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Spontaneous Vesicle Formation in Aqueous Mixtures of Cationic Surfactants and Partially Hydrolyzed Polyacrylamide

✍ Scribed by Jian-bin Huang; Ying Zhu; Bu-yao Zhu; Run-kai Li; Hong-lan Fu

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
341 KB
Volume
236
Category
Article
ISSN
0021-9797

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✦ Synopsis

Spontaneous vesicle formation was observed in aqueous mixtures

of partially hydrolyzed polyacrylamide and single-tailed cationic surfactants. The influences of pH, addition of long-chain alcohols, variation of hydrocarbon chain length, and head group size of the cationic surfactants were investigated systematically. It was found that 30-50% hydrolyzed degree of polyacrylamide and cationic surfactants with 10 or 12 methylene groups are suitable for vesicle formation in the mixed aqueous systems at pH 9.2. Addition of long-chain alcohols was found to be helpful for vesicle formation in some cases. The vesicle stability was also investigated at various temperatures and amounts of ethanol addition.

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