Structural polymorphism in poly(3-ethyl-3-phenyl-2-azetidinone)
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Paper "Structural polymorphism in poly(3-ethyl-3-phenyl-2-azetidinone) in Materials Today Communications (6,822Mb) (Restricted access)
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hdl:2117/96724
Document typeArticle
Defense date2016-08-31
PublisherElsevier
Rights accessRestricted access - publisher's policy
Abstract
The structural characterization of chiral nylon-3 derivative, poly (3-ethyl-3-phenyl-2- azetidinone) (PEPA) has been carried out using FTIR, thermal analysis, X-ray diffraction and electron microscopy. X-ray diffraction of power and fiber samples were analyzed together with electron diffraction patterns of single crystals obtained from isothermal crystallization in solution. Two different crystalline forms were found in accordance with DSC traces, FTIR spectra and X-ray diffraction diagrams. Electron microscopy corroborates the morphological and crystallographic differences between both crystalline forms. Molecular modeling was applied to characterize the two crystalline forms, which were related to different conformation and consequent space symmetry into the crystal unit cell
CitationIribarren, J. Structural polymorphism in poly(3-ethyl-3-phenyl-2-azetidinone). "Materials Today Communications", 31 Agost 2016, vol. 9, p. 7-15.
ISSN2352-4928
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S2352492816300988
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