Accession Number : ADA187067
Title : 13C and 14N Solid State NMR Characterization of Aramid-Containing Nylon-6 Polymers Synthesized by In Situ Polymerization of Caprolactam 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
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 th comonomers. The solid-state CP/MAS 13C NMR were consistent with solution studies. Detailed interpretation was difficult due to large linewidth and number resonances. Natural abundance CP/MAS 15N spectra were found to less complicated. Based on these results an 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 , *COPOLYMERS , *POLYMERIZATION , MICROSTRUCTURE , MODELS , RATIOS , RESONANCE , RESPONSE , SODIUM , SOLUTIONS(GENERAL) , SPECTRAL LINES
Subject Categories : Polymer Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE