学术报告: Self-Assembly of Block Copolymers, An-Chang Shi,7月30日(星期五)4:

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应用数学学术报告之二十三
主  题：Self-Assembly of Block Copolymers
主讲人：An-Chang Shi
（Department of Physics and Astronomy，McMaster University）
      
时  间：7月30日(星期五)4:00-5:00
地  点： 北京大学理科一号楼1418M
Tea Time: 3：30－4：00
地  点：  北京大学理科一号楼1384E
主  办： 北京大学数学研究所
北京大学数学科学学院
电  话： 010-62759090

摘要：Due to their amphiphilic nature, block copolymers form a variety of ordered microphases. The phase behavior of diblock copolymer melts has attracted considerable experimental and theoretical attention. Theoretical studies of block copolymer phase behavior have been mostly within mean-field
approximation. A theoretical framework beyond the mean-field approximation
has been developed to study the stability of, and the kinetic pathways between, the ordered phases. After a brief survey of the block copolymer phase behavior, I will use two examples to illustrate the application of the theory to block copolymer systems. (1) The Gaussian fluctuation theory allows the study of spinodal lines, fluctuation modes, and scattering functions of the ordered phases. (2) The mean field theory allows the study of nucleation in order-order phase transitions.

　　

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Liuwen
Center for Computational Science and Engineering
Peking University
Beijing,100871
P.R.China

liuwen@pku.edu.cn
Tel:86-10-62759090
Fax:86-10-62767146
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