摘要
本文利用模拟退火方法模拟了双亲双嵌共聚物在选择性溶剂中的自组装过程 .研究了溶剂和聚合物之间的相互作用对处于溶液中的双嵌段共聚物聚集体的形状和大小的影响 .同时考察了球状 -杆状胶束之间的转变机制 .模拟结果表明 ,当溶剂和疏水嵌段之间的相互作用较小时 ,聚集物的形态是球状胶束 ,而且随着相互作用的增加 ,球状胶束的聚集数增加 .当溶剂和疏水嵌段之间的相互作用增加时 ,聚集物的形态将由球状变为杆状 。
The simulated annealing method is used to study the self assembly process of the amphiphilic diblock copolymer in selective solvents. The influence of the interactions between the solvent and the polymer on the shape and size of diblock copolymer aggregates in solution is studied, and the mechanisms of sphere to rod transition are investigated. It is shown that sperical micells are formed for smaller interacton between the solvent and hydrophobic blocks and that the morphology of the aggregate changes from spheres to rods, and rods to onions as the interacton increases. The simulation result is consisent with Eisenberg's group's experiment.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第1期16-21,共6页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
教育部南开大学
天津大学科技合作基金资助项目
国家自然科学基金资助项目(2 0 2 740 2 0
2 0 3 740 3 1
2 0 3 73 0 2 9)
高等学校骨干教师资助计划项目(GG-70 3 -1 0 0 5 5 -1 0 0 8)
关键词
双亲嵌段共聚物
自组装
模拟退火
amphiphilic diblock copolymer
self assembling
simulated annealing
