Lattice Boltzmann study of hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers


Autoria(s): Song KX; Jia YX; Sun ZY; An LJ
Data(s)

2008

Resumo

By incorporating self-consistent field theory with lattice Boltzmann method, a model for polymer melts is proposed. Compared with models based on Ginzburg-Landau free energy, our model does not employ phenomenological free energies to describe systems and can consider the chain topological details of polymers. We use this model to study the effects of hydrodynamic interactions on the dynamics of microphase separation for block copolymers. In the early stage of phase separation, an exponential growth predicted by Cahn-Hilliard treatment is found. Simulation results also show that the effect of hydrodynamic interactions can be neglected in the early stage.

Identificador

http://ir.ciac.jl.cn/handle/322003/10233

http://www.irgrid.ac.cn/handle/1471x/147352

Idioma(s)

英语

Fonte

Song KX;Jia YX;Sun ZY;An LJ.Lattice Boltzmann study of hydrodynamic effects in lamellar ordering process of two-dimensional quenched block copolymers,JOURNAL OF CHEMICAL PHYSICS,2008,129(14 ):文献编号:144901

Palavras-Chave #DENSITY-FUNCTIONAL APPROACH #MEAN-FIELD #NONIDEAL GASES #BINARY FLUIDS #SPINODAL DECOMPOSITION #MICROPHASE SEPARATION #COMPLEX FLUIDS #LIQUID-GAS #EQUATION #PHASE
Tipo

期刊论文