Simulation on self-assembly of α, ω branched copolymer

被引：0
|
作者：
Sun, Z [1 ]
Song, HH [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn, Tianjin 300072, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2005年 / 21卷 / 08期
关键词：
self-consistent field theory; branched copolymer; self-assembly; morphology;
D O I：
10.3866/PKU.WHXB20050811
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A self-consistent field theory for alpha,omega branched copolymers is developed, which can be extended to copolymers with any topological architecture. By solving the self-consistent field equation set numerically, ordered morphologies of alpha, omega branched copolymers with H shaped, pi shaped and heteroarm architectures are simulated. Lamellae and hexagonal lattice phases obtained for H shaped and pi shaped respectively are consistent with the experiments. Furthermore, self-assembly of heteroarm-alpha, omega to branched copolymers((AB)C(AB)) are investigated, and six stable microphases are uncovered. It is found that microphase morphologies are determined by the composition of three species. And variation of volume fractions for side chains will not change the ordered structure if composition is fixed. Also, simulation reveals that the junction points lie on the microphase interfaces.
引用
收藏
页码：878 / 882
页数：5
相关论文
共 17 条
  • [1] Block copolymers - Designer soft materials
    Bates, FS
    Fredrickson, GH
    [J]. PHYSICS TODAY, 1999, 52 (02) : 32 - 38
  • [2] De Gennes P.-G, 1979, Scaling Concepts in Polymer Physics, P76
  • [3] Combinatorial screening of complex block copolymer assembly with self-consistent field theory
    Drolet, F
    Fredrickson, GH
    [J]. PHYSICAL REVIEW LETTERS, 1999, 83 (21) : 4317 - 4320
  • [4] STATISTICAL MECHANICS OF POLYMERS WITH EXCLUDED VOLUME
    EDWARDS, SF
    [J]. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1965, 85 (546P): : 613 - &
  • [5] Field-theoretic computer simulation methods for polymers and complex fluids
    Fredrickson, GH
    Ganesan, V
    Drolet, F
    [J]. MACROMOLECULES, 2002, 35 (01) : 16 - 39
  • [6] Monte Carlo simulations of the morphology of ABC star polymers using the diagonal bond method
    Gemma, T
    Hatano, A
    Dotera, T
    [J]. MACROMOLECULES, 2002, 35 (08) : 3225 - 3237
  • [7] Synthesis, characterization, and morphology of model graft copolymers with trifunctional branch points
    Gido, SP
    Lee, C
    Pochan, DJ
    Pispas, S
    Mays, JW
    Hadjichristidis, N
    [J]. MACROMOLECULES, 1996, 29 (22) : 7022 - 7028
  • [8] Self-assembly of star block copolymers by dynamic density functional theory
    He, XH
    Huang, L
    Liang, HJ
    Pan, CY
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (23): : 10508 - 10513
  • [9] Localizations of junction points of ABC 3-miktoarm star terpolymers
    He, XH
    Huang, L
    Liang, HJ
    Pan, CY
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (21): : 9861 - 9863
  • [10] THEORY OF INHOMOGENEOUS POLYMERS - FUNDAMENTALS OF GAUSSIAN RANDOM-WALK MODEL
    HELFAND, E
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1975, 62 (03): : 999 - 1005
12