Polypeptide/Multiwalled carbon nanotube hybrid complexes stabilized through noncovalent bonding interactions

Content Provider	Semantic Scholar
Author	Lin, Yung-Chih Kuo, Shiao-Wei
Copyright Year	2014
Abstract	In this study, we used click chemistry to synthesize new linear polypeptide-g-pyrene polymers from a mono-azido-functionalized pyrene derivative (N3-Py) and several poly(γ-propargyl-l-glutamate) (PPLG) oligomers. Incorporating the pyrene units as side chains enhanced the α-helical conformations of these PPLG oligomers in the solid state, as determined using Fourier transform infrared (FTIR) spectroscopy; it also increased the temperature stability of the α-helical secondary structures of the grafted PPLG oligomers, relative to those of the pure PPLG species, as revealed through temperature-dependent FTIR spectroscopic analyses. In addition, the thermal properties of the PPLG-g-Py polypeptides (e.g., glass transition temperatures increased by ca. 100 °C) were superior to those of pure PPLG oligomers. Mixing the PPLG-g-Py oligomers with multiwalled carbon nanotubes (MWCNTs) in dimethylformamide led to the formation of highly dispersible PPLG-g-Py/MWCNT organic/inorganic hybrid complex materials. Fluorescence emission spectra revealed significant π–π stacking between the PPLG-g-Py oligomers and the MWCNTs in these complexes. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 321–329
Starting Page	321
Ending Page	329
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1002/pola.27000
Volume Number	52
Alternate Webpage(s)	http://smr.nsysu.edu.tw:10080/research/201.pdf
Alternate Webpage(s)	https://doi.org/10.1002/pola.27000
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article