Influence of polyacrylate on the compatibility in P(MMA/EA)/PU Semi-IPNs

摘要

The Semi-Interpenetrating Polymer Networks (Semi-IPNs) of poly(methyl methyacrylate/ethyl acrylate)(P(MMA/EA)) and polyurethane thermoplastic elastomer (PU) were synthesized by PU and copolymer of methyl methacrylate and ethyl acrylate to improve the compatibility of polymethyl methacrylate(PMMA) and PU Semi-IPNs. The structure and properties were investigated by Fourier transform infrared spectrometer, Solid nuclear magnetic resonance spectrometry, Dynamic mechanical thermal analysis and Mechanical properties. The tensile stress of (P(MMA/EA)/PU) (P(MMA/EA):PU=3:7) can get to 9.6 MPa, the additional physical crosslinks and entanglement for Semi-IPNs are the reasons.