Evaluation of effective synthesis parameters on shape memory in POSS-polyurethane nanocomposites

We report a shape memory polymer network constructed Base on a polyhedral oligomeric silsesquioxane nanoparticle core functionalized with eight polyurethane arms.Polyhedral oligomeric silsequioxane (POSS), having eight hydroxyl groups for the preparation of nanocomposites with polyurethane was synthesized by direct hydrosilylation of allyl alcohol with octasilsesquioxane (Q8M8 H) with platinum divinyltetramethyl disiloxane Pt(dvs) as a catalyst. The structure of allyl alcohol terminated-POSS (POSS-OH) was confirmed by FTIR, NMR

Keywords:

Shape memory property , Polyurethane , Nanocomposite , Biocompatibility