01630nas a2200157   4500008004100000022001400041245013300055210006900188260007100257300001200328490000700340520096900347100001701316700001501333856012401348       2005                        eng d  a0024-929700aStudies on the crystallization behavior of nylon-6 in the presence of layered silicates using variable temperature WAXS and FTIR0 aStudies on the crystallization behavior of nylon6 in the presenc  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a454-4620 v383 a<p>The crystallization of nylon-6 clay nanocomposite was studied by variable temperature wide-angle X-ray scattering (WAXS) and Fourier transform infrared spectroscopy (FTIR). Nylon-6 was found to crystallize into gamma phase at 210 degreesC, as indicated by its characteristic peaks in WAXS. However, an additional peak was observed close but on the lower angle side of the main gamma phase peak, indicating the presence of a metastable phase. The extent of metastable phase that developed was dictated by the clay content in the nanocomposite as well as the crystallization conditions. The temperature dependence of the d spacing of the gamma phase obtained in the presence of clay layers showed difference from the gamma phase obtained by treating nylon-6 in KI/I-2 solution. Variable temperature FTIR studies were conducted on the gamma phases for the first time, and it showed definite differences in the spectra of the phases obtained by the two methods.</p>1 aNair, S., S.1 aRamesh, C.  uhttps://library.ncl.res.in/content/studies-crystallization-behavior-nylon-6-presence-layered-silicates-using-variable-0