化工学报2013，Vol.64Issue(1)：268-274,7.DOI:10.3969/j.issn.0438-1157.2013.01.029
随机共聚高分子凝胶溶胀和体积相变行为的分子热力学模型
Molecular thermodynamic model for swelling and volume phase transition behavior of random copolymer gels
摘要
Abstract
Based on the lattice model of random polymer solution, a new molecular thermodynamic model for describing the swelling behavior of temperature and pH-sensitive random copolymer gels was developed. This model considers three contributions of chemical potential; mixing of different polymer and solvent, elasticity of polymer network, and ionic effect with Donnan equilibrium of ions distributed inside and outside gels and electrostatic interactions between the charges carried by polymer network and counter ions. Compared with other models, this model considers the composition of two polymers f. Two kinds of model parameters are included, which are the interaction energy parameters between polymer network and solvent eij, and a size parameter, which is the molecular weight of the network between two cross-linking points Mc. The results show that this model can describe the swelling behavior of temperature and pH-sensitive random copolymer gels by using fewer model parameters.关键词
随机共聚高分子凝胶/分子热力学模型/溶胀平衡/体积相变Key words
random copolymer gel/molecular thermodynamic model/swelling equilibrium/volume phase transition分类
化学化工引用本文复制引用
支东彦,练成,徐首红,黄永民,刘洪来..随机共聚高分子凝胶溶胀和体积相变行为的分子热力学模型[J].化工学报,2013,64(1):268-274,7.基金项目
国家自然科学基金项目(21076071,20990224) （21076071,20990224）
中央高校基本科研业务费项目. （）
