ICCAS OpenIR
Specific F- binding to phenyl ring of aromatic polymers
Xu, Ling1,2; Li, Xin2; Yuan, Liyong2; Zhai, Maolin2; Peng, Jing2; Li, Jiuqiang2
2009-10-01
Source PublicationJOURNAL OF FLUORINE CHEMISTRY
ISSN0022-1139
Volume130Issue:10Pages:959-965
AbstractMost of the hydrogels deswell more remarkably in F- containing solutions than in other monovalent anion containing solutions. However, significant deswelling followed by abnormal reswelling of polymer gel in KF solutions with increasing F- concentration was observed in a series of polymer gels consisted of phenyl rings, for instance, poly(styrene sulfonic acid) (PSSA), hydroxypropyl methylcellulose phthalate (HPMCP) and poly(4-vinyl phenol) (P4VPh) gel. Driving force of this phenomenon was studied to reveal the specific interactions involved in the aqueous systems of aromatic polymers. Elemental analysis and XPS results suggest that F- is embedded to the gel by the physical adsorption of KF, as well as the interactions between phenyl ring and F-. Further theoretical calculations revealed that the interaction may be (phenyl)CH center dot center dot center dot F-(H2O)(n) interaction, which is stronger than (phenyl)CH center dot center dot center dot(H2O)(n) hydrogen bond. This kind of interaction decreases with the increasing water number and it is invalid when the surrounding water number is more than 5 for the phenol-F-(H2O)(n). system. Therefore, we conclude that F- could bind to phenyl ring via such (phenyl)CH center dot center dot center dot F-(H2O)(n) interaction in solutions with low hydrophilicity. The strong polarization effect of F- and (phenyl)CH center dot center dot center dot F-(H2O)(n) interaction are two important driving forces for the reswelling of gels. (C) 2009 Elsevier B.V. All rights reserved.
KeywordAromatic Polymer Gels F- Adsorption Phase Behavior (Phenyl)Ch Center Dot Center Dot Center Dot F-(H2o)(n)
DOI10.1016/j.jfluchem.2009.07.014
Indexed BySCI
Language英语
WOS IDWOS:000271345400015
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68270
Collection中国科学院化学研究所
Corresponding AuthorXu, Ling
Affiliation1.Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, BNLMS, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Xu, Ling,Li, Xin,Yuan, Liyong,et al. Specific F- binding to phenyl ring of aromatic polymers[J]. JOURNAL OF FLUORINE CHEMISTRY,2009,130(10):959-965.
APA Xu, Ling,Li, Xin,Yuan, Liyong,Zhai, Maolin,Peng, Jing,&Li, Jiuqiang.(2009).Specific F- binding to phenyl ring of aromatic polymers.JOURNAL OF FLUORINE CHEMISTRY,130(10),959-965.
MLA Xu, Ling,et al."Specific F- binding to phenyl ring of aromatic polymers".JOURNAL OF FLUORINE CHEMISTRY 130.10(2009):959-965.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, Ling]'s Articles
[Li, Xin]'s Articles
[Yuan, Liyong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Ling]'s Articles
[Li, Xin]'s Articles
[Yuan, Liyong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Ling]'s Articles
[Li, Xin]'s Articles
[Yuan, Liyong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.