Determination of the critical micellar temperature of F127 aqueous solutions at the presence of sodium bromide by cyclic voltammetry
文献类型：期刊论文
| 作者 | Li GB(李国宝)1; Hao JC(郝京诚)2; Li HG(李洪光)3 ; Fan DW(范大伟)1; Sui WP(隋卫平)1
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| 刊名 | Colloid and Polymer Science
 |
| 出版日期 | 2015 |
| 卷号 | 293期号:3页码:787-796 |
| 关键词 | Pluronic F127 Critical micellar temperature Cyclic voltammetry Viscosity Diffusion |
| ISSN号 | 0303-402X |
| 通讯作者 | 隋卫平 ; 李洪光 |
| 英文摘要 | The properties of Pluronic F127 aqueous solutions with the variation of concentration and temperature were studied by cyclic voltammetry at the presence of sodium bromide. By this method, the relationship between the peak currents of electroactive probe, 2, 2, 6, 6-tetramethyl-1-piperidinyloxy (TEMPO), and the viscosity of F127 aqueous solutions within some temperature ranges was discussed, and the diffusion coefficient (D) of TEMPO in F127 aqueous solutions at various concentrations under different temperatures was determined. The critical micellar temperature (CMT) of F127 aqueous solution at various concentrations can be obtained from the curve of the peak current i p against the square root of reciprocal viscosity (1/η)1/2 and from the curve of logarithm diffusion coefficient (logD) of TEMPO as a function of reciprocal temperature (1/T). All the results are in good agreement with the results from 1H NMR measurements. Besides, the thermodynamic parameters such as diffusion activation energy (E D) and hydrodynamic radius (R H) can be also obtained from the above two curves. A new method was introduced to determine the CMT of copolymer systems, which is simple, quick, and accurate. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the International Science Cooperation Project of Shandong Province, China (2012GHZ20205);the Hundred Talents Program of Chinese Academy of Sciences (Y20245YBR1);the Doctor Foundation of University of Jinan (No. XBS1204) |
| 语种 | 英语 |
| WOS记录号 | WOS:000350367200011 |
| 源URL | [http://210.77.64.217/handle/362003/18359]  |
| 专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 |
| 作者单位 | 1.Univ Jinan, Sch Chem & Chem Engn, Key Lab Chem Sensing & Anal Univ Shandong, Jinan 250022, Peoples R China 2.Shandong Univ, Key Lab Colloid and Interface Chem & Key Lab Special Aggregated Mat,, Minist Educ, Jinan 250100, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li GB,Hao JC,Li HG,et al. Determination of the critical micellar temperature of F127 aqueous solutions at the presence of sodium bromide by cyclic voltammetry[J]. Colloid and Polymer Science,2015,293(3):787-796. |
| APA | Li GB,Hao JC,Li HG,Fan DW,&Sui WP.(2015).Determination of the critical micellar temperature of F127 aqueous solutions at the presence of sodium bromide by cyclic voltammetry.Colloid and Polymer Science,293(3),787-796. |
| MLA | Li GB,et al."Determination of the critical micellar temperature of F127 aqueous solutions at the presence of sodium bromide by cyclic voltammetry".Colloid and Polymer Science 293.3(2015):787-796. |
入库方式： OAI收割
来源：兰州化学物理研究所
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