Abstract
Functionalized reduced graphene oxide (RGO) was obtained by reaction of graphene oxide with dodecyl (12C), octyl (8C) and propyl (3C) trimethoxysilane and subsequent reduction using hydrazine hydrate. The results showed the successful grafting of the alkyl groups onto the surface of RGO, and that the longer alkylated chains made graphene more lipophilic. Furthermore, the RGO-12C was incorporated into polypropylene matrix as a reinforcing component by solution mixing. The resulting nanocomposites displayed a significant improvement in thermal stability, crystallinity and mechanical properties. This work suggests a new route to improve the solubility and dispersion of graphene in polymer matrix.
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