Aggregation Properties of a Novel Class of Amphiphilic Cationic Polyelectrolytes Containing Gemini Surfactant Segments
文献类型：期刊论文
| 作者 | Li, Rongqiang1,2; Wei, Lubin1; Hu, Changchao2; Xu, Chengfeng2; Wang, Jinben2 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2010-10-07 |
| 卷号 | 114期号:39页码:12448-12454 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp102685w |
| 英文摘要 | A novel class of amphiphilic cationic polyelectrolytes, poly(A-co-G)s, comprising of gemini type surfactant segment 1,3-bis(N,N-dimethyl-N-dodecylammonium)-2-propylacrylate dibromide (G) and acryloyloxyethyl trimethyl ammonium chloride (A), were synthesized. Their aggregation properties were investigated by employing fluorescence spectroscopy, dynamic light scattering, transmission electron microscopy, and zeta-potential measurements. For comparison, a series of polyelectrolytes containing a traditional single alkyl chain surfactant unit (acryloyloxyethyl-N,N-dimethyl-N-dodecylammonium bromide (D)), poly(A-co-D)s, were also synthesized and investigated. It was found that the critical aggregation concentration (cac) of poly(A-co-G)s is much lower than that of poly(A-co-D)s. The huge interpolymer aggregates (with a hydrodynamic radius of >450 nm) occur in poly(A-co-G)s aqueous solution, and the size of aggregates increases with the increase of the molar content of the gemini-type surfmer segment and the concentration of the copolymer. The size of aggregates in poly(A-co-D)s aqueous solution is much smaller than poly(A-co-G)s, which also increases with the increase of the molar content of the single alkyl chain surfmer segment and the concentration of the copolymer. The results of aggregation number and charge density of aggregate in poly(A-co-G)s and poly(A-co-D)s indicate that the copolymers have a strong tendency toward interpolymer aggregation and the aggregates in poly(A-co-G)s are much more compact than those of poly(A-co-D)s. These results are interpreted in terms of the synergistic effects of double hydrophobic chains on the gemini surfactant unit. |
| 语种 | 英语 |
| WOS记录号 | WOS:000282209900002 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69543]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Rongqiang |
| 作者单位 | 1.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Colloid & Interface Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Rongqiang,Wei, Lubin,Hu, Changchao,et al. Aggregation Properties of a Novel Class of Amphiphilic Cationic Polyelectrolytes Containing Gemini Surfactant Segments[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2010,114(39):12448-12454. |
| APA | Li, Rongqiang,Wei, Lubin,Hu, Changchao,Xu, Chengfeng,&Wang, Jinben.(2010).Aggregation Properties of a Novel Class of Amphiphilic Cationic Polyelectrolytes Containing Gemini Surfactant Segments.JOURNAL OF PHYSICAL CHEMISTRY B,114(39),12448-12454. |
| MLA | Li, Rongqiang,et al."Aggregation Properties of a Novel Class of Amphiphilic Cationic Polyelectrolytes Containing Gemini Surfactant Segments".JOURNAL OF PHYSICAL CHEMISTRY B 114.39(2010):12448-12454. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。