MODIFIED SOYBEAN OIL AS A NONVOLATILE ADDITIVE FOR POLYMERS .2. ACIDSBONDED ON OIL

The commercial epoxidized and with butanol esterified soybean and sunf lower oil was by means of epoxy groups chemically modified with low-mo lecular compounds having a dissociating hydrogen. Compounds containing in their molecules nitrogen, sulfur, chlorine, bromine, and phosphoru s atoms were bonded on the oil, whereby it is possible to consider for most of them a special effect. The molecular mass increase of modifie d soybean oil was reached by transforming it into a magnesium,, calciu m, strontium, barium, zinc or bismuth salt. The thermal analysis has p roved that these materials can be used as nonvolatile additives for po lymers processed at enhanced temperatures, which is closely linked wit h the creation and protection of the environment. The conditions of th is general method for fixation of compounds on carriers of epoxidized groups, rate constants of reaction and the mechanism of its catalysis were discussed.