Jong-Beom Baek ^a, Witold Brostow ^b, Jozef Garbaczyk ^c,d, Gustaw Lagocki ^c, and Kwan-Ho Seo ^a

^a Department of Polymer Science, Kyungpook National University, Taegu 702-701, Korea
^b Departments of Materials Science and Chemistry, University of North Texas, Denton, TX 76203-5310, USA
^c College of Chemical Technology, Technical University of Poznan, Pl. Marii Sktodowskiej-Curie 2 60-965 Poznan, Poland
^d Institute of Inorganic Chemistry, University of Essen, Universitaetsstr. 3-5, 45117 Essen, Germany

ABSTRACT

The blends named in the title were investigated by wide-angle X-ray scattering (WAXS). Given relative chemical similarity of the blend components, formation of a homogeneous blend ans co-crystallization were distinct possibilities. The results are compatible with the assumption of orthorhombic structure in PPSE, with the same reflex indices as in PPS. Parameters of the unit cell of PPS computed on that basis are: a = 0.837, b = 0.559 and c = 1.034 nm. The degree of crystallinity of PPS is approximately 10% lower than that of PPSE. In blends separate crystals of the two components appaer to be formed: crystallinity of a given component seems to be neither enhanced nor dimished by the presence of the other component.

*International Journal of Polymeric Materials. 1997, 36, 65.