dc.contributor.author | Magee, Christopher | |
dc.contributor.author | Earla, Aruna | |
dc.contributor.author | Petraitis, Jennifer | |
dc.contributor.author | Higa, Chad | |
dc.contributor.author | Braslau, Rebecca | |
dc.contributor.author | Zetterlund, Per B. | |
dc.contributor.author | Aldabbagh, Fawaz | |
dc.date.accessioned | 2018-09-20T16:15:29Z | |
dc.date.available | 2018-09-20T16:15:29Z | |
dc.date.issued | 2014-01-01 | |
dc.identifier.citation | Magee, Christopher; Earla, Aruna; Petraitis, Jennifer; Higa, Chad; Braslau, Rebecca; Zetterlund, Per B. Aldabbagh, Fawaz (2014). Synthesis of fluorinated alkoxyamines and alkoxyamine-initiated nitroxide-mediated precipitation polymerizations of styrene in supercritical carbon dioxide. Polym. Chem. 5 (19), 5725-5733 | |
dc.identifier.issn | 1759-9954,1759-9962 | |
dc.identifier.uri | http://hdl.handle.net/10379/12574 | |
dc.description.abstract | TIPNO (2,2,5-trimethyl-4-phenyl-3-azahexane-3-nitroxide)-alkoxyamine was found to give reasonably controlled/living nitroxide-mediated (NMP) precipitation polymerizations of styrene in supercritical carbon dioxide (scCO(2)). In contrast under the same conditions, the analogous SG1 (N-tert-butyl-N-(1-diethylphosphono-2,2-dimethylpropyl)nitroxide)-alkoxyamine gave higher rates of polymerization and inferior controlled/living character. The circumvention of the requirement for excess free (nitroxide](0) allowed the study of nitroxide partitioning effects in scCO(2) for three newly synthesized fluorinated alkoxyamines. Two alkoxyamines dissociated into scCO(2)-philic fluorinated TIPNO-nitroxide derivatives, while another contains a similar sized fluorinated "foot". Despite the increased steric bulk about the N-O bond for the novel fluorinated alkoxyamines, all polymerizations proceeded at a similar rate and level of control to the TIPNO system in solution (toluene). PREDICI simulations for the styrene/TIPNO system are used to support extensive partitioning effects observed in scCO(2) for the fluorinated alkoxyamines. | |
dc.publisher | Royal Society of Chemistry (RSC) | |
dc.relation.ispartof | Polym. Chem. | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | transfer radical polymerization | |
dc.subject | controlled dispersion polymerization | |
dc.subject | methyl-methacrylate | |
dc.subject | chain transfer | |
dc.subject | block-copolymers | |
dc.subject | vinyl monomers | |
dc.subject | raft | |
dc.subject | co2 | |
dc.subject | stabilizer | |
dc.subject | atrp | |
dc.title | Synthesis of fluorinated alkoxyamines and alkoxyamine-initiated nitroxide-mediated precipitation polymerizations of styrene in supercritical carbon dioxide | |
dc.type | Article | |
dc.identifier.doi | 10.1039/c4py00757c | |
dc.local.publishedsource | http://eprints.kingston.ac.uk/39345/1/Al-Dabbagh-F-39345-AAM.pdf | |
nui.item.downloads | 0 | |