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Conformational Study on Sol-Gel Transition in Telechelic Polyelectrolytes Solutions
Zhang, Ran1,2; Shi, Tongfei1; An, Lijia1; Sun, Zhaoyan1; Tong, Zhen3
2010-03-18
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume114Issue:10Pages:3449-3456
AbstractA special kind of associating polyelectrolytes, telechelic polyelectrolytes, composed of a flexible linear polyelectrolyte and short hydrophobic blocks at both ends, is investigated by means of Monte Carlo simulations ill aqueous media. It is found that the interplay between hydrophobic attraction and the long-range electrostatic interaction as well as the counterion distribution exerts a major influence on the chain conformations (two basic conformations: loop and nonloop), association behavior (loop association contributes to loop conformation; free, dangling, and bridge chains contribute to nonloop conformations), and the forming of clusters. At a concentration close to the overlapping concentration phi*, the Clusters are found to be further connected by bridge chains under strong hydrophobic interaction, forming a 3D network. In addition, increasing Coulombic interaction strength is in favor of the formation of a gel network. With increasing Coulombic interaction strength, first chains tend to extend and then tend to collapse due to the screening originating from the counterion condensation layer.
DOI10.1021/jp9092404
Indexed BySCI
Language英语
WOS IDWOS:000275328400005
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69976
Collection中国科学院化学研究所
Corresponding AuthorShi, Tongfei
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.S China Univ Technol, Res Inst Mat Sci, Guangzhou 510641, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ran,Shi, Tongfei,An, Lijia,et al. Conformational Study on Sol-Gel Transition in Telechelic Polyelectrolytes Solutions[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2010,114(10):3449-3456.
APA Zhang, Ran,Shi, Tongfei,An, Lijia,Sun, Zhaoyan,&Tong, Zhen.(2010).Conformational Study on Sol-Gel Transition in Telechelic Polyelectrolytes Solutions.JOURNAL OF PHYSICAL CHEMISTRY B,114(10),3449-3456.
MLA Zhang, Ran,et al."Conformational Study on Sol-Gel Transition in Telechelic Polyelectrolytes Solutions".JOURNAL OF PHYSICAL CHEMISTRY B 114.10(2010):3449-3456.
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