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- Bielawski, Christopher W.
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Photoswitchable NHC-promoted ring-opening polymerizations
- Author(s)
- Neilson, Bethany M., Bielawski, Christopher W.
- Issued Date
- 2013-06
- Citation
- CHEMICAL COMMUNICATIONS, v.49, no.48, pp.5453 - 5455
- Abstract
- The UV-induced photocyclization of a dithienylethene-annulated N-heterocyclic carbene precatalyst enabled photoswitchable ring-opening polymerizations of epsilon-caprolactone and delta-valerolactone. The polymerizations proceeded efficiently in ambient light, however UV irradiation attenuated the reaction rate (k(amb)/kUV = 59). Subsequent visible light exposure reversed the photocyclization and restored catalytic activity.
- Publisher
- ROYAL SOC CHEMISTRY
- ISSN
- 1359-7345
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