通过微波辐射热致交联的方法增强改性三维壳聚糖棒材.结果表明,辐射一定时间后发牛的交联反应提高了壳聚糖溶液的旋转粘度;继续增加辐射时间,由于壳聚糖的热交联反应和热分解碳化同时并存,壳聚糖溶液的旋转粘度反而下降了.交联和高温碳化对壳聚糖分子链产生化学和物理的固定作用,使其吸水膨胀困难,从而降低了壳聚糖俸材的吸水率.热交联反应使壳聚糖分子链间形成体型网络状结构,从而有效地改善了三维壳聚糖棒材的力学性能.微波辐射4 min后,壳聚糖棒材的弯曲强度和弯曲模量可达182.8 MPa、5.6 GPa,比未辐射的壳聚糖棒材分别提高了97.8%、36.6%.
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