期刊
CHEMPHYSCHEM
卷 5, 期 4, 页码 540-548出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.200300999
关键词
annealing; copolymer; lamella; self-assembly; thin films
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 ore 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.
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