| 초록 |
Linear polysiloxanes having different amounts of polyhedral oligomeric silsequioxane (POSS) side groups were prepared via hydrosilylation reaction of poly(ethylhydrosiloxane) with different amount of POSS using platinum(0)-divinyl tetramethyldisiloxane as a catalyst. The linear polysiloxanes with POSS side groups are soluble in various organic solvents. When the content of POSS is larger than 10 mol%, free standing films can be prepared from a routine solution casting method, although this polysiloxane is not cross-linked. These new polymers showed improved mechanical, thermal properties and dimensional stabilities. The chemical structure, physical, and thermal properties of these new polymers were characterized using NMR, FTIR, and so on. |
