Chain transfer to solvent in the radical polymerization of structurally diverse acrylamide monomers using straight-chain and branched alcohols as solvents

Magee, Christopher, Sugihara, Yusuke, Zetterlund, Per B and Aldabbagh, Fawaz (2014) Chain transfer to solvent in the radical polymerization of structurally diverse acrylamide monomers using straight-chain and branched alcohols as solvents. Polymer Chemistry, 5(7), pp. 2259-2265. ISSN (print) 1759-9954

Full text available as:
[img]
Preview
Text
Al-Dabbagh-F-39347-AAM.pdf - Accepted Version

Download (671kB) | Preview

Abstract

Chain transfer to solvent in conventional radical polymerizations of N-tert-butylacrylamide (TBAM) and N-(2-morpholin-4-ylethyl) acrylamide (MEA) in a range of alcohol solvents is investigated. Mayo analysis of polymerization of TBAM in linear alcohols (C-3-C-9) resulted in an approximately linear increase in chain transfer to solvent constant (C-tr,(S)) with the number of methylene (CH2) units in the solvent. The branched alcohol 3-methyl-3-pentanol gave the smallest C-tr,C-S (using Mayo analysis), and thus allowed attainment of higher molecular weights (MWs) in the nitroxide-mediated polymerizations (NMP) of TBAM. Overall, the data show that MEA is more prone to chain transfer to solvent than TBAM (higher C-tr,C-S), and further analysis of the conventional radical polymerization of MEA in 3-methyl-3-pentanol indicate chain transfer to monomer may also be occurring. The first controlled/ living polymerizations of MEA are detailed with chain transfer having a greater impact on maximum achievable MWs in NMP in comparison to TBAM.

Item Type: Article
Research Area: Chemistry
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing (until 2017) > School of Pharmacy and Chemistry
Related URLs:
Depositing User: Fawaz Al-Dabbagh
Date Deposited: 07 Nov 2017 11:15
Last Modified: 07 Nov 2017 11:15
DOI: https://doi.org/10.1039/C3PY01441J
URI: http://eprints.kingston.ac.uk/id/eprint/39347

Actions (Repository Editors)

Item Control Page Item Control Page