通过较温和的 click 反应制备了半纤维素-g-壳聚糖化合物，并以其为载体通过简单的还原方式制备了半纤维素-g-壳聚糖负载钯(0)催化剂． 利用傅里叶红外光谱、热重分析、扫描电镜、X 射线衍射、X 射线光电子能谱分析等方法对催化剂进行了表征，发现该催化剂对 Suzuki 偶联反应有较好的催化活性．考察不同的反应溶剂、催化剂用量、反应温度、碱、底物种类和循环回用次数对 Suzuki 反应产率的影响． 结果表明:以无水乙醇为溶剂、K₂CO₃ 为碱时，在 70℃下反应 3h，反应产率高达 84%;催化剂可以通过简单的方法回收但重复使用性能有一定下降，重复使用 5 次后产率降至 61． 6%．

Hemicelluloses-g-chitosan was prepared via click reaction under mild conditions and was used as a sup- porter to produce hemicelluloses-g-chitosan-palladium(0) catalyst through a simple reduction reaction.Then,the catalyst was characterized by means of FT-IR,TGA,SEM,XRD and XPS,with high catalytic activity for Suzuki coupling being revealed.Moreover,the yields of Suzuki reaction affected by the solvent type,the catalyst dosage,the reaction temperature,the base,the substrate and the recycle number were investigated.The results show that the yield is up to 84% after a reaction at 70℃ for 3h by using ethanol as the solvent and K₂CO₃ as the base; and that the catalyst can be recycled through a simple method and be reused at least five times,with a yield decreasing to 61. 6%.