科研之友
微信
新浪微博
Facebook
分享链接
摘要
The contribution of neutral polymer brush to the curvature elasticity of the grafting surface is investigated theoretically. Using self-consistent field theory, we accurately evaluate the dependence of bending modulus on parameters including chain length, Flory-Huggins parameter and grafting density and reveal the importance of solvent. The results show that the brush-induced bending modulus follows a complex dependence on grafting density and Flory-Huggins parameter, while it obeys a simple power law with chain length as N-3. The method is further applied to calculate the polymer brush's contribution to the elastic properties of PEG-grafted lipid monolayers.
- 出版日期2015
- 单位北京大学
