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High resolution electron microscopy of β‐poly(ethylene naphthoate)
Author(s) -
Plummer Christopher J. G.
Publication year - 1999
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/(sici)1521-3927(19990301)20:3<157::aid-marc157>3.0.co;2-r
Subject(s) - monoclinic crystal system , resolution (logic) , electron microscope , electron diffraction , crystallography , ethylene , materials science , microscopy , diffraction , reflection high energy electron diffraction , high resolution , analytical chemistry (journal) , chemistry , crystal structure , optics , physics , organic chemistry , artificial intelligence , computer science , catalysis , remote sensing , geology
The β phase of poly(ethylene naphthoate) is suggested by high resolution electron microscopy and electron diffraction data to be monoclinic, with a = 1.320 nm, b = 0.962 nm, c = 1.300 nm, α = 131.50°, β = 90°, and γ = 90° and space group P2 1 /n 1 1. A model structure has been presented which accounts quantitatively for the observed intensities of the hk 0 reflections and provides qualitative agreement with the hkl data.