学术报告

Theoretical Study on Phase Transitions in Polymers

发布时间:2018-04-16 09:57

报告题目:Theoretical Study on Phase Transitions in Polymers

报 告 人:苗兵 副教授 中国科学院大学

报告时间:2018年4月19日(星期四)下午2点

报告地点:物理科技楼101室


报告摘要:As well established in statistical physics, two types of phase transitions exist in nature, namely, the first-order and the continuous transitions. Both types occur in polymers, which are addressed in this talk theoretically utilizing the coarse-grained, continuous field theory. We will stress the effects of chain connectivity, interaction range, and confining boundaries, through modifying the fluctuation spectrum of the system, on the phase transition behaviors. Specific model systems will include polymer solutions/blends, Diblock copolymer melts, polyelectrolyte solutions. After a survey on the first-order OOT and the continuous ODT in the mean-field level, we will move beyond mean-field theory to the discussion of fluctuation effects in these systems utilizing a self-consistent, one-loop renormalized theory. 


报告人简介:苗兵,2006年博士毕业于中科院化学所高分子物理理论组。2006年5月-2008年9月先后在加拿大圣弗朗西斯泽维尔大学(St. Francis Xavier University)和圭尔夫大学(University of Guelph)物理系做博士后。 2008年10月-2011年2月在德国马普高分子研究所 (Max Planck Institute for Polymer Research)理论组做博士后。2011年2月回国后在中国科学院大学材料学院任副教授至今。研究领域为软物质/高分子物理理论,近年来关注聚电解质物理、涨落诱导相互作用等方向。