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Dissipative particle dynamics study on the multicompartment micelles self-assembled from the mixture of diblock copolymer poly(ethyl ethylene)-bolck-poly(ethylene oxide) and homopolymer poly(propylene oxide) in aqueous solution
writer:Ying Zhao, Li-Yan You, Zhong-Yuan Lu*, Chia-Chung Sun
keywords:Dissipative particle dynamics
source:期刊
specific source:Polymer Volume: 50 Issue: 22 Pages: 5333-5340 Published: 2009
Issue time:2009年
Dissipative particle dynamics (DPD) method is applied to model the self-assembly of diblock copolymer poly(ethyl ethylene)-block-poly(ethylene oxide) (PEE-b-PEO) and homopolymer poly(propylene oxide) (PPO) in aqueous solution. In this study, several segments are coarse-grained into a single simulation bead based on the experimental density. For the self-assembly of pure diblock copolymer PEE-b-PEO in dilute solution, the DPD simulation results are in good agreement with experimental data of micelle morphologies and sizes. The chain lengths of the block copolymers and the volume ratios between PPO and PEE-b-PEO are varied to find the conditions of forming multicompartment micelles. The micelles with core–shell–corona structure and the micelles with two compartments are both formed from the mixture of PEE-b-PEO and PPO in aqueous solution.