Simulated annealing study of morphological transitions of diblock copolymers in solution Academic Article uri icon

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abstract

  • The simulated annealing method was applied to study the self-assembling process of diblock copolymers in selective solvents for one block. The simulation results illustrated that the morphologies of the copolymer aggregates strongly depend on the interactions between the core-forming blocks and the solvents and on the length of the corona-forming blocks. Multiple morphological transitions were observed in one system. The transition sequence (disordered state-spherical micelles-short rodlike micelles-long rodlike micelles-onionlike aggregates) was observed for copolymers with increasing core-solvent interaction. Similar transitions were observed with the decrease of the length of the corona-forming blocks. The mechanisms of these transitions are investigated. The simulation results are compared with experiments and other simulations.

authors

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

publication date

  • May 22, 2005