Photodegradative surfactants: photolyses of p-alkylbenzyltrimethylammonium and alkylbenzyldimethylammonium halides in aqueous solution
Authors:
- 19 August 2005
- journal article
- research article
- Published by Springer Nature in Photochemical & Photobiological Sciences
- Vol. 4 (10) , 835-839
Abstract
A series of benzyl-containing ammonium salts, p-alkylbenzyltrimethylammonium halides (CnBA: 1a–c) and alkylbenzyldimethylammonium halides (CnAB: 2a–d), have been prepared and their photodegradabilities in aqueous solutions have been compared. The photolytic decomposition proceeded by heterolytic and homolytic cleavages of the benzyl–nitrogen bond. The conversion yields were almost the same for all surfactants, whereas the product yields were slightly dependent on the alkyl-chain length. After irradiation, C8BA (1b) and C12BA (1c) were converted to non-surfactants, whereas C12AB (2c) and C16AB (2d) still remained surface-active. Their solution properties were concomitantly changed.Keywords
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