Simulated annealing study of asymmetric diblock copolymer thin films Academic Article uri icon

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abstract

  • We report a simulated annealing study of the morphology of asymmetric diblock copolymer thin films confined between two homogeneous and identical surfaces. We have focused on copolymers that form a gyroidal morphology in the bulk. The morphological dependence of the confined films on the film thickness and the surface-polymer interaction has been systematically investigated. From the simulations it is found that much richer morphologies can form for the gyroid-forming asymmetric diblock copolymer thin films, in contrast to the lamella-forming symmetric and cylinder-forming asymmetric diblock copolymer films. Multiple morphological transitions induced by changing the film thickness and polymer-surface interactions are observed.

authors

  • Yin, Yuhua
  • Sun, Pingchuan
  • Jiang, Run
  • Li, Baohui
  • Chen, Tiehong
  • Jin, Qinghua
  • Ding, Datong
  • Shi, An-chang

publication date

  • May 14, 2006