Specific F- binding to phenyl ring of aromatic polymers
文献类型：期刊论文
| 作者 | Xu, Ling1,2; Li, Xin2; Yuan, Liyong2; Zhai, Maolin2; Peng, Jing2; Li, Jiuqiang2 |
| 刊名 | JOURNAL OF FLUORINE CHEMISTRY
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 130期号:10页码:959-965 |
| 关键词 | Aromatic Polymer Gels F- Adsorption Phase Behavior (Phenyl)Ch Center Dot Center Dot Center Dot F-(H2o)(n) |
| ISSN号 | 0022-1139 |
| DOI | 10.1016/j.jfluchem.2009.07.014 |
| 英文摘要 | Most 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000271345400015 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68269]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, Ling |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：化学研究所
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