摘要
利用耗散粒子动力学方法研究了两嵌段共聚物在表面圆形图案诱导下的相行为.通过调节圆形诱导图案的半径和嵌段共聚物薄膜的厚度,体系出现了非常丰富的穿孔层状相结构(PLS).经过区分将这些结构分为4类,并用PLS-Ⅰ,PLS-Ⅱ,PLS-Ⅲ,PLS-Ⅳ表示.绘制了这些结构与圆形图案半径和薄膜厚度关系的相图,并分析了这些结构出现的原因和规律,为设计和发展嵌段共聚物功能薄膜材料提供理论支持.
Dissipative particle dynamics simulations were employed to study the phase behavior of diblock copolymer on the surface of substrate with the induction of circular patterns.Four types of perforated lamelar structures(PLS)were found by adjusting the radius of circular pattern and the thickness of film,which are named as PLS-Ⅰ,PLS-Ⅱ,PLS-Ⅲand PLS-Ⅳaccording to phase connectivity.The phase diagram was obtained by systematically changing circular radius and the thickness of film.Moreover,the mechanism of forming these structures was proposed.The result could provide theoretical supports for the design and development of diblock copolymer functional film materials.
作者
容婧婧
马兰
朱有亮
黄以能
孙昭艳
RONG Jingjing;MA Lan;ZHU Youliang;HUANG Yineng;SUN Zhaoyan(Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics,College of Physical Science and Technology,Yili Normal University,Yining 835000,China;State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;School of Physics,National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2018年第12期2805-2810,共6页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:21774129,21790340,21474111,11664042)
伊犁师范学院研究生课题(批准号:2016YSY026)资助
关键词
耗散粒子动力学方法
两嵌段共聚物
表面图案诱导
穿孔层状结构
Dissipative particle dynamics
Diblock copolymer
Surface pattern induction
Perforated lamellar structure
