Synthesis and antimicrobial activity of quaternized O-carboxymethyl chitosan assisted with ultrasonic irradiation，ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）-中国聚合物网,论文下载

Synthesis and antimicrobial activity of quaternized O-carboxymethyl chitosan assisted with ultrasonic irradiation

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o-carboxymethyl chitosan quaternization ultrasonic irradiation antimicrobial activity

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分子表征

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ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）

简介：

O-carboxymethylchitosan(OCMC)wassynthesizedbyultrasonicirradiationwithchitosanandchloroaceticacidinNaOH-ethanol.Thedegreeofsubstitution(DS)ofcarboxymethylandaminoretainedamount(NH2%)werestudiedundertheorthogonalexperimentsoffourfactorsatthreedifferentlevelsandthereactionconditionwasoptimized.ThenquaternaryammoniumgroupwasintroducedbythereactionofpreferableOCMCwithglycidyltrimethylammonium(GTA)inethanol.TheDSofthequaternizationgroupwasstudied.AntimicrobialactivitiesofquaternizedO-carboxymethylchitosan(QOCMC)wereevaluatedagainstEscherichiacoliandStaphylococcusaureus.ThestructuresofthederivativeswerecharacterizedbytheFTIRspectrometer.ExperimentresultsvalidatedthatQOCMCisbetterthanOCMCinthepropertiesofantimicrobialactivity.

作者：

WANG Chen, LI Yalin, ZHAO Hang

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2011-09-26 14:50:23

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