The poor dispersion and weak interfacial interaction are the main problems in the graphene based polymer composites. The complicated modification of graphene is usually needed. In this paper, a green and facile method is reported for the synthesis of functionalized reduced graphene oxide under mild conditions. The proposed method is based on the simultaneous reduction and surface function of graphene oxide by urushiol extracted from the sap of lacquer trees. The presence of the unsaturated long alkyl chains of urushiol not only improves the dispersion of resultant graphene in various organic solvents, but also makes graphene easily form covalent connection with polymer matrix. These features endow this urushiol functionalized graphene with great potential in the construction of graphene based polymer composites.

分散性差和界面相互作用弱是石墨烯基聚合物复合材料的主要问题。通常需要对石墨烯进行复杂的修饰。本文报道了一种绿色简便的方法，用于在温和条件下合成功能化的还原氧化石墨烯。所提出的方法是基于从漆树树汁中提取的漆酚同时还原氧化石墨烯和表面功能。漆酚的不饱和长烷基链的存在不仅改善了所得石墨烯在各种有机溶剂中的分散性，而且使石墨烯易于与聚合物基质形成共价连接。这些特征赋予了这种漆酚醇官能化的石墨烯巨大的潜力，可用于构建基于石墨烯的聚合物复合材料。