Simultaneous Synchrotron SAXS/WAXD on Polymers and Colloids. Benjamin Chu, Chemistry Department, State University of New York, Stony Brook, NY 11794-3400

A comparison is made on small angle x-ray scattering (SAXS) using a rotating anode x-ray generator (Stony Brook), a bending magnet synchrotron x-ray source with crystal (X3A2) and multi-layer (X27C) double monochromators at the National Synchrotron Light Source (NSLS), and an insertion device beamline (ChemMat CARS) at the Advanced Photon Source (APS). The complementary nature of the instrumentation with linear and area x-ray detection, including delay wires, linear photodiode arrays, CCD and imaging plates, is emphasized. Applications of ultrasmall angle x-ray scattering (USAXS) and SAXS to investigate nano- and microstructures in charged gels and microcapsules, and of SAXS and wide angle x-ray diffraction (WAXD) to study the crystallization kinetics of semicrystalline polymer blends and fibers are presented.