dc.contributor.author | Chalmers, Benjamin A. | |
dc.contributor.author | Magee, Christopher | |
dc.contributor.author | Cheung, David L. | |
dc.contributor.author | Zetterlund, Per B. | |
dc.contributor.author | Aldabbagh, Fawaz | |
dc.date.accessioned | 2017-11-20T09:45:22Z | |
dc.date.issued | 2017-10-07 | |
dc.identifier.citation | Chalmers, Benjamin A., Magee, Christopher, Cheung, David L., Zetterlund, Per B., & Aldabbagh, Fawaz. (2017). CO2-responsive polyacrylamide copolymer vesicles with acid-sensitive morpholine moieties and large hydrophobic RAFT end-group. European Polymer Journal, 97(Supplement C), 129-137. doi: https://doi.org/10.1016/j.eurpolymj.2017.10.004 | en_IE |
dc.identifier.issn | 1873-1945 | |
dc.identifier.uri | http://hdl.handle.net/10379/6970 | |
dc.description.abstract | Sequential Reversible Addition Fragmentation Chain Transfer (RAFT) polymerizations using 2,2′-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride (VA-044) and 2-(dodecylthiocarbonothioylthio)-2-methylpropionic acid (DDMAT) were used to give amphiphilic polyacrylamide block copolymers containing N-(2-morpholin-4-ylethyl)acrylamide (MEA), where the morpholine moieties are CO2-responsive. The order in which monomers were polymerized determined the placement of the large hydrophobic RAFT end group with more complex ABA′ type self-assembly (e.g. patterned and large worm-like vesicles, large compound micelles) obtained when the dodecyl trithiocarbonate end-group was attached to the hydrophilic poly(MEA) block. Cleaving the hydrophobic end group reverts self-assembly to simpler spherical vesicles observed in the triblock of the same chemical composition, but with the RAFT end group attached to the hydrophobic poly(tert-butyl acrylamide) block. Ionization of the hydrophilic poly(MEA) block through flushing with CO2 irreversibly shifts self-assembly towards lower order morphologies with spherical micelles being more favoured than vesicles. | en_IE |
dc.description.sponsorship | We thank the Irish Research Council (IRC) for a Government of Ireland Postdoctoral Fellowship for B.A. Chalmers and the IRC for a postgraduate scholarship award for C. Magee as part of the First IUPAC Transnational Call in Polymer Chemistry co-ordinated by F. Aldabbagh. We thank Eadaoin Timmins at the Centre of Microscopy and Imaging (NUI Galway) for TEM. | en_IE |
dc.format | application/pdf | en_IE |
dc.language.iso | en | en_IE |
dc.publisher | Elsevier | en_IE |
dc.relation.ispartof | European Polymer Journal | en |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | Block copolymer | en_IE |
dc.subject | Micelle | en_IE |
dc.subject | Radical polymerization | en_IE |
dc.subject | Self-assembly | en_IE |
dc.title | CO2-responsive polyacrylamide copolymer vesicles with acid-sensitive morpholine moieties and large hydrophobic RAFT end-group | en_IE |
dc.type | Article | en_IE |
dc.date.updated | 2017-11-10T09:18:24Z | |
dc.local.publishedsource | https://doi.org/10.1016/j.eurpolymj.2017.10.004 | en_IE |
dc.description.peer-reviewed | peer-reviewed | |
dc.contributor.funder | |~|6201984|~| | |
dc.description.embargo | 2019-10-07 | |
dc.internal.rssid | 13390759 | |
dc.local.contact | David Cheung, School Of Chemistry, Nuig. Email: david.cheung@nuigalway.ie | |
dc.local.copyrightchecked | No | |
dc.local.version | ACCEPTED | |
nui.item.downloads | 233 | |