Autor: |
Rózycka-Roszak, B., Walkowiak, U., Witek, S., Przestalski, S. |
Zdroj: |
Colloid & Polymer Science; September 1989, Vol. 267 Issue: 9 p831-833, 3p |
Abstrakt: |
1H-NMR studies were carried out for solution of amphiphilic betaine ester derivatives (of the general formula (CH3)3N+CH2COOCn H2n+1Cl- (V-n), wheren=10, 12, 14, and 16) andn-dodecyltrimethylammonium chloride (I-12). The spectra were taken at concentrations above and below critical micelle concentrations and chemical shifts were analyzed. It was stated that micelles are hydrated at the depth of the two CH2 groups in the case ofV-n and the CH2COO group in the case ofI-12. Therefore, the CH2COO group during the micellization behaves as if it were CH2CH2 group. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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