Preparation and Characterization of Chemically Functionalized Graphene Oxide/Polyimide nanocomposits

Title
Preparation and Characterization of Chemically Functionalized Graphene Oxide/Polyimide nanocomposits
Authors
이도훈김기령여현욱신동근안석훈고문주구본철이중희유남호
Issue Date
2014-07
Publisher
Carbon 2014
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/48015
Appears in Collections:
KIST Publication > Conference Paper
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