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壳聚糖的可控接枝改性及其性能研究 蒋建林.pdf

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中文摘要 壳聚糖的可控接枝改性及其性能研究 形态和粒径大小均发生变化。采用铃兰醛为药物模型的释放实验表明较低的pH和 较高的温度有利于铃兰醛的释放,但是温度起决定性作用。 ’ 关键词:壳聚糖;可控接枝改性;性能研究 作 者:蒋建林 指导老师:朱秀林、华道本 lI of Its Abstract ControlledModificationChitosanand Gratting Properties of andIts ControlledModificationChitosan Grafting Properties Abstract natural toits Chitosanisawell—knownabundant biodegradability, polymer.Due and hasbeen insomefieldssuch biocompatibilitynon-toxicity,theremanyapplications and toits and 嬲biomedical agriculture.However,duehighcrystallinitypoorsolubility, chemicalmodificationis neededto the of chitosan,and always improveproperties their fields.Atthesame the few enlargeapplication time,inpast decades,greatprogress madeon fl radical duetotheir to hasbeen ee polymerizationsability controlled/living witll molecularandwell—definedstructures well·controlled synthesizepolymers weights this under andconvenient conditions.In relativelysimple experimental thesis,chemical mediatedradi
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