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Issue 11, 2016
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Copolymers from norbornene and norbornadiene with organized morphologies and high Tg values obtained via ROMP with a highly reactive [RuCl3(PCy3)2] complex

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Abstract

The [RuCl3(PCy3)2] complex presented high reactivity toward ring opening metathesis polymerization (ROMP) of norbornadiene (NBD) in a non-degassed solution upon addition of ethyl diazoacetate (EDA). Quantitative yields of polyNBD were obtained instantaneously at 25 °C. ROMP of norbornene (NBE) occurred better at 50 °C for 60 min, with 95% of isolated polyNBE. Copolymers with different porous structures were obtained from ROMP of NBE in the presence of NBD with different starting [NBE]/[NBD] molar ratios at 25 °C. SEM micrographs showed a more organized porous structure as the NBD loading decreased. A well-defined honeycomb-like pattern was recorded for the copolymer from the run with an NBE : NBD molar ratio load of 5000 : 500. The Tg values varied from 37 °C in polyNBE to 90 °C in poly[NBE-co-NBD] as the NBD loading increased.

Graphical abstract: Copolymers from norbornene and norbornadiene with organized morphologies and high Tg values obtained via ROMP with a highly reactive [RuCl3(PCy3)2] complex

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Publication details

The article was received on 06 Jul 2016, accepted on 15 Sep 2016 and first published on 15 Sep 2016


Article type: Paper
DOI: 10.1039/C6NJ02096H
Citation: New J. Chem., 2016,40, 9424-9431
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    Copolymers from norbornene and norbornadiene with organized morphologies and high Tg values obtained via ROMP with a highly reactive [RuCl3(PCy3)2] complex

    C. P. Ferraz, L. R. Fonseca, V. Tomazetti, F. C. S. Silva, B. S. Lima-Neto and V. P. Carvalho, New J. Chem., 2016, 40, 9424
    DOI: 10.1039/C6NJ02096H

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