Multibody Dissipative Particle Dynamics Study of the Composition Effect on the Morphology of Block Copolymer Thin Film

作者：Li Yan-Chun; Liu Hong; Huang Xu-Ri^*; Sun Chia-Chung

来源：Chemical Journal of Chinese Universities, 2011, 32(10): 2421-2426.

• Surface
• Multibody dissipative particle dynamics
• Block copolymer
• Thin film

We use multibody dissipative particle dynamics method to investigate the thin film formed by self-assembly of block copolymer on attractive surface under evaporation condition. We consider the composition effect on the morphology of diblock and triblock copolymer thin film. We obtain disorder and lamellar morphology and give the time evolution of the order parameter and the film thickness. The results reveal that the composition of block copolymer effects on the order parameter rather than the film thickness. If one of the compositions is shorter, it is easily to form disorder morphology with lower order parameter. On the other hand, it is easily to form lamellar morphology with higher order parameter.

• 出版日期2011-10-10
• 单位吉林大学