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Preparation and properties of maleimide capped polyurethane/allyl novolac resin AB crosslinked polymers

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Abstract

To improve the miscibility and tensile strength of the ABCPs material, we conducted a study in which maleimide end-capped polyurethane was prepared from the PU prepolymer and maleimide by reacting 4,4′-diphenylmethane diisocyanate (MDI) with poly(tetramethylene oxide) (PTMO), whose molecular weights were Mn=600∼700 (PA650), Mn=900∼1050 (PA1000) and Mn=1900∼2100 (PA2000). AB crosslinked polymers (ABCPs), synthesized from the PU prepolymer and the novolac resin, were studied. The study confirmed the occurrence of phase mixing. Further investigation through dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM) revealed that the tensile strength and phase mixing were,improved.

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Authors and Affiliations

  1. Department of Chemical Engineering, Tatung Institute of Technology, 40 Chungshan North Rd., Sec. 3, Taipei, 10451, Taiwan, ROC

    Wen-Yen Chiang & Chung-Dien Tsai

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  1. Wen-Yen Chiang
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  2. Chung-Dien Tsai
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Chiang, WY., Tsai, CD. Preparation and properties of maleimide capped polyurethane/allyl novolac resin AB crosslinked polymers. J Polym Res 4, 177–182 (1997). https://doi.org/10.1007/s10965-006-0023-1

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  • DOI: https://doi.org/10.1007/s10965-006-0023-1

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