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Synthesis and characterization of graphene-containing thermoresponsive nanocomposite hydrogels of Poly(N-vinylcaprolactam) prepared by frontal polymerization

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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DOI: 10.1002/pola.26215

Abstract

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.

Item Type:Article
ID Code:8074
Status:Published
Refereed:Yes
Uncontrolled Keywords:Frontal polymerization, graphene, hydrogels, nanocomposites, stimuli-sensitive polymers
Subjects:Area 03 - Scienze chimiche > CHIM/04 Chimica industriale
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > Porto Conte Ricerche, Alghero
002 Altri enti e centri di ricerca del Nord Sardegna > INSTM-Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali, Unità di ricerca di Sassari
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Blackwell / Wiley
eISSN:1099-0518
Copyright Holders:© 2012 Wiley Periodicals
Deposited On:22 Oct 2012 15:53

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