Abstract
The branched polysiloxane polymers in which the trifunctional branch point labeled with phenyl group, were prepared from hexamethyldisiloxane, octamethylcyclotetrasiloxane and phenyltrichlorosilane. The polymers were fractionated from MEK solution into six parts using methanol as precipitating agent.The number of branching point in each fraction was measured from the absorbance in ultraviolet spectrum. It was found that the number of branch points per unit volume or weight of polymer are about same in all fractions and distribution of branching points in polymer may be independent to the degree of polymerization.
