NOVEL ORGANOPOLYSILOXANE COMPOUND HAVING ETHYNYL GROUPS, METHOD FOR PREPARING LINEAR ORGANOPOLYSILOXANE COMPOUND HAVING ETHYNYL GROUPS AT BOTH TERMINALS OF MOLECULAR CHAIN, METHOD FOR PREPARING ORGANOSILOXANE POLYMER HAVING ALKOXYSILYL-ETHYLENE GROUP AT TERMINAL, ROOM TEMPERATURE CURABLE COMPOSITION AND MOLDED PRODUCT WHICH IS CURED PRODUCT THEREOF

摘要

The present invention relates to an organopolysiloxane compound which is either a linear or a branched, and having at least one unit of the following formula (1) as a partial structure, and according to this compound, a novel polyorganosiloxane compound having an ethynyl group, and a method for preparing a linear organopolysiloxane compound having ethynyl groups at both terminals of a molecular chain which can easily adjust a polymerization degree, and excellent in productivity can be provided.;