Fu, Q;
Ruan, Q;
McKenzie, TG;
Reyhani, A;
Tang, J;
Qiao, GG;
(2017)
Development of a Robust PET-RAFT Polymerization Using Graphitic Carbon Nitride (g-C3N4).
Macromolecules
, 50
(19)
pp. 7509-7516.
10.1021/acs.macromol.7b01651.
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Abstract
The metal-free semiconductor, graphitic carbon nitride (g-C3N4), was introduced into RAFT polymerization for the first time. The production of linear polyacrylate and polyacrylamide has been achieved via PET-RAFT polymerization using g-C3N4 as a photoactive organocatalyst without prior deoxygenation. The resulting polymers display controlled molecular weights, narrow polymer dispersities, and high end-group fidelity as exemplified by 1H NMR analysis, MALDI-TOF-MS measurement, and chain extension experiment. Temporal control is illustrated by intermittent light and dark cycles, with polymer growth arrested in the absence of irradiation. The effects of changing RAFT agents (i.e., trithiocarbonates), solvents, catalyst concentrations, and degrees of polymerization in this system have been investigated. The successful polymerization of nonpurified monomer (i.e., still containing radical inhibitors) demonstrates the robust nature of the presented PET-RAFT system.
| Type: | Article |
|---|---|
| Title: | Development of a Robust PET-RAFT Polymerization Using Graphitic Carbon Nitride (g-C3N4) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.macromol.7b01651 |
| Publisher version: | https://doi.org/10.1021/acs.macromol.7b01651 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Polymer Science, LIVING RADICAL POLYMERIZATION, OXYGEN INHIBITION, ELECTRON-TRANSFER, SET-LRP, TOLERANCE, NANOPARTICLES, MECHANISM, GROWTH, ATRP |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10085934 |
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