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Polyesters with semifluorinated side chains: A proposal for the solid-state structure

✍ Scribed by Peter Friedel; Doris Pospiech; Dieter Jehnichen; Jörg Bergmann; Christopher K. Ober

Book ID: 101266809
Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 242 KB
Volume: 38
Category: Article
ISSN: 0887-6266
DOI: 10.1002/(sici)1099-0488(20000615)38:12<1617::aid-polb70>3.0.co;2-q

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✦ Synopsis

A proposal for the solid-state structure of poly(p-phenylene isophthalate) with oxydecylperfluorodecyl side chains is presented, which was calculated by the new Rietveld refinement program BGMN. A triclinic unit cell with a ϭ 0.575 nm, b ϭ 4.06 nm, c ϭ 2.1 nm, ␣ ϭ 91.2°, ␤ ϭ 85.7°, and ␥ ϭ 66.1°was obtained using space group symmetry P1 (No. 2) with Z ϭ 2. All fractional atom coordinates, reflections and structure factors F were determined. The results show that highly occupied netplanes lie in plane and perpendicularly to the side chains. It may be supposed that these net planes will form the low-energy surface of the polymer.

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