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含磷脂酰胆碱的聚乳酸的诱导矿化研究

DOI: 10.3724/SP.J.1105.2012.11336, PP. 714-719

Keywords: 聚乳酸,磷脂酰胆碱,诱导矿化,羟基磷灰石

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Abstract:

分别以甘油磷脂酰胆碱和1,4-丁二醇为引发剂开环丙交酯,制备了含磷脂酰胆碱的聚乳酸(PLA-PC)和聚乳酸(PLA),比较了两者在诱导矿化中的差异.用傅立叶红外光谱仪(FTIR)、X-射线衍射仪(XRD)和扫描电子显微镜(SEM)对PLA-PC膜表面形成的矿化物进行了表征.结果表明,形成的矿化物为羟基磷灰石(HAP),PLA-PC膜有利于成核和生长,晶体呈片状,并随矿化时间延长,HAP晶粒逐渐增大,晶片厚度也逐渐变大.

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