南京林业大学学报(自然科学版) ›› 2014, Vol. 38 ›› Issue (01): 125-129.doi: 10.3969/j.issn.1000-2006.2014.01.022

• 研究论文 • 上一篇    下一篇

微晶纤维素ARGET ATRP接枝共聚制备PMMA和PMAA-Na的研究

庄志良,吴伟兵,谷 军,戴红旗*   

  1. 南京林业大学,江苏省制浆造纸科学与技术重点实验室,江苏 南京 210037
  • 出版日期:2014-01-15 发布日期:2014-01-15
  • 基金资助:
    收稿日期:2012-12-23 修回日期:2013-04-07
    基金项目:国家自然科学基金项目(31200453, 31270614); 中国博士后科学基金面上项目; 江苏高校优势学科建设工程资助项目(PAPD)
    第一作者:庄志良,硕士生。*通信作者:戴红旗,教授。E-mail: daihq@vip.sina.com。
    引文格式:庄志良,吴伟兵,谷军,等. 微晶纤维素ARGET ATRP接枝共聚制备PMMA和PMAA-Na的研究[J]. 南京林业大学学报:自然科学版,2014,38(1):125-129.

Research on ARGET ATRP for grafting of microcrystalline cellulose to synthesize PMMA and PMAA-Na

ZHUANG Zhiliang, WU Weibing, GU Jun, DAI Hongqi*   

  1. Jiangsu Province Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
  • Online:2014-01-15 Published:2014-01-15

摘要: 使用再生电子转移生成催化剂原子转移自由基聚合(ARGET ATRP)方法,在微晶纤维素表面分别接枝了甲基丙烯酸甲酯(MMA)和甲基丙烯酸钠(MAA-Na),FT-IR图谱和SEM照片证明纤维素基表面成功接枝聚甲基丙烯酸甲酯(PMMA); 凝胶渗透色谱分析表明PMMA的分子质量分布较窄,Mw/Mn=1.12,说明ARGET ATRP实现了对接枝侧链分布均一性的有效控制。MAA-Na单体的转化率随反应时间的增加而增加,可在接枝侧链分布均一性的基础上通过调整反应时间实现侧链长度的有效可控。ARGET ATRP可实现对微晶纤维素表面接枝侧链分布和长度的控制。

Abstract: This paper applies ARGET(activators regenerated by electron transfer)ATRP(atom transfer radical polymerization)to graft methyl methacrylate(MMA)and sodium methacrylate(MAA-Na)from microcrystalline cellulose, respectively. The grafted substrates were evaluated with FT-IR and SEM, suggesting that polymethylmethacrylate(PMMA)was successfully grafted from the surface of microcrystalline cellulose. The free polymer PMMA was characterized by GPC, showing that the molecular weight distribution was narrow(Mw/Mn=1.12)and sufficient control was achieved when grafting monomers from the cellulose substrates via ARGET ATRP. Furthermore, the influence of time on grafting microcrystalline cellulose with MAA-Na through ARGET ATRP was investigated. The results revealed that monomer conversion increased with the reaction time, corroborating that ARGET ATRP can get good control on the length of the side chains grafted from the substrates. The distribution and the length of polymer chains graftod from microcrgstalline celluloso can be well controlled by ARGET ATRP.

中图分类号: