Accession Number : ADA188953
Title : 13C and 15N Solid State MMR Characterization of Aramid-Containing Nylon-6 by In Situ Polymerization with Benzoyl Caprolactam Derivatives.
Descriptive Note : Technical rept.,
Corporate Author : UNIVERSITY OF SOUTHERN MISSISSIPPI HATTIESBURG DEPT OF POLYMER SCIENCE
Personal Author(s) : Powell, Douglas G ; Sikes, Allison M ; Mathias, Lon J
PDF Url : ADA188953
Report Date : 01 Dec 1987
Pagination or Media Count : 12
Abstract : Copolyamides were prepared by in situ polymerization from p-Aminobenzoylcaprolactam and caprolactam systems initiated with sodium hydride. The microstructure of the copolymers as determined by 13C solution NMR varied from alternating to blocks of aliphatic and/or aromatic units depending on the reaction conditions and the ratio of the comonomers. The solid-state CP/MAS 13C NMR were consistent with solution studies. Detailed interpretation was difficult due to large linewidth and number of resonances. Natural abundance CP/MAS 15N spectra were found to less complicated. Based on these results and 15N studies with model amides, 15N CP/MAS was shown to be a useful technique for probing copolymer composition and microstructure.
Descriptors : *AMIDES, *AROMATIC COMPOUNDS, *POLYMERIZATION, *NYLON, HYDRIDES, MICROSTRUCTURE, MODELS, RATIOS, RESONANCE, RESPONSE, SODIUM, SOLUTIONS(GENERAL), SPECTRAL LINES
Subject Categories : Polymer Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE