TY - JOUR AU1 - Chuah, Hoe H. AU2 - Chang, Benjamin T. A. AB - A wide-angle X-ray diffraction method for measuring poly(trimethylene terephthalate) (PTT) crystal orientation function was described. It was based on Wilchinsky's treatment of uniaxial orientation. Although PTT has a low symmetry triclinic cell only one equatorial reflection is needed for the measurement because the unit cell β-angle happened to be 90°, and there is a strong 010 reflection. The choice of unit cell parameters from the conflicting literature data and the reduction of Wilchinsky's equation into a simple form allowing the measurement of only one reflection were presented. The discrepancies between literature wide-angle X-ray and electron diffraction unit cell volumes and crystal densities were also discussed. TI - Crystal orientation function of poly(trimethylene terephthalate) by wide-angle x-ray diffraction JF - Polymer Bulletin DO - 10.1007/s002890170061 DA - 2001-05-01 UR - https://www.deepdyve.com/lp/springer-journals/crystal-orientation-function-of-poly-trimethylene-terephthalate-by-aKXExdLxT9 SP - 307 EP - 313 VL - 46 IS - 4 DP - DeepDyve ER -