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The sol–gel process has been frequently employed for preparation of high performance silica/polymer composites. In this paper, novel sol–gel precursor triethoxysilane‐terminated poly(urethane‐imide) (PUI‐Si), combining the advantages of polyurethane (PU) and polyimide, was synthesized and characterized. Then PUI‐Si was incorporated into the epoxy resin matrix to prepare a series of EP/PUI‐Si organic‐inorganic...
Incorporating elastic polyurethane in epoxy resin (EP) can enhance the physico-chemical properties but deteriorate the thermal stability. Poly(urethane-imide) (PUI) with a high reactive function group (-NCO), which combines the advantages of polyurethane and polyimide, was synthesized to simultaneously improve the toughness and thermal stability of epoxy resin. EP/PUI composites were prepared based...
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