Method of preparing condensation cross-linked particles

A method of preparing condensation cross-linked particles in an emulsion, said method comprising the steps of:

• A. providing a first linear reactant having two unsaturated carbon-carbon moieties;
• B. providing a second linear reactant having two Si—H moieties;
• C. providing a third reactant having at least one condensable reactive group and having up to two unsaturated carbon-carbon moieties or Si—H moieties with the proviso that the third reactant has at least one unsaturated carbon-carbon moiety or Si—H moiety;
• D. providing a hydrosilylation catalyst;
• E. providing a polar liquid;
• F. combining the first, second, and third reactants in the presence of the hydrosilylation catalyst and the polar liquid to form an emulsion wherein the first, second, and third reactants react via a hydrosilylation reaction to form particles in the emulsion that have a linear backbone wherein the condensable reactive group is disposed thereon, and wherein the particles are disposed in the polar liquid;
• and
• G. cross-linking the linear backbone via a condensation reaction to form the condensation cross-linked particles.