应用化学

• 研究论文 • 上一篇    下一篇

超细荧光聚合物纳米微球的制备

强新新,赵志超,宋锋玲,彭孝军,樊江莉*   

  1. (大连理工大学精细化工国家重点实验室 大连 116024)
  • 收稿日期:2011-08-31 修回日期:2011-10-27 出版日期:2012-06-10 发布日期:2012-06-10
  • 通讯作者: 樊江莉,副教授; Tel:0411-84986327; Fax:0411-84986304; E-mail:fanjl@dlut.edu.cn; 研究方向:荧光染料及其应用、荧光探针
  • 基金资助:
    国家自然科学基金(21136002,20725621,21076032,20923006)国家重点基础研究发展计划(2009CB724706)中央高校基本科研业务费专项资金(DUT10LK05)和辽宁省教育厅科学研究基金(LS2010040)资助项目

Preparation of Fluorescent Ultrafine Polymer Nanoparticles

QIANG Xinxin, ZHAO Zhichao, SONG Fengling, PENG Xiaojun, FAN Jiangli*   

  1. (State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China)
  • Received:2011-08-31 Revised:2011-10-27 Published:2012-06-10 Online:2012-06-10
  • Contact: li

摘要: 合成了具有较高荧光量子产率(0.69)和良好光稳定性的可聚合荧光染料单体,该荧光染料的光稳定性高于商品化的染料罗丹明B。 通过氧化还原引发剂引发乳液聚合制备了超细荧光聚合物纳米微球,将染料分子共价连接在聚合物链上。 使用非离子表面活性剂Triton X-100作为乳化剂、甲基丙烯酸甲酯(MMA)作为单体和助乳化剂,制备的超细纳米微球平均粒径为22 nm,而不加MMA时制备出的纳米微球平均粒径在150 nm左右。 由于微球表面带有苄氯基团,为进一步的微球功能化提供了途径。

关键词: 可聚合染料, 超细聚合物纳米微球, 光稳定性, 染料泄漏, 蒽吡啶酮, 乳液聚合

Abstract: A new polymerizable fluorescent dye with high fluorescence quantum yield(0.69) was synthesized. The dye possesses even better photo stability than commercial dye Rhodamine B. The fluorescent ultrafine polymer nanoparticles were obtained by emulsion polymerization initialized by redox initiator. The average diameter of the nanoparticles prepared by Triton X-100 as emulsifier and methyl methacrylate(MMA) as assistant emulsifier and monomer is 22 nm, while the diameter is about 150 nm without MMA. The benzyl chloride groups provide an easy way to further function.

Key words: polymerizable dye, ultrafine polymer nanoparticles, photostability, dye leakage, anthrapyridone, emulsion polymerization

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