PHOSPHORUS-, SILICON- AND CHLORINE CONTENT OLIGOMERS, METHOD FOR THEIR PREPARING AND APPLICATION

摘要

The oligomers are used as plasticisers in processing elastomer blends. The method for the synthesis of the oligomers enables the preparation of products with varying contents of phosphorus and silicon resulting in obtaining a wider range of plasticisers for elastomer blends. Oligomers with a general formula: <IMAGE> in which X stands for hydrogen atom, methyl, phenyl or methoxy group, Y means methyl or phenyl radical and the value of n ranges between 2 and 7, are obtained by reacting the respective methyl esters of phosphonic or phosphoric acid with dimethyl or diphenyldichlorosilane at a molar ratio of 1:1 and temperature 30-100 degrees C.