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Mechanical properties of polycarbonate and poly(methyl methacrylate) films reinforced with surface-functionalized nanodiamonds

Title
Mechanical properties of polycarbonate and poly(methyl methacrylate) films reinforced with surface-functionalized nanodiamonds
Authors
Jee A.-Y.Lee M.
Ewha Authors
이민영
SCOPUS Author ID
이민영scopus
Issue Date
2011
Journal Title
Journal of Nanoscience and Nanotechnology
ISSN
1533-4880JCR Link
Citation
vol. 11, no. 1, pp. 533 - 536
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Polymer nanocomposites (PNCs) possess highly versatile characteristics, depending on the nanofiller properties such as its chemical composition, particle size, dimension, polydispersity, concentration, or surface functional groups. In comparison with micron-sized materials, the nanofiller having a large surface area facilitates stronger interaction with the matrix. In this work, various surface-functionalized nanodiamonds (sf-NDs) having hydroxyl, carboxyl, amino, and amide group were prepared, and dispersed into polycarbonate (PC) and poly(methyl methacrylate) (PMMA) polymers. The polymer nanocomposites (PNCs) which contain the ND content of 5 wt% were subjected to the measurements of mechanical properties such as hardness and Young's modulus by atomic force microscopy (AFM) nanoindentation. It was observed that the hardness and Young's modulus of the polymer nanocomposites depend on strongly the nature of functional groups. The amine or amide functionalization gives the high mechanical properties for both polymers. The interfacial interaction between sf-NDs and polymer matrices is an important factor determining the mechanical properties of the PNCs. Copyright© 2011 American Scientific Publishers All rights reserved.
DOI
10.1166/jnn.2011.3290
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자연과학대학 > 화학·나노과학전공 > Journal papers
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