Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (07): 817-821 .DOI: 10.6023/A1112251     Next Articles

Full Papers

原子转移氮氧自由基偶合反应制备聚苯乙烯改性的石墨烯

陈小乙a,b, 石远琳a, 杨东a, 胡建华a, 杨芃原b   

  1. a 聚合物分子工程国家重点实验室 复旦大学高分子科学系 上海 200433;
    b 复旦大学化学系 上海 200433
  • 投稿日期:2011-12-25 修回日期:2012-02-06 发布日期:2012-02-15
  • 通讯作者: 杨东 E-mail:yangdong@fudan.edu.cn; hujh@fudan.edu.cn
  • 基金资助:

    国家自然科学基金(Nos. 50873029, 51073042, 51103026)、上海科技创新行动计划(No. 11JC1400600)、上海市自然科学基金(No. 11ZR1403100)和高等学校博士学科点专项科研基金(No. 20110071120006)资助项目.

Preparation of Polystyrene Functionalized Graphene by Atom Transfer Nitroxide Radical Coupling Reaction

Chen Xiaoyia,b, Shi Yuanlina, Yang Donga, Hu Jianhua, Yang Pengyuanb   

  1. a State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433;
    b Department of Chemistry, Fudan University, Shanghai 200433
  • Received:2011-12-25 Revised:2012-02-06 Published:2012-02-15
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 50873029, 51073042, 51103026), Shanghai Scientific and Technological Innovation Project (No. 11JC1400600), Shanghai Natural Science Funds (No. 11ZR1403100), and the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20110071120006).

Polystyrene functionalized graphene was prepared by atom transfer nitroxide radical coupling (ATNRC) reaction. Graphene oxide was first reacted with thionyl chloride, followed by esterification with 4-hydroxy-2,2,6,6-tetramethyl-piperidinyl-1-oxyl (HTEMPO) to prepare HTEMPO functionalized graphene (Graphene-HTEMPO). Then, Graphene-HTEMPO was coupled with Br-end-capping polystyrene prepared by atom transfer radical polymerization (ATRP) via ATNRC reaction to obtain polystyrene covalently functionalized graphene (Graphene-g-PS). The thermogravimetric analysis result showed that the graft ratio of PS was 6.68 wt%. The PS on the surface of graphene could be obviously observed from the TEM image. Because of the covalent graft of PS, Graphene-g-PS showed good dispersibility in chloroform, hexane, toluene, methanol, etc., which is favorable to the further application of graphene.

Key words: graphene, polystyrene, atom transfer nitroxide radical coupling reaction, chemical functionalization