| Summary: | 碩士 === 國立雲林科技大學 === 化學工程與材料工程系 === 107 === The study of nanoaggregates formed by dioctadecyldimethylammonium bromide (DODAB) and vitamin C derivatives (VCD) including compound A (A) and compound B (B), was investigated. The nanoaggregates assessed regarding their phase transition behavior, molecular vibration and arrangement. Results revealed that DODAB/A and DODAB/B systems showed can form spherical structures, and all have chemical activity. In DODAB/A system, the A-less nanoaggregates showed better storage stability. When the content of B is more, it helps to enhance the storage stability of DODAB/B nanoaggregates. In the DODAB/A and DODAB/B systems, as the content of anionic surfactant increases, the intramolecular alignment of DODAB will be disturbed, and the phase transition behavior and molecular vibration will be changed.
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