TY - JOUR
T1 - In situ random co-polycondensation for preparation of reduced graphene oxide/polyimide nanocomposites with amino-modified and chemically reduced graphene oxide
AU - Chen, Wen-Qiu
AU - Li, Quan-Tao
AU - Li, Peng-Hui
AU - Zhang, Quan-Yuan
AU - Xu, Zu-Shun
AU - Chu, Paul K.
AU - Wang, Xian-Bao
AU - Yi, Chang-Feng
PY - 2015/6
Y1 - 2015/6
N2 - Reduced graphene oxide/polyimide (rGO/PI) nanocomposites are prepared via in situ random co-polycondensation of amino-modified and chemically reduced graphene oxide (rGO-NH2) with commercial diamine and dianhydrides. The chemical modification and reduction of graphene oxide (GO) endows rGO-NH2 with good solubility in organic solvents to prepare rGO/PI nanocomposites with high filler contents. rGO-NH2 is further used as a functional co-monomer to participate the polymerization of PI with full compatibility of the guest and host in molecular level. With the addition of rGO-NH2 at 2 wt% content, the thermal, mechanical properties, and hydrophobicities of rGO/PI nanocomposites are significantly enhanced with various indicators achieving or approaching the optimum. The positive or negative impacts of rGO-NH2 with various contents to the properties of the obtained nanocomposites are also illustrated incidentally from micromorphology. This effective approach provides a possibility for developing high-performance PI composites based on graphene for advanced engineering or functional materials.
AB - Reduced graphene oxide/polyimide (rGO/PI) nanocomposites are prepared via in situ random co-polycondensation of amino-modified and chemically reduced graphene oxide (rGO-NH2) with commercial diamine and dianhydrides. The chemical modification and reduction of graphene oxide (GO) endows rGO-NH2 with good solubility in organic solvents to prepare rGO/PI nanocomposites with high filler contents. rGO-NH2 is further used as a functional co-monomer to participate the polymerization of PI with full compatibility of the guest and host in molecular level. With the addition of rGO-NH2 at 2 wt% content, the thermal, mechanical properties, and hydrophobicities of rGO/PI nanocomposites are significantly enhanced with various indicators achieving or approaching the optimum. The positive or negative impacts of rGO-NH2 with various contents to the properties of the obtained nanocomposites are also illustrated incidentally from micromorphology. This effective approach provides a possibility for developing high-performance PI composites based on graphene for advanced engineering or functional materials.
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U2 - 10.1007/s10853-015-8890-7
DO - 10.1007/s10853-015-8890-7
M3 - RGC 21 - Publication in refereed journal
SN - 0022-2461
VL - 50
SP - 3860
EP - 3874
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 11
ER -