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Different contents of bonded cellulose were dispersed in a matrix of castor-oil-based polyurethane to produce composites with high susceptibility to fungal attack. We chose to bond the cellulose filler with free diisocyanate, to increase the crosslinking density. Measurements indicated physical and chemical interactions between the polyurethane matrix and cellulose filler. The cellulose network significantly...
In this study, polyether-urethane prepolymers were chain-extended with sulfadiazine and additional crosslinkers to produce polymers resistant to fungi which maintain good mechanical properties. The linear polyurethane ureas with varying stoichiometric ratio were obtained by chain extension with sulfadiazine moieties. The polyurethane prepolymers were synthesized using poly(oxytetramethylene) glycol...
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