Acrylonitrile Copolymerizations. II. Sequence Distribution in Methyl-Methacrylate Copolymers
- 1 November 1968
- journal article
- research article
- Published by Taylor & Francis in Journal of Macromolecular Science: Part A - Chemistry
- Vol. 2 (7) , 1303-1320
- https://doi.org/10.1080/10601326808051899
Abstract
The distributions of the sequences of methyl methacrylate units are calculated, first by taking into account and then ignoring the effects of the penultimate units on the reactivity of the growing radicals, previously deduced from kinetic measurements. The study of the infrared and NMR spectra of a set of copolymers covering the whole range of composition does support the occurrence of these penultimate effects. Admitting these effects, it is possible to propose the assigments of several bands in the methoxy and α-methyl regions of the NMR spectra.Keywords
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