Curing Behavior and Final Properties of Nanostructured Thermosetting Systems Modified with Epoxidized Styrene‐Butadiene Linear Diblock Copolymers
作者： Elena Serrano , Agnieszka Tercjak , Connie Ocando , Maider Larrañaga , M. Dolores Parellada
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摘要: Nanostructured thermosetting materials based on matrices were prepared by modification of an epoxy system with linear PS-block-PB copolymers. The nanostructured thermosets obtained through PS block segregation. Depending the block-copolymer content in and its epoxidation degree, domains can display micellar, worm-like or hexagonally-packed cylinder structures, retaining stiffness matrix, where hexagonally cylindrical morphology lead to a significant increase fracture toughness. rheokinetics microphase separation during network formation was investigated. Nanostructures are judged be formed polymerization-induced separation, marked contrast equilibrium self-organized structures that preformed, microphases fixed via curing reaction.
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