Toughening of crosslinked polystyrene with liquid rubber
作者： Rogerio Soares Coelho , Cassia Cunico , Sonia Zawadzki , Leni Akcelrud
DOI: 10.1002/APP.2055
关键词: Particle size 、 Radical polymerization 、 Flexural modulus 、 Composite material 、 Materials science 、 Polybutadiene 、 Natural rubber 、 Polystyrene 、 Flexural strength 、 Phase (matter) 、 Materials Chemistry 、 General chemistry 、 Surfaces, Coatings and Films 、 Polymers and Plastics
摘要: The optimum conditions for preparing poly(styrene-co-divinylbenzene) were determined and the variation of mechanical properties networks with crosslinking density was evaluated. molecular weight between crosslinks in 800–12,000 range. flexural modulus strength 5000 110 MPa, respectively, more crosslinked materials. When liquid rubber (hydroxyl-terminated polybutadiene) incorporated into glassy matrix, these values dropped to 2500 70 but impact resistance increased J/m. These comparable some commercial grade high polystyrene resins. particle size dispersed phase on nanometer scale, attempts increase its dimensions should provide further improvement properties. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 2098–2105,
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