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Reaction kinetics of irradiation‐ prepolymerized methyl methacrylate‐polyurethane interpenetrating polymer networks by FTIR
Author(s) -
Wang GengChao,
Wang JiaXun,
Zhang ZhiPing
Publication year - 1991
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990250407
Subject(s) - polyurethane , fourier transform infrared spectroscopy , kinetics , polymer chemistry , irradiation , materials science , methyl methacrylate , polymerization , interpenetrating polymer network , polymer , chemical engineering , chemical kinetics , composite material , physics , quantum mechanics , nuclear physics , engineering
The reaction kinetics of irradiation‐prepolymerized MMA‐PU (polyether) IPNs have been studied by FTIR. The results indicate that the polymerization of each component in the IPN follows its normal distinct reaction mechanism with no mutual interference. Increasing the concentration of TMPTMA (crosslinking agent of PMMA) increased the formation rate of PMMA, while the formation rate of PU networks remained almost the same. Increasing the concentration of TMP (crosslinking agent of PU) increased the formation rate of PU, while the formation rate of PMMA networks decreased. The formation rate of PU was obviously faster than that of PMMA. A theory for the cage effect of the PU network has been proposed.