Sanna, Roberta and Sanna, Davide and Alzari, Valeria and Nuvoli, Daniele and Scognamillo, Sergio and Piccinini, Massimo and Lazzari, Massimo and Gioffredi, Emilia and Malucelli, Giulio and Mariani, Alberto (2012) Synthesis and characterization of graphene-containing thermoresponsive nanocomposite hydrogels of Poly(N-vinylcaprolactam) prepared by frontal polymerization. Journal of Polymer Science. Part A: Polymer Chemistry, Vol. 50 (19), p. 4110-4118. eISSN 1099-0518. Article.
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Thermoresponsive poly(N-vinylcaprolactam) nanocomposite hydrogels containing graphene were successfully prepared by frontal polymerization. High concentration of graphene (5.0 mg/mL) was obtained by direct graphite sonication in the self-same liquid monomer, thus avoiding any chemical manipulation and obtaining ‘‘real’’ graphene as nanofiller instead of one of its more or less oxidized derivative, which is what generally reported in published reports. Furthermore, the corresponding nanocomposites were obtained without using any solvent to be eventually removed. The materials were fully characterized by RAMAN, SEM, and TEM, and their swelling behavior and rheological properties were investigated.
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