Platinum cured silicone elastomers are used for diverse applications including nanoimprinting, micro-electronic and mechanical systems (MEMS), soft robots, ice-phobic coatings and tactile and epidermal sensors. For such applications, understanding effects of processing conditions on nanoscale mechanical properties is essential for performance. It is surprising, then, that in over 100 papers published since 2000 using Pt-cured silicone elastomers, little attention has been paid to effects of cure temperature on surface and mechanical properties. The present work adds depth to understanding the complex relationships among hydrosilylation and little recognized autoxidation of Si-H to Si-OH and secondary network formation by Si-OH condensation.

Pt-cured silicone elastomers: Toward understanding hydrosilylation, Si-H autoxidation to Si-OH and Si-OH condensation to a secondary Si-O-Si network

2019 Spring National Meeting

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