Toughening Epoxy Thermosets with Block Ionomers: The Role of Phase Domain Size

@inproceedings{Wu2013TougheningET,
  title={Toughening Epoxy Thermosets with Block Ionomers: The Role of Phase Domain Size},
  author={Shuying Wu and Qipeng Guo and Martin Kraska and Bernd Stuehn and Yiu-Wing Mai},
  year={2013}
}
Herein we report a novel approach to toughen epoxy thermosets using a block ionomer, i.e., sulfonated polystyrene-block-poly(ethylene-co-butylene)-block-polystyrene (SSEBS). SSEBS was synthesized by sulfonation of SEBS with 67 wt % polystyrene (PS). Phase morphology of the epoxy/SSEBS blends can be controlled at either nanometer or micrometer scale by simply adjusting the sulfonation degree of SSEBS. It has been found that there exists a critical degree of sulfonation (10.8 mol %) forming… CONTINUE READING