Simulated Annealing Study of Diblock Copolymer Thin Films Confined between Two Homogeneous Surfaces Academic Article uri icon

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abstract

  • Thin films of symmetric diblock copolymers confined between two parallel surfaces have been systematically investigated by means of simulated annealing on a simple cubic lattice. The study was carried out for systems with different film thicknesses and surface-polymer interactions. Very regular equilibrium morphologies of lamella are formed in almost all cases. The dependence of lamellar orientations, total energy, chain-conformation entropy, and free energy of the confined films on the film thickness and the strength of surface-polymer interactions has been studied systematically. The influence of packing frustration on morphology is observed and the mechanisms of lamellar orientations are investigated.

authors

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

publication date

  • April 19, 2004