Macromolecules 1993,26, 4006-4012
4006
Long-Range Inhomogeneities in Sulfonated Polystyrene Ionomers Yingjie Li,t Dennis
G.Peiffer,t a n d Benjamin Chu'lt
Department of Chemistry, State University of New York at Stony Brook, Long Island, New York 11794-3400, and Corporate Research Science Laboratory, Exxon Research and Engineering Company, Clinton Township, Route 22 East, Annandale, New Jersey 08801 Received March I , 1993; Revised Manuscript Received May 4, 1993 ABSTRACT Two Bonse-Hart ultra-small-angleX-ray scattering (USAXS)cameras were constructed and calibrated by using a polystyrene latex suspension and laser light scattering. The instruments were used to investigate the long-range inhomogeneities in a series of sulfonated polystyrene ionomers. The USAXS measurements were mainly centered in the region of q
