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http://hdl.handle.net/1942/22068
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DC Field | Value | Language |
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dc.contributor.author | VANDENBERGH, Joke | - |
dc.contributor.author | Schweitzer-Chaput, Bertrand | - |
dc.contributor.author | Klussmann, Martin | - |
dc.contributor.author | JUNKERS, Tanja | - |
dc.date.accessioned | 2016-09-21T10:41:29Z | - |
dc.date.available | 2016-09-21T10:41:29Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | MACROMOLECULES, 49(11), p. 4124-4135 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/1942/22068 | - |
dc.description.abstract | An acid-induced cydohexanone/tert-butylhydroperoxide initiation system for ambient temperature reversible addition fragmentation transfer (RAFT) polymerization of vinyl monomers is presented. The reaction system is optimized for the synthesis of poly(n-butyl acrylate) of various chain length. The polymerization shows typical living characteristics and polymers with dispersities close to 1.1 are obtained. Analysis of the polymer end groups by means of soft ionization mass spectrometry reveals the typical distribution of polymer containing both R and Z RAFT end groups and a minor distribution of a RAFT polymer carrying a cyclohexanone end group in alpha position. This observation demonstrates that the polymerization is initiated solely by ketone radicals despite a relatively complex initiation mechanism that involves several intermediates. The room, temperature-derived homopolymers are successfully chain extended with tert-butyl acrylate resulting in well-defined block copolymer structures. To demonstrate the versatility of the approach, the room temperature RAFT polymerization is also applied to synthesize styrene and N-isopropylacrylamide, yielding best results for polystyrene. Finally, also a bisperoxide structure is tested as an alternative for the ketone/peroxide mixture. Polymerization proceeds substantially faster in this case and successful controlled polymerization to full conversion is achieved even at 0 degrees C. In general the proposed room temperature RAFT technique is very easy to carry out, in principle easily up scalable, metal free and shows high potential toward the synthesis of well-defined temperature sensitive materials. | - |
dc.description.sponsorship | The authors are grateful for funding in the framework of the Odysseus scheme from the Fonds Wetenschappelijk Onderzoek (FWO). Additionally, support from the European Science Foundation, "Precision Polymer Materials (P2M)", and the Hercules foundation for funding in the framework of the project "LC-MS@UHasselt: Linear Trap Quadrupool-Orbitrap mass spectrometer" is gratefully acknowledged. We thank Amalesh Roy and Wolfgang Schrader for mass spectrometric measurements. M.K. and B.S.-C. thank the MPI fur Kohlenforschung and the DFG for funding (Heisenberg Scholarship to M.K.) | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.rights | © 2016 American Chemical Society | - |
dc.title | Acid-Induced Room Temperature RAFT Polymerization: Synthesis and Mechanistic Insights | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 4135 | - |
dc.identifier.issue | 11 | - |
dc.identifier.spage | 4124 | - |
dc.identifier.volume | 49 | - |
local.format.pages | 12 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | [Vandenbergh, Joke; Junkers, Thomas] Hasselt Univ, Inst Mat Res IMO, Polymer React Design Grp, Campus Diepenbeek,Bldg D, B-3590 Diepenbeek, Belgium. [Schweitzer-Chaput, Bertrand; Klussmann, Martin] Max Planck Inst Kohlenforsch, Kaiser Wilhelm Pl 1, D-45470 Mulheim, Germany. [Junkers, Thomas] IMEC Div IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. | - |
local.publisher.place | WASHINGTON | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1021/acs.macromol.6b00192 | - |
dc.identifier.isi | 000378016200014 | - |
item.fulltext | With Fulltext | - |
item.accessRights | Restricted Access | - |
item.validation | ecoom 2017 | - |
item.contributor | VANDENBERGH, Joke | - |
item.contributor | Schweitzer-Chaput, Bertrand | - |
item.contributor | Klussmann, Martin | - |
item.contributor | JUNKERS, Tanja | - |
item.fullcitation | VANDENBERGH, Joke; Schweitzer-Chaput, Bertrand; Klussmann, Martin & JUNKERS, Tanja (2016) Acid-Induced Room Temperature RAFT Polymerization: Synthesis and Mechanistic Insights. In: MACROMOLECULES, 49(11), p. 4124-4135. | - |
crisitem.journal.issn | 0024-9297 | - |
crisitem.journal.eissn | 1520-5835 | - |
Appears in Collections: | Research publications |
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acs%2Emacromol%2E6b00192.pdf Restricted Access | Published version | 2.54 MB | Adobe PDF | View/Open Request a copy |
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