中国物理B ›› 2011, Vol. 20 ›› Issue (8): 83601-083601.doi: 10.1088/1674-1056/20/8/083601

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Surface-field-induced effects on morphologies of lamella-forming diblock copolymers in nanorod arrays

李士本1, 章林溪1, 王向红2, 梁好均3   

  1. (1)Department of Physics, Wenzhou University, Wenzhou 325035, China; (2)Department of Physics, Wenzhou Vocational and Technical College, Wenzhou 325035, China; Department of Physics, Wenzhou University, Wenzhou 325035, China; (3)Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2010-12-03 修回日期:2011-03-18 出版日期:2011-08-15 发布日期:2011-08-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 20374050, 20934004, 21074096, 50773072, and 90403022), the Outstanding Youth Fund of China (Grant No. 20525416), the National Basic Research Program of China (Grant No. 2005CB623800), Program for New Century Excellent Talents in University (Grant No. NCET-05-0538), the Natural Science Foundation of Zhejiang Province (Grant Nos. Y4090174 and Y6100033), and the Science Technology Development Plan of Wenzhou City, China (Grant No. H20080041).

Surface-field-induced effects on morphologies of lamella-forming diblock copolymers in nanorod arrays

Wang Xiang-Hong(王向红)a)b)†, Li Shi-Ben(李士本)b), Zhang Lin-Xi(章林溪)b), and Liang Hao-Jun(梁好均)c)   

  1. a Department of Physics, Wenzhou Vocational and Technical College, Wenzhou 325035, China; b Department of Physics, Wenzhou University, Wenzhou 325035, China; c Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • Received:2010-12-03 Revised:2011-03-18 Online:2011-08-15 Published:2011-08-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 20374050, 20934004, 21074096, 50773072, and 90403022), the Outstanding Youth Fund of China (Grant No. 20525416), the National Basic Research Program of China (Grant No. 2005CB623800), Program for New Century Excellent Talents in University (Grant No. NCET-05-0538), the Natural Science Foundation of Zhejiang Province (Grant Nos. Y4090174 and Y6100033), and the Science Technology Development Plan of Wenzhou City, China (Grant No. H20080041).

摘要: The surface-induced effect on the morphologies of lamella-forming diblock copolymers in nanorod arrays is studied by using the self-consistent field theory. In the simulation study, a rich variety of novel morphologies are observed by variations in the strength of the surface field for the diblock copolymers. Different surface-field-induced effects are examined for the diblock copolymers in the arrays with distinct preferential surfaces. It is observed that the majority-block preferential surfaces have more obvious induced effects than those of minority-block preferential surfaces. The strong surface fields exhibit different behaviours from those observed in the weak surface fields, by which the morphologies possess cylindrical symmetries. Results from this research deepen the knowledge of surface-induced effects in a confinement system, which may aid the fabrication of polymer-based nanomaterials.

关键词: diblock copolymer, surface-induced effect, morphology, nanorod array

Abstract: The surface-induced effect on the morphologies of lamella-forming diblock copolymers in nanorod arrays is studied by using the self-consistent field theory. In the simulation study, a rich variety of novel morphologies are observed by variations in the strength of the surface field for the diblock copolymers. Different surface-field-induced effects are examined for the diblock copolymers in the arrays with distinct preferential surfaces. It is observed that the majority-block preferential surfaces have more obvious induced effects than those of minority-block preferential surfaces. The strong surface fields exhibit different behaviours from those observed in the weak surface fields, by which the morphologies possess cylindrical symmetries. Results from this research deepen the knowledge of surface-induced effects in a confinement system, which may aid the fabrication of polymer-based nanomaterials.

Key words: diblock copolymer, surface-induced effect, morphology, nanorod array

中图分类号:  (Macromolecules and polymer molecules)

  • 36.20.-r
61.25.hk (Polymer melts and blends)