Organocatalyzed continuous flow ring-opening polymerizations to homo- and block-polylactones

Organocatalyzed continuous flow ring-opening polymerizations to homo- and block-polylactones TBD catalyzed continuous flow ring-opening polymerizations of ε-caprolactone and δ-valerolactone were exemplified as the model investigation system of organocatalytic synthesis of polyesters in the simple PTFE tubular microreactor (MR). In contrast to the batch reactor (BR), significant benefits of utilizing continuous flow strategy were achieved including higher level control of molecular weights and molecular weight distributions as well as faster polymerizations (kapp(CL) = 0.00602 (MR) vs 0.00286 min−1 (BR); kapp(VL) = 0.159 (MR) vs 0.079 min−1 (BR)). Furthermore, more easily and efficiently block copolymerizations were conducted in the integrated-microreactor by sequential introduction of monomers to well-defined poly(δ-valerolactone)-block-poly(ε-caprolactone) and poly(ε-caprolactone)-block-poly(δ-valerolactone). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Elsevier

Organocatalyzed continuous flow ring-opening polymerizations to homo- and block-polylactones

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0032-3861
D.O.I.
10.1016/j.polymer.2016.01.019
Publisher site
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Abstract

TBD catalyzed continuous flow ring-opening polymerizations of ε-caprolactone and δ-valerolactone were exemplified as the model investigation system of organocatalytic synthesis of polyesters in the simple PTFE tubular microreactor (MR). In contrast to the batch reactor (BR), significant benefits of utilizing continuous flow strategy were achieved including higher level control of molecular weights and molecular weight distributions as well as faster polymerizations (kapp(CL) = 0.00602 (MR) vs 0.00286 min−1 (BR); kapp(VL) = 0.159 (MR) vs 0.079 min−1 (BR)). Furthermore, more easily and efficiently block copolymerizations were conducted in the integrated-microreactor by sequential introduction of monomers to well-defined poly(δ-valerolactone)-block-poly(ε-caprolactone) and poly(ε-caprolactone)-block-poly(δ-valerolactone).

Journal

PolymerElsevier

Published: Feb 10, 2016

References

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    Peng, H.; Ling, J.; Liu, J.; Zhu, N.; Ni, X.; Shen, Z.
  • Angew. Chem. Int. Ed.
    Connor, E.F.; Moller, M.; Glauser, T.; Hedrick, J.L.
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    Bonduelle, C.; Martín-Vaca, B.; Cossío, F.P.; Bourisou, D.
  • Macromolecules
    Tonhauser, C.; Natalello, A.; Löwe, H.; Frey, H.
  • Polym. Chem.
    Burns, J.A.; Houben, C.; Anastasaki, A.; Waldron, C.; Lapkin, A.A.; Haddleton, D.M.

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