Thermostability Study of Natural Polymer Microcapsules

Microcapsules represent a stand-alone system that has applicability in a multitude of fields. The raw materials for microcapsules are very varied and with different properties. In this paper, biodegradable raw materials from natural sources were used to create/develop microcapsules. The chemical-structural stability of microcapsules under working conditions is a factor that must be considered. The aims were to obtain microcapsules from the previously specified raw materials, to perform a microscopic characterization, to establish their dimensional profile as well as their thermal stability over a range of 25-100°C, in aqueous solution. The study of the thermal stability of microcapsules can provide information regarding the temperature of the environment in which they can be used, specifically, whether they can withstand in medical products, which are subjected to high thermal treatments (up to 100°C), at the same time being susceptible to degradation by chemical action, gradually releasing the active components they may contain.