Alkyl-Functionalized Graphene Nanosheets with Improved Lipophilicity
Yewen Cao, Jiachun Feng*, and Peiyi Wu. Alkyl-Functionalized Graphene Nanosheets with Improved Lipophilicity. Carbon 2010, 48, 1683-1685.
Graphene nanosheets grafted with long alkyl chains were produced by simply using an amidation reaction. Compared with unmodified counterparts, the alkyl-functionalized graphene nanosheets show largely enhanced lipophilicity, as illustrated by their remarkably improved dispersion in the nonpolar solvents and polypropylene matrix. The polypropylene/alkylated nanosheets composites exhibit largely improved thermal stability, which suggests that this lipophilization method is a potential technique for developing high-performance composites.