
WOS IDWOS:000290555900014
PublisherSCIENCE PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73882
Collection中国科学院化学研究所
Corresponding AuthorCui Jie
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.NE Normal Univ, Sch Phys, Changchun 130024, Peoples R China
Recommended Citation
GB/T 7714
Cui Jie,Zhang Xiaoxu,Han Yuanyuan,et al. EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY[J]. ACTA POLYMERICA SINICA,2011(4):421-426.
APA Cui Jie,Zhang Xiaoxu,Han Yuanyuan,&Jiang Wei.(2011).EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY.ACTA POLYMERICA SINICA(4),421-426.
MLA Cui Jie,et al."EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY".ACTA POLYMERICA SINICA .4(2011):421-426.
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