Journal of Industrial and Engineering Chemistry, Vol.7, No.5, 310-315, September, 2001
Chemical Modification of Poly(styrene-alt-maleic anhydride) with Antimicrobial 4-Aminobenzoic Acid and 4-Hydroxybenzoic Acid
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Poly(styrene-alt-maleic anhydride) (SMA) is one of the most appropriate intermediate polymers that can be converted into bioactive polymers as its succinic anhydride units can react with any bioactive agents with low molecular weights containing amino and hydroxy groups. In this study, SMA was reacted with antimicrobial 4-aminobenzoic acid and 4-hydroxybenzoic acid to obtain P-1 and P-2, respectively, with reasonably high yields. The glass transition temperatures of P-1 and P-2 were higher than that of SMA due to hydrogen-bonding interactions. The polymers became crosslinked on heating at about 300 ℃. The new polymers were found to exhibit excellent bacteriocidal activities even though their antifungal activites were not satisfactory.
Keywords:poly(styrene-co-maleic anhydride);bioactive agent;4-aminobenzoic acid;4-hydroxybenzoic acid;antimicrobial polymer
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