Synthesis of a new hyperbranched poly(silylenevinylene) with ethynyl functionalization

Hydrosilylation polymerization of methyldiethynylsilane was used to prepare organosilicon hyperbranched polymer possessing ethynyl groups. The structural properties and nature of the polymer were analyzed using NMR spectroscopy. The thermal stability of the crosslinked polymer was demonstrated by thermogravimetric analysis in both air and nitrogen. The inherent nature of the ethynyl group revealed the possibility of applications of chemical functionalizations on the polymer.