Lee Sun Hwa, Dreyer Daniel R, An Jinho, Velamakanni Aruna, Piner Richard D, Park Sungjin, Zhu Yanwu, Kim Sang Ouk, Bielawski Christopher W, Ruoff Rodney S
Department of Materials Science and Engineering KAIST, Daejeon 305-701, Republic of Korea.
Macromol Rapid Commun. 2010 Feb 2;31(3):281-8. doi: 10.1002/marc.200900641. Epub 2009 Nov 24.
A method for growing polymers directly from the surface of graphene oxide is demonstrated. The technique involves the covalent attachment of an initiator followed by the polymerization of styrene, methyl methacrylate, or butyl acrylate using atom transfer radical polymerization (ATRP). The resulting materials were characterized using a range of techniques and were found to significantly improve the solubility properties of graphene oxide. The surface-grown polymers were saponified from the surface and also characterized. Based on these results, the ATRP reactions were determined to proceed in a controlled manner and were found to leave the structure of the graphene oxide largely intact.
展示了一种直接从氧化石墨烯表面生长聚合物的方法。该技术包括引发剂的共价连接，随后使用原子转移自由基聚合（ATRP）对苯乙烯、甲基丙烯酸甲酯或丙烯酸丁酯进行聚合。使用一系列技术对所得材料进行了表征，发现其显著改善了氧化石墨烯的溶解性能。从表面皂化了表面生长的聚合物并对其进行了表征。基于这些结果，确定ATRP反应以可控方式进行，并且发现氧化石墨烯的结构基本保持完整。
