Developing coarse-grained force fields for PNIPAM single chain from the atomistic model
A coarse-grained (CG) model of Poly (N -isopropylacryl-amide) (PNIPAM, a kind of thermo-sensitive polymer with widely application) single chain at high temperature is developed from atomistic simulation using Iterative Boltzmann Inversion (IBI) method. The specified structural property of PNIPAM is well represented using this CG single chain model. But we find that this model cannot apply to lower temperature. We analyze the temperature effect on this CG model and some limitations of the IBI method. The results show the extensibility in wide temperature applicability of this model need to be improved.
component PNIPAM Iterative Boltzmann Inversion temperature
Zilu Wang Xuehao He
Department of Polymer Science and Engineering School of Chemical Engineering and Technology,Tianjin University 300072 Tianjin,China
国际会议
北京
英文
1-4
2009-06-11(万方平台首次上网日期,不代表论文的发表时间)