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  • AIP Publishing  (2)
  • Chen, Jie  (2)
  • Asia - CrossAsia  (2)
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  • AIP Publishing  (2)
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  • Asia - CrossAsia  (2)
  • 1
    Online Resource
    Online Resource
    Microphase Separation of Star-diblock Copolymer Films: a Dissipative Particle Dynamics Simulation
    AIP Publishing ; 2010
    In:  Chinese Journal of Chemical Physics Vol. 23, No. 6 ( 2010-12-01), p. 738-744
    Details
    In: Chinese Journal of Chemical Physics, AIP Publishing, Vol. 23, No. 6 ( 2010-12-01), p. 738-744
    Abstract: The microphase-separating behaviors of two types of star-diblock copolymers (Ax)4(By)4 and (AxBy)4 in thin films are studied using the simulation technique of dissipative particle dynamics. A variety of ordered mesostructures have been observed and the simulated phase diagrams show obvious symmetries for the (Ax)4(By)4 films and asymmetries for the (AxBy)4 films, besides, it is easier for the (Ax)4(By)4 than for the (AxBy)4 to carry out microphase separation under the same conditions, which has been recognized in bulk and can be ascribed to the structural difference between the two types of star copolymers. There are some correspondences between the mesostructures formed in the film and those formed in bulk at the same composition fraction. Decreasing the thickness of film and strengthening the A-B repulsion both help the mesostructures enhance the degree of order. Composition fraction dependences of the mean-square radius of gyration in the two types of star copolymer films are almost contrary, which can be attributed to the differences in their respective structures. These findings can provide a guide to designing novel microstructures involving star-diblock copolymers via geometrical confinement.
    Type of Medium: Online Resource
    ISSN: 1674-0068 , 2327-2244
    URL: Article
    DOI: 10.1088/1674-0068/23/06/738-744
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2010
    detail.hit.zdb_id: 2381472-X
    SSG: 6,25
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Dissipative Particle Dynamics Simulation of Microscopic Properties in Diblock Copolymer Films
    AIP Publishing ; 2010
    In:  Chinese Journal of Chemical Physics Vol. 23, No. 3 ( 2010-06-01), p. 274-280
    Details
    In: Chinese Journal of Chemical Physics, AIP Publishing, Vol. 23, No. 3 ( 2010-06-01), p. 274-280
    Abstract: Mean-square bond length, root-mean-square end-to-end distance and gyration radius in diblock copolymer films have been studied by dissipative particle dynamics simulations. Results show evident linear trends of any property separately with the thickness of film, the interaction between particles of different types, the repulsion between particle and boundary, except for the dependence of the variations of mean-square bond length on the thickness of film, which exhibits as a wave trend. What's more, the varying trends of mean-square bond length and root-mean-square end-to-end distance can correspond to each other. The density distribution of either component in diblock copolymer film can be controlled and adjusted effectively through its interaction with boundary.
    Type of Medium: Online Resource
    ISSN: 1674-0068 , 2327-2244
    URL: Article
    DOI: 10.1088/1674-0068/23/03/274-280
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2010
    detail.hit.zdb_id: 2381472-X
    SSG: 6,25
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
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