Investigation on interaction between sodium dodecyl sulfate and polyacrylamide by electron spin resonance and ultraviolet spectrum
文献类型：期刊论文
| 作者 | Hai, MT; Han, BX; Yan, HK |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2001-05-31 |
| 卷号 | 105期号:21页码:4824-4826 |
| ISSN号 | 1089-5647 |
| DOI | 10.1021/jp003378s |
| 英文摘要 | The interaction between sodium dodecyl sulfate (SDS) and polyacrylamide (PAM) has been studied by electron spin resonance (ESR) and UV methods using 2,4-dinitrophenylhydrazone of 2,2,6,6-tetramethyl-4-piperidin-1-oxyl (DNPHTEMPO) as a probe. Our results confirm that micellization on the polymer chains occurs at a lower surfactant concentration (critical aggregation concentration (CAC)) than the critical micelle concentration (cmc) of SDS and that a large number of free surfactants are in equilibrium with bound surfactants in this micellization regime. Polymer-complexed micelles are formed by complexation of SDS micelles with PAM. Binding of the spin probe to the surfactant aggregates is revealed by a substantial increase of the apparent rotational correlation time (tau (C)) and a decrease of the nitrogen hyperfine splitting constant (AN) relative to the corresponding parameters for the free radical in bulk water. The micropolarity of the solution decreases with increasing SDS concentration. The polymer-micelle aggregates form a more compact structure at the binding sites, The two breakpoints of the SDS-PAM system, CAC and the polymer saturation point (PSP), were obtained from the maximum absorption bands lambda (max). |
| 语种 | 英语 |
| WOS记录号 | WOS:000169036800007 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76997]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, BX |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China 2.Zibo Univ, Dept Biol & Chem Engn, Zibo 255013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hai, MT,Han, BX,Yan, HK. Investigation on interaction between sodium dodecyl sulfate and polyacrylamide by electron spin resonance and ultraviolet spectrum[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2001,105(21):4824-4826. |
| APA | Hai, MT,Han, BX,&Yan, HK.(2001).Investigation on interaction between sodium dodecyl sulfate and polyacrylamide by electron spin resonance and ultraviolet spectrum.JOURNAL OF PHYSICAL CHEMISTRY B,105(21),4824-4826. |
| MLA | Hai, MT,et al."Investigation on interaction between sodium dodecyl sulfate and polyacrylamide by electron spin resonance and ultraviolet spectrum".JOURNAL OF PHYSICAL CHEMISTRY B 105.21(2001):4824-4826. |
入库方式： OAI收割
来源：化学研究所
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