在水相体系中进行葡聚糖与环氧氯丙烷的交联反应,FT-IR、TEM和SLS测试表明,制备出的葡聚糖粒子为醚键交联的、粒径数百纳米的窄粒径分布球形纳凝胶.SLS测试表明,凝胶粒子的粒径随葡聚糖浓度增大而增大,质量浓度为1.25g/L、4.50g/L、10.0g/L的葡聚糖所制备的凝胶粒子平均粒径分别为119.5nm、354.0nm、1526.8nm;此外,借助DSC、RI和UV-Vis等测试研究了葡聚糖纳凝胶的相转变行为,结果表明,升温促使纳凝胶先收缩后溶胀;pH值升高引起纳凝胶亲水性下降,粒子收缩.
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