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Title: Investigation of thermomechanical properties and matrix-filler interaction on polyimide/graphene oxide composites
Authors: Pramoda, K.P.
Mya, K.Y.
Lin, T.T.
Lu, X.
He, C. 
Issue Date: Dec-2012
Source: Pramoda, K.P., Mya, K.Y., Lin, T.T., Lu, X., He, C. (2012-12). Investigation of thermomechanical properties and matrix-filler interaction on polyimide/graphene oxide composites. Polymer Engineering and Science 52 (12) : 2530-2536. ScholarBank@NUS Repository.
Abstract: We report, the preparation of nanocomposites having polyimide (PI) as matrix and graphene oxide (GO) as filler, analyses of matrix-filler interactions, and enhancements in thermomechanical properties of PI/GO as compared with pristine PI. The matrix-filler interactions were analyzed by 1H NMR, X-ray photoelectron spectroscopy, and density functional theory calculations. The data suggested stronger matrix-filler interactions in PI/GO as compared with PI/G composites. The stronger matrix-filler interactions and homogeneous dispersion of fillers lead to a significant enhancement in mechanical properties in PI/GO nanocomposites. Thus, with just 1 wt% GO content, the modulus of PI/GO composite increased by â106% as compared with pristine PI. Finally, thermal expansion coefficients of the nanocomposites are also investigated. A plausible hypothesis has been proposed in the text to explain the observed matrix-filler interactions and the subsequent property enhancements in nanocomposites. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers Copyright © 2012 Society of Plastics Engineers.
Source Title: Polymer Engineering and Science
ISSN: 00323888
DOI: 10.1002/pen.23208
Appears in Collections:Staff Publications

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