生物学杂志

生物学杂志 ›› 2019, Vol. 36 ›› Issue (6): 100-.doi: 10.3969/j.issn.2095-1736.2019.06.100

• 技术方法 • 上一篇    下一篇

HRP引发滤纸表面RAFT接枝聚合改性 

  

  1. 江南大学 生态纺织教育部重点实验室， 无锡 214122
  • 出版日期:2019-12-18 发布日期:2019-12-12
  • 通讯作者: 余圆圆，博士，副教授，主要研究方向为纤维素材料生物法改性技术，E-mail: jnyyy@jiangnan.edu.cn
  • 作者简介:王文艳，硕士生，主要研究方向为纤维素材料生物法改性技术,E-mail:1048523923@qq.com
  • 基金资助:

    国家自然科学基金（51603087）;中国博士后科学基金资助项目（2017M611697）;江苏省博士后科研资助计划项目（1701022A）


Filter paper surface modification via HRP-induced RAFT grafting polymerization 

  1. Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
  • Online:2019-12-18 Published:2019-12-12

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摘要：

采用辣根过氧化物酶（HRP）/乙酰丙酮（ACAC）/H2O2三元体系引发滤纸表面可逆加成-断裂链转移（RAFT）接枝聚合反应，在其表面接枝聚合丙烯酸甲酯。首先利用酯化反应，将RAFT链转移剂2-（十二烷基三硫代碳酸酯基）-2-甲基丙酸（DDMAT）接枝到滤纸表面，制备DDMAT-滤纸；然后在HRP/ACAC/H2O2三元体系催化引发作用下，在DDMAT-滤纸表面接枝聚合丙烯酸甲酯。ATR-FTIR结果表明改性滤纸上成功接枝了DDMAT及丙烯酸甲酯；XPS结果表明改性滤纸上的S元素含量和碳氧双键含量增加，进一步证明改性滤纸表面含有DDMAT和聚丙烯酸甲酯；润湿性能测试结果表明接枝RAFT试剂后滤纸具有一定的疏水性，并在接枝聚合丙烯酸甲酯后疏水性进一步提高。


关键词: 纤维素, 接枝聚合, RAFT, 疏水改性

Abstract:

HRP/acetylacetone (ACAC)/H2O2 system was used to initiate reversible addition-fragmentation chain transfer (RAFT) graft polymerization on the surface of filter paper for grafting polymerization of methyl acrylate. The RAFT chain transfer agent, 2-(dodecyltrithiocarbonate)-2-methylpropionic acid (DDMAT), was grafted onto the surface of the filter paper by esterification reaction to prepare DDMAT-filter paper. Methyl acrylate was graft polymerized on the surface of DDMAT-filter paper via HRP/ACAC/H2O2 ternary system. The results of ATR-FTIR indicated that DDMAT and methyl acrylate were successfully grafted on the structure filter paper. XPS results showed that the content of S element and the content of carbon-oxygen double bond on the modified filter paper increased, which further proved that the surface of the modified filter paper contained DDMAT and methyl acrylate. The wettability test results showed that the filter paper had a certain hydrophobicity after grafting the RAFT agent, and the hydrophobicity was improved after graft polymerization of methyl acrylate.


Key words: cellulose, graft polymerization, RAFT, hydrophobic modification

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