01789nas a2200169   4500008004100000245008000041210006900121260000800190300001400198490000700212520121000219100002101429700002001450700001701470700001701487856011501504       2007                        eng d00aPET-SWNT nanocomposites through ultrasound assisted dissolution-evaporation0 aPETSWNT nanocomposites through ultrasound assisted dissolutionev  cJUN  a2279-22850 v433 a<p>Poly(ethylene terephthalate) (PET) based nanocomposites have been prepared with single walled carbon nanotubes (SWNTs) through an ultrasound assisted dissolution-evaporation method. Differential scanning calorimetry studies showed that SWNTs nucleate crystallization in PET at weight fractions as low as 0.3%, as the nanocomposite melt crystallized during cooling at temperature 24 degrees C higher than neat PET of identical molecular weight. Isothermal crystallization studies also revealed that SWNTs significantly accelerate the crystallization process. Mechanical properties of the PET-SWNT nanocomposites improved as compared to neat PET indicating the effective reinforcement provided by nanotubes in the polymer matrix. Electrical conductivity measurements on the nanocomposite films showed that SWNTs at concentrations exceeding 1 wt% in the PET matrix result in electrical percolation. Comparison of crystallization, conductivity and transmission electron microscopy studies revealed that ultrasound assisted dissolution-evaporation method enables more effective dispersion of SWNTs in the PET matrix as compared to the melt compounding method. (c) 2007 Elsevier Ltd. All rights reserved.</p>1 aAnoop, Anand, K.1 aAgarwal, U., S.1 aNisal, Anuya1 aJoseph, Rani  uhttps://library.ncl.res.in/content/pet-swnt-nanocomposites-through-ultrasound-assisted-dissolution-evaporation