Rigid Polyurethane Foams Prepared with Vinyl Ester Resin as Polyol
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Graphical Abstract
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Abstract
A new kind of rigid polyurethane(PU) foams were successfully prepared with vinyl ester resin containing hydroxyl groups as polyol directly. In this case, VER can not only react with isocyanate to form PU, but can also be copolymerized to form the network
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