Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (6): 27-34,40.doi: 10.3969/j.issn.1000-565X.2016.06.005

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

reparation and Catalysis Performance of Hemicelluloses-g- Chitosan-Pd(0) Catalyst

PENG Xin-wen1 TAN Jie-wen1 WU Chang-yan1 DENG Qing1 LIN Jia-chun1 SUN Run-cang2   

  1. 1.State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Institute of Biomass Chemistry and Technology,Beijing Forestry University,Beijing 100083,China
  • Received:2015-05-15 Revised:2015-10-12 Online:2016-06-25 Published:2016-05-03
  • Contact: 彭新文(1982-)，女，博士，副教授，主要从事生物基材料与绿色化学研究． E-mail:fexwpeng@scut.edu.cn
  • About author:彭新文(1982-)，女，博士，副教授，主要从事生物基材料与绿色化学研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China(21404043)

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Abstract: 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%.

Key words: hemicelluloses-g-chitosan, hemicelluloses-g-chitosan-palladium(0) catalyst, Suzuki coupling reac- tion, catalytic activity

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