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Conformation of polyelectrolytes in poor solvents: Variational approach and quantitative comparison with scaling predictions

文献类型：期刊论文

作者Tang, Haozhe1,2; Liao, Qi3; Zhang, Pingwen1,2
刊名JOURNAL OF CHEMICAL PHYSICS
出版日期2014-05-21
卷号140期号:19
ISSN号0021-9606
DOI10.1063/1.4875895
英文摘要We present the results of variational calculations of a polyelectrolyte solution with low salt in poor solvent conditions for a polymer backbone. By employing the variation method, we quantitatively determined the diagram of the state of the polyelectrolyte in poor solvents as a function of the charge density and the molecular weight. The exact structure and diagram of the polyelectrolyte were compared to the scaling predictions of the necklace model developed by Dobrynin and Rubinstein [Prog. Polym. Sci. 30, 1049-1118 (2005); Macromolecules 32, 915-922 (1999); 34, 1964-1972 (2001)]. We find that the scaling necklace model may be used as a rather good estimation and analytical approximation of the exact variational model. It is also pointed out that the molecular connection of polymer is crucial for ellipsoid and necklace conformation. (C) 2014 AIP Publishing LLC.
语种英语
WOS记录号WOS:000336832700040
出版者AMER INST PHYSICS
源URL[http://ir.iccas.ac.cn/handle/121111/51247]  
专题中国科学院化学研究所
通讯作者Tang, Haozhe
作者单位1.Peking Univ, CAPT, LMAM, Beijing 100871, Peoples R China
2.Peking Univ, Sch Math Sci, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Beijing Natl Lab Mol Sci BNLMS, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat,Inst Chem, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Haozhe,Liao, Qi,Zhang, Pingwen. Conformation of polyelectrolytes in poor solvents: Variational approach and quantitative comparison with scaling predictions[J]. JOURNAL OF CHEMICAL PHYSICS,2014,140(19).
APA Tang, Haozhe,Liao, Qi,&Zhang, Pingwen.(2014).Conformation of polyelectrolytes in poor solvents: Variational approach and quantitative comparison with scaling predictions.JOURNAL OF CHEMICAL PHYSICS,140(19).
MLA Tang, Haozhe,et al."Conformation of polyelectrolytes in poor solvents: Variational approach and quantitative comparison with scaling predictions".JOURNAL OF CHEMICAL PHYSICS 140.19(2014).

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来源：化学研究所

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