An Experimental and Theoretical Study of Butyl Methacrylate In Situ Radical Polymerization Kinetics in the Presence of Graphene Oxide Nanoadditive

作者：Michailidis Marios; Verros George D; Deliyanni Eleni A; Andriotis Eleftherios G; Achilias Dimitris S^*

来源：Journal of Polymer Science Part A: Polymer Chemistry , 2017, 55(8): 1433-1441.

DOI：10.1002/pola.28512

• GO
• kinetics (polym)
• modeling
• nanocomposites
• radical polymerization
• simulations

The butyl methacrylate radical polymerization kinetics in the presence of graphene oxide nanoadditive is studied both experimentally and theoretically. The experimental study includes the formation of graphite oxide from the oxidation of graphite and its subsequent transformation to graphene oxide (GO) after ultrasonication and in situ polymerization. Monomer conversion versus time was monitored gravimetrically at various reaction temperatures and initial GO fractions. Formation of GO was verified by X-ray diffraction spectra and the number and weight average molecular weights of the final polymer were obtained from GPC measurements. A detailed theoretical kinetic model was further developed. The model predictions were found to be in satisfactory agreement with the experimental data. The presence of GO was found to result in reduced initiator efficiency verified theoretically and explained through side reactions of primary radicals. Finally, nanocomposites showed enhanced thermal stability compared to neat PBMA.

• 出版日期2017-4-15