TY - JOUR
T1 - Periodic Functionalization of Graphene-Layered Alumina Nanofibers with Aromatic Thermosetting Copolyester via Epitaxial Step-Growth Polymerization
AU - Bakir, Mete
AU - Meyer, Jacob L.
AU - Hussainova, Irina
AU - Sutrisno, Andre
AU - Economy, James
AU - Jasiuk, Iwona
N1 - Funding Information:
The authors gratefully acknowledge funding from the National Science Foundation (NSF) I/UCRC grant (IIP-1362146). The findings, conclusions, and recommendations expressed in this manuscript are those of the authors and do not necessarily reflect the views of the NSF. This research was carried out in part in the Frederick Seitz Materials Research Laboratory Central Research Facilities, University of Illinois. This research was also supported by the Estonian Research Council under the personal research grant PUT1093 (I.H.) and the Baltic-American Freedom Foundation under research grant to I.H. The authors acknowledge R. Ivanov from Department of Mechanical and Industrial Engineering, TUT, Estonia, for graphene deposition onto network of nanofibers.
Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/12
Y1 - 2017/12
N2 - In situ epitaxial step-growth polymerization driven interfacial functionalization of aromatic thermosetting copolyester (ATSP) with multilayered graphene wrapped alumina nanofiber surface is reported. During a thermal condensation polymerization, ATSP dip-coated fiber strands develop a nanohybrid shish–kebab structure with periodically assembled and off-surface grown micrometer-scale lamella ATSP domains. A mechanism combining the Plateau–Rayleigh instability, the Marangoni effect, and the epitaxial growth phenomena is proposed to elucidate controlling parameters in the process. X-ray diffraction measurements clearly demonstrate the formation of a mesomorphic lamella phase not present within either the neat ATSP or pristine fiber samples. Results of solid-state nuclear magnetic resonance and thermogravimetric analysis reveal the development of an interfacial coupling between the graphene-coated ceramic nanofibers and the ATSP matrix.
AB - In situ epitaxial step-growth polymerization driven interfacial functionalization of aromatic thermosetting copolyester (ATSP) with multilayered graphene wrapped alumina nanofiber surface is reported. During a thermal condensation polymerization, ATSP dip-coated fiber strands develop a nanohybrid shish–kebab structure with periodically assembled and off-surface grown micrometer-scale lamella ATSP domains. A mechanism combining the Plateau–Rayleigh instability, the Marangoni effect, and the epitaxial growth phenomena is proposed to elucidate controlling parameters in the process. X-ray diffraction measurements clearly demonstrate the formation of a mesomorphic lamella phase not present within either the neat ATSP or pristine fiber samples. Results of solid-state nuclear magnetic resonance and thermogravimetric analysis reveal the development of an interfacial coupling between the graphene-coated ceramic nanofibers and the ATSP matrix.
KW - aromatic thermosetting copolyesters
KW - epitaxial polymerization
KW - multilayer graphene-layered alumina nanofibers
KW - nanohybrid shish–kebab
KW - periodic functionalization
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U2 - 10.1002/macp.201700338
DO - 10.1002/macp.201700338
M3 - Article
AN - SCOPUS:85038399713
VL - 218
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
SN - 1022-1352
IS - 24
M1 - 1700338
ER -