Synthesis and Applications of Alkyl-functionalized Graphene Oxide/Polyimide Nanocomposites

Title
Synthesis and Applications of Alkyl-functionalized Graphene Oxide/Polyimide Nanocomposites
Authors
여현욱이도훈안석훈유남호
Keywords
graphene oxide; polyimide; composite; mechanical properties
Issue Date
2014-08
Publisher
248th ACS National Meeting
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 situ polymerization of aromatic dianhydride (PDMA) and aromatic diamine (ODA) with added alkyl-fucntionalized GO. The A-GO/PI composites showed a 118% increase in tensile strength, and 45% improvement in modulus with a low content of A-GO (0.5wt%). Furthermore A-GO/PI composites exhibited improved mechanical properties compared 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/201004/48044
Appears in Collections:
KIST Publication > Conference Paper
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