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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-197 |
| Subject |
Interactions between water-soluble polymer and surfactant molecules studied by the excited-state proton transfer of pyranine |
| Authors |
Hyomin Kim, Han Gook Cho*, Byeong-Seo Cheong*
Department of Chemistry, Incheon National University, Korea
|
| Abstract |
The interactions of cationic surfactants, alkyltrimethylammonium bromide, with polymers in aqueous solutions have been studied by utilizing the excited-state proton transfer (ESPT) of pyranine (8-hydroxypyrene-1,3,6-trisulfonate) as a probe. The water-soluble polymers such as poly(vinyl alcohol), polyvinylpyrrolidone, and poly(acrylic acid) were used in the study. Fluorescence emission was observed from the protonated and deprotonated forms of pyranine. As the concentration of either a polymer or a surfactant varied in aqueous surfactant/polymer solutions, there were considerable changes in the fluorescence intensity ratios of the two bands and in the maximum emission wavelengths. These were related with the change in the critical association concentration of micelles, and the possible interactions between the surfactant and polymer were discussed. In addition, the effects of changing the chain length and molecular weight of the polymer were investigated. |
| E-mail |
kimgyals@naver.com |
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122nd General Meeting of the KCS