Hybrid networks based on poly(styrene-co-maleic anhydride) and N-phenylaminomethyl POSS
Novel PSMA-POSS nanocomposites were prepared, in which N-phenylaminomethyl polyhedral oligomericsilsesquioxane (POSS) was conducted as crosslink agent to incorporate to poly(styrene-co-maleicanhydride) (PSMA). POSS was introduced by one-step reactive solution blend in amounts of 1e30 wt%.FTIR measurement evidenced the occurrence of amidation reaction between the anhydride group ofPSMA and the secondary amino group of POSS. This reaction turned out to promote POSS well dispersedin the polymer matrix, and the PSMA-POSS hybrids showed no macro phase separation even if POSSconcentration was up to 30 wt%. DSC results showed that the glass transition temperature (Tg) increasedto 168 C with the increase of POSS loading. Dynamic mechanical thermal analysis (DMTA) revealed thestorage modulus at high temperature increased with the addition of POSS due to the formation ofa permanent network. Incorporation of POSS also improved the thermal properties of PSMA-POSScomposites.