Simulated annealing study of diblock copolymer thin films confined between two homogeneous surfaces

被引：52
|
作者：
Yin, YH
Sun, PC
Chen, TH
Li, BH [1 ]
Jin, QH
Ding, DT
Shi, AC
机构：
[1] Nankai Univ, Joint Res Coll, State Key Lab Funct Polymer Mat Adsorpt & Separat, Tianjin 300071, Peoples R China
[2] Nankai Univ, Tianjin Univ, Dept Phys, Tianjin 300071, Peoples R China
[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
来源：
CHEMPHYSCHEM | 2004年 / 5卷 / 04期
关键词：
annealing; copolymer; lamella; self-assembly; thin films;
D O I：
10.1002/cphc.200300999
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：540 / 548
页数：9
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