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Advances in Materials Science and Engineering
Volume 2016, Article ID 6430416, 9 pages
http://dx.doi.org/10.1155/2016/6430416
Research Article

Kinetics of Free Radical Polymerization of N-Substituted Amides and Their Structural Implications

1Department of General Chemistry, University Politehnica Bucharest, 1-7 Gheorghe Polizu Sector 1, 011061 Bucharest, Romania
2Department of Bioresources and Polymer Science, University Politehnica Bucharest, 1-7 Gheorghe Polizu Sector 1, 011061 Bucharest, Romania
3Centre for Organic Chemistry Costin D. Nenitescu, Romanian Academy, 202B Splaiul Independentei, CP 35-108, 060023 Bucharest, Romania
4Institute of Macromolecular Chemistry “Petru Poni” Iasi, 41A Aleea Grigore Ghica Voda, 700487 Iasi, Romania

Received 28 January 2016; Revised 30 May 2016; Accepted 23 June 2016

Academic Editor: Peter Chang

Copyright © 2016 Anca Aldea et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Two N-substituted amides (N-acryloyl morpholine and N-methyl-N-vinylacetamide) were polymerized in different solvents using radical initiator. The tacticity of obtained polymers was determined by 400 MHz 1H-NMR and 13C-NMR. At a given temperature, the syndiotacticity increased with increasing the solvent polarity. This solvent effect may be related to the hydrogen bonding interaction among solvent, monomer, and/or growing species. A peculiar aspect regards the steric hindrance at the nitrogen atom.