Cyclopolymerization. VII. The 13C NMR Spectra of Cyclopolymers Obtained from N,N-Diallyamines |
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| Authors: | S R Johns R I Willing S Middleton A K Ong |
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| Institution: | 1. Division of Applied Organic Chemistry CSIRO , Melbourne, Victoria, 3001, Australia;2. Department of Chemistry Monash , University Clayton , Victoria, 3168, Australia |
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| Abstract: | Pulsed Fourier transform 13C natural abundance nuclear magnetic resonance spectroscopy has been used to determine the structures of the polymers formed by the radical-induced cyclopolymerization of N-substituted-N, N-diallylamines and N-methyl-N, N-bls(2-alkylallyl)-amines. The polymers of N, N-diallylamines all contain cis-and trans-substituted pyrrolidine rings in the ratio 5:1. The polymers of N-methyl-N, N-bis(2-alkylallyl)amines give complex spectra due to the presence of both cis-and trans-pyrrolidine and -piperidine rings, but the difference in chemical shifts of the N-methyl signals from the different structural types allows the spectra to be analyzed. |
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