Macromolecular Research, Vol.15, No.2, 147-153, March, 2007
Synthesis, End-Functionalization and Characterization of Hyperbranched Polysiloxysilanes from AB3 Type Monomer
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Hyperbranched polysiloxysilanes (HBPSs), with a variety of terminal functional groups (vinyl, epoxy, carboxyl and hydroxyl), were synthesized by the self-polymerization of an AB3 type monomer of tris(dimethylvinylsiloxy) silane, with subsequent end-functionalizations, such as epoxidation and radical addition reaction, respectively. The ratio of the α- and β-addition linkages in the HBPS polymerized by hydrosilylation of the AB3 monomer was found to be approximately 1 to 3. The thermal stability and solubility were affected by the terminal functional groups.
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