A facile method to produce graphene oxide-g-poly(L-lactic acid) as an promising reinforcement for PLLA nanocomposites

Poly(L-lactic acid) (PLLA) nanocomposites reinforced with graphene oxide (GO) or GO grafted with PLLA (GO-g-PLLA) were prepared by solution blending and then compression molding method, where GO-g-PLLA was synthesized via one step based on in situ polycondensation of the L-lactic acid monomers initiated by lyophilized GO. The average thickness of GO was increased by about 2 nm and the weight percent of grafted PLLA chains in obtained GO-g-PLLA...