| MICELLIZATION STUDIES OF DODECYL BENZENESULFONIC ACID AND ITS INTERACTION WITH POLYVINYLPYRROLIDONE |
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| 作者姓名： | MohammadSaleemKhan ZarshadAli |
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| 作者单位： | NationalCentreofExcellenceinPhysicalChemistry,UniversityofPeshawar,Peshawar25120,Pakistan |
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| 摘 要： | Dodecyl benzenesulfonic acid (DBSA) surfactant was used in the present study to find the effect of concentration on its electrical conductance in solution from 293-323K above and below the critical micelle concentration (CMC). The micellization parameters i.e. degree of counter ion binding (β), aggregation number (n) and number of counter ion micelle(m) were measured. The interaction of DBSA with polyvinylpyrrolidone (PVP) was also studied at 293K throughconductance and surface tension measure ments. A number of important parameters i.e. critical aggregation concentration (CAC), Gibb‘s free energy (△G) and binding ratio (R) were determined and the effect of NaCl on the CAC and polymer saturation point (PSP) was also investigated.
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| 关 键 词： | 十二烷基苯磺酸 交互作用 聚乙烯吡咯烷酮 杂环化合物 化学结构 |
| 收稿时间： | 2003-10-20 |
| 修稿时间： | 2004-01-12 |
MICELLIZATION STUDIES OF DODECYL BENZENESULFONIC ACID AND ITS INTERACTION WITH POLYVINYLPYRROLIDONE |
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| MohammadSaleemKhan ZarshadAli.MICELLIZATION STUDIES OF DODECYL BENZENESULFONIC ACID AND ITS INTERACTION WITH POLYVINYLPYRROLIDONE[J].Chinese Journal of Polymer Science,2005,0(1):29-35. |
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| Authors: | Mohammad Saleem Khan Zarshad Ali |
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| Institution: | National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan |
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| Abstract: | Dodecyl benzenesulfonic acid (DBSA) surfactant was used in the present study to find the effect of concentration on its electrical conductance in solution from 293-323 K above and below the critical micelle concentration (CMC). The micellization parameters i.e. degree of counter ion binding (β), aggregation number (n) and number of counter ion micelle(m) were measured. The interaction of DBSA with polyvinylpyrrolidone (PVP) was also studied at 293 K through conductance and surface tension measure ments. A number of important parameters i.e. critical aggregation concentration(CAC), Gibb's free energy (AG) and binding ratio (R) were determined and the effect of NaCl on the CAC and polymer saturation point (PSP) was also investigated. |
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| Keywords: | Micellization PVP Interaction Dodecyl benzene sulfonic acid (DBSA) POLYVINYLPYRROLIDONE INTERACTION ACID STUDIES NaCl polymer saturation point free energy critical surface tension measure interaction polyvinylpyrrolidone micelle aggregation number degree counter binding |
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