Authors
|
Friedel, P. ; Pospiech, D. ; Jehnichen, D. ; Bergmann, J. ; Ober, C.K.
|
Title
|
Polyesters with Semifluorinated Side Chains: A Proposal for the Solid-State Structure
|
Date
|
20.09.2000
|
Number
|
8195
|
Abstract
|
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(R). A triclinic unit cell with alpha = 0.575 am, b = 4.06 nm, c = 2.1 nm, alpha = 91.2 degrees, beta = 85.7 degrees, and gamma = 66.1 degrees was obtained using space group symmetry P (1) over bar (No. 2) with Z = 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. (C) 2000 John Wiley & Sons, Inc.
|
Publisher
|
Journal of Polymer Science. B, Polymer Physics
|
Wikidata
|
13
|
Citation
|
Journal of Polymer Science. B, Polymer Physics 38 (2000) 1617-1625
|
DOI
|
https://doi.org/10.1002/(SICI)1099-0488(20000615)38:12<1617::AID-POLB70>3.0.CO;2-Q
|
Tags
|
semifluorinated side chain polyester molecular modeling rietveld refinement low energy net planes liquid-crystalline copolyesters
|