Starch/Silicone Elastomers and Foams

While the beneficial physical properties of silicone polymers are exploited in many sustainable applications, high energy requirement for their synthesis compromises to a degree sustainability. We report strategy mitigate this issue by filling with inexpensive and renewable starch. Elastomeric materials covalently grafted starch, utilizing anhydride-modified silicones, permits loading up about 75% starch while maintaining silicone. Alternatively, 50 wt.% starch-filled foams can be prepared simply mixing powdered mixture HSi-functional fluids presence B(C6F5)3. The resulting determined quantity SiH, which controls final density (ranging from 0.258–0.875 g mL−1), Young’s modulus, elasticity; both rigid flexible were prepared. Materials natural material content better adhere green chemistry principle 7, should enhance ease degradation at end life, augment sustainability these composites.