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先进固体核磁共振揭示苯硼酸-壳聚糖纳米粒子非均匀结构和相容性Hot!

DOI: 10.11938/cjmr20150217, PP. 354-362

Keywords: 固体核磁共振,非均匀结构,相容性,纳米粒子,壳聚糖

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Abstract:

该文采用先进的固体核磁共振技术研究了壳聚糖-聚3-丙烯酰胺基苯硼酸纳米粒子非均匀结构和高分子间的相容性.13CCPMAS实验表征了壳聚糖与苯硼酸结合后的构象变化,2D13C-1HHETCOR实验进一步证明了壳聚糖在界面处通过硼酸配位作用与苯硼酸链紧密相连.2D1H-1H自旋交换和扩散实验阐明了壳聚糖和聚苯硼酸的界面混合性,相分离尺度大约为15-20nm.

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