Preparation and Characterization of Chemically Functionalized Graphene Oxide/Polyimide nanocomposits
- Preparation and Characterization of Chemically Functionalized Graphene Oxide/Polyimide nanocomposits
- 이도훈; 김기령; 여현욱; 신동근; 안석훈; 고문주; 구본철; 이중희; 유남호
- Issue Date
- Carbon 2014
- In summary, we synthesized alkyl-fucntionalized graphene oxide by reaction of alkyl bromide and commercial GO to improve interaction between the filler and matrix in GO/PI nanocomposites. A-GO/PI nanocomposite materials were prepared by in situpolymerization of aromatic dianhydride (PDMA) and aromatic diamine (ODA) with added alkyl-fucntionalized GO. The A-GO/PI composites showed a 18% increase in tensile strength, and 45% improvement in modulus with a low content of A-GO (0.5wt%). Furthermore A-GO/PI compositesexhibited improved mechanical propertiescompared with those of n-GO/PI composites due to strong interfacial interaction between A-GO and matrix polymer.
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