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中文摘要：
在自由能形式的格子Boltzman模型基础上,通过自洽场理论的引入,实现了对嵌段共聚物的模拟.首先,将本模型的模拟结果与动态自洽场的结果进行了比较并得到了一致的结果.应用此模型,研究了对称二嵌段共聚物微相分离后期的相区尺寸增长指数的影响因素.并探讨了分相后期,相区尺寸随时间的增长指数与高分子链长和Flory-Huggins相互作用参数的关系.模拟结果表明,相区的后期增长机理与Flory-Huggins相互作用参数关系不大.此外发现高分子链长的改变会影响相区尺寸增长指数,这与基于Ginzburg-Landau方程的模型结果不同.然而,链长的影响远小于流体黏度的影响,流体的黏度是影响相区后期增长指数的重要因素.
英文摘要：
In order to understand the coarsening of microdomains in symmetric diblock copolymers at the late stage,a model for block copolymers is proposed.By incorporating the self consistent field theory with the free energy approach Lattice Boltzmann model,hydrodynamic interactions can be considered.Compared with models based on Ginzburg-Landau free energy,this model does not employ phenomenological free energies to describe systems.The model is verified by comparing the simulation results obtained using this metho...
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