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WAXS investigations of the crystallinities in copolymers related to poly(ethylene oxide)

✍ Scribed by Ning Yao; Xiaoding Li; Yaohui Li; Xiaowan Nu; Hong-Quan Xie

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
288 KB
Volume
28
Category
Article
ISSN
0014-3057

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✦ Synopsis

Several types of copolymers containing poly(ethylene oxide) (PEO) combined with polybuladiene, polystyrene, poly(ethyl acrylate), poly(butyl acrylate), propylene oxide or allyl glycolyl ether were investigated by wide angle X-ray scattering (WAXS). Two kinds of crystallinities, apparent and substantial, were calculated using a general method established previously. The results showed that the crystallinities in the PEO-containing copolymers were considerably affected by copolymer composition, molecular weight of PEO component, nature of the co-units and the types of copolymerization.

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The authors are indebted to Prof. E. Straube (Halle), Prof. K.-F. Arndt (Dresden) and Prof. J. Kressler (Merseburg) for helpful discussions concerning scattering measurements. Thanks to Chr. Sommer for support in static light scattering experiments.