Computer Simulation of The Inducing Effects on the Phase Morphology of PS-b- PMMA Copolymers
The phase morphologies of three groups of designed polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA)copolymers were studied at 383,413 and 443 K by mesoscopic simulations.Eighteen patterned surfaces of four series were designed and designated as ci co gra and rg to study their influence on changing the microscopic phase morphology of copolymers.The degree of phase separation depended on the structures of copolymers,the topography of surfaces and the simulation temperatures.When the triblock copolymer with surfaces induced was composed of the same component at both ends and had larger PS segment percentage,it would present higher values of order parameter,that was, ABA showed the highest, AB the second high and BAB the last,the values of order parameter of the long chains were higher than those of the short ones,except the situation with co-4432 and co-8832 surfaces induced.However,the co-4432 and co-8832 surfaces performed the most intensive extent of inducing effect on changing the phase morphology of PS-b-PMMA copolymers.Temperature was a less effective influencing factor,compared with the others; but it was an important role in the extent of changing the phase morphology.
Inducing effect PS-b-PMMA copolymer phase morphology
Jianquan Li Dan Mu
Photoelectric Engineering College Zaozhuang University, Zaozhuang, China,277160 College of Chemistry Chemical Engineering and Materials Science Zaozhuang University,Zaozhuang, Chin
国际会议
沈阳
英文
726-730
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）