Characterization and properties of in situ emulsion polymerized poly(methyl methacrylate)/graphene nanocomposites

• Published in: Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2011-11, Vol.42 (11), p.1856-1861
• Main Authors: Kuila, Tapas, Bose, Saswata, Khanra, Partha, Kim, Nam Hoon, Rhee, Kyong Yop, Lee, Joong Hee
• Format: Article
• Language: English
• Subjects: Applied sciences; B. Electrical properties; B. Mechanical properties; Composites; D. Thermal analysis; differential scanning calorimetry; electrical conductivity; Emulsion polymerization; emulsions; Exact sciences and technology; Forms of application and semi-finished materials; glass transition; Graphene; Graphite; Nanocomposites; Oxides; Particulate composites; Polymer industry, paints, wood; Polymerization; polymers; Polymethyl methacrylates; room temperature; storage modulus; Technology of polymers; thermal stability; thermogravimetry
• ISSN: 1359-835X; 1878-5840
• DOI: 10.1016/j.compositesa.2011.08.014

Poly(methyl methacrylate) (PMMA)/graphene nanocomposites were prepared by in situ emulsion polymerization. Raman and Fourier transform infrared spectra showed that PMMA polymer contained partially reduced graphite oxide. Dynamic mechanical analysis and differential scanning calorimetry analysis showed that graphene in the PMMA matrix acted as reinforcing filler; it enhanced the storage moduli and glass transition temperatures of the nanocomposites. Thermogravimetric analysis showed that the thermal stability of the nanocomposites increased by ca. 35 °C. The electrical conductivity of nanocomposite with 3 wt.% graphite oxide was 1.5 S m −1 at room temperature.