Encapsulation of Vitamin C in Nylon 6,6 for Cosmetic Applications

Steven, Jeremy John (2020) Encapsulation of Vitamin C in Nylon 6,6 for Cosmetic Applications. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

Vitamin C is a widely used antioxidant ingredient in the cosmetic industry, however it tends to degrade very easily. This is because it reacts readily with reactive oxygen species, commonly found in any aqueous solution. In order to overcome this problem, microencapsulation of ascorbic acid in Nylon 6,6 was conducted. Microcapsules are generally known to be more chemically and mechanically stable when compared to regular reacted chemicals. Four polymerization methods were conducted, however due to time restrain not all analysis and procedures were achieved. Polymerization by evaporation at room temperature was unsuccessful, ascorbic acid degraded and synthesis of polymer was unsuccessful as well. Hence encapsulation was unsuccessful Polymerization by heating at room temperature was unsuccessful, ascorbic acid degraded and synthesis of polymer was uncertain.Hence encapsulation was unsuccessful. Polymerization by freeze drying at room temperature was uncertain, ascorbic acid did not degrade and synthesis of polymer was uncertain as well. Encapsulation is uncertain as no UV-vis analysis was conducted. Polymerization by chemical interfacial was not conducted however, based on theory shows the most promising results to obtain desired product. The percentage yield of polymerization by evaporation for cetyl alcohol, stearic acid, sorbitan monolaurate and polysorbate 80 are 100.22%, 102.47%, 102.90% and 102.86% respectively.The percentage yield of polymerization by heating for cetyl alcohol, stearic acid, sorbitan monolaurate and polysorbate 80 are 97.13%, 93.55%, 93.27% and 93.30% respectively.The percentage yield of polymerization by evaporation for cetyl alcohol, stearic acid, sorbitan monolaurate and polysorbate 80 are 92.92%, 87.63%, 83.53% and 92.83% respectively.