Poly modified PDMS elastomers

Poly(dimethylsiloxane) (PDMS) is one of the most popular inorganic elastomers and can be modified with many nanofillers. Pan et al. used silanol-terminated PDMS and modified this matrix with mono-POSS and tetra-POSS cages which were physically blended into the matrix. The authors prepared another type of PDMS which had vinyl terminal groups that are also able to react with the central siloxane core by hydrosilylation. The idea was to obtain larger POSS-based fillers than silica particles typically used to reinforce elastomers (Fig. 8). 

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