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Depletion phenomenon in diblock copolymer films: a dissipative particle dynamics simulation |
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| Authors: | Yi Xu Jian Feng Zhang Zhang Yong Wang Jie Chen Xian Zhu |
| Affiliation: | 1. Department of Chemical Engineering and Technology , School of Environmental and Chemical Engineering, Shanghai University , Shanghai, 200444, P.R. China tree2000xy@shu.edu.cn;3. Department of Chemistry and Life Science , Chuzhou University , Chuzhou, 239012, Anhui Province, P.R. China;4. Department of Chemical Engineering and Technology , School of Environmental and Chemical Engineering, Shanghai University , Shanghai, 200444, P.R. China |
| Abstract: | A tentative simulation study has been carried out on the depletion phenomenon in diblock copolymer films through dissipative particle dynamics technology. Results indicate that a depletion layer appears in nearly all the systems with strong interaction between different components, accompanied with weak interaction between the component and the boundary. The system temperature plays a dominant role in the thickness of the depletion layer, on which the component fraction also has an effect to a certain extent. The findings can give support to relevant application processes. |
| Keywords: | depletion phenomenon diblock copolymer films dissipative particle dynamics |