01798nas a2200217   4500008004100000022001400041245011000055210006900165260009200234300001400326490000700340520097200347653002101319653002001340653001501360653001701375100002001392700001901412700001901431856013001450       2010                        eng d  a1533-488000aSynthesis and characterization of polyurethane-grafted single-walled carbon nanotubes via click chemistry0 aSynthesis and characterization of polyurethanegrafted singlewall  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScSEP  a5700-57070 v103 a<p>Polyurethane (PU)-grafted carbon nanotubes were synthesized by the coupling of alkyne moiety decorated single walled carbon nanotube (SWCNT) with azide moiety containing PU using Cu(I) catalyzed Huisgen [3 + 2] cycloaddition click chemistry. The azide moiety containing poly(E-caprolactone)diol was synthesized by ring-opening polymerization and further used for PU synthesis. Alkyne-functionalizion of SWCNT was completed by the reaction of p-aminophenyl propargyl ether with SWCNT using a solvent free diazotization procedure. Nuclear magnetic resonance, Fourier transform infrared, and Raman spectroscopic measurements confirmed the functionalization of SWCNT. Scanning electron microscopy and transmission electron microscopy images showed an excellent dispersion of SWCNTs, and specially debundling of SWCNTs could be observed due to polymer assisted dispersion. A quantitative grafting was successfully achieved even at high content of functional groups.</p>10aCarbon nanotubes10aClick chemistry10adispersion10apolyurethane1 aRana, Sravendra1 aCho, Jae, Whan1 aKumar, Indresh  uhttps://library.ncl.res.in/content/synthesis-and-characterization-polyurethane-grafted-single-walled-carbon-nanotubes-click-0