The unexpected behaviour of epoxidised macromonomers derived from catalytic chain transfer during ring opening copolymerisation

Literature Information

Publication Date 2012-05-25
DOI 10.1039/C2PY20195J
Impact Factor 5.582
Authors

Bas G. P. van Ravensteijn, Robbert Duchateau, Johan P. A. Heuts


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Abstract

In our attempts to combine catalytic chain transfer polymerisation (CCTP) with ring-opening polymerisation (ROP), we investigated the homopolymerisation and copolymerisation behaviour of epoxidised CCTP-derived (macro)monomers. Attempts at polymerisation and copolymerisation proved futile. However, some interesting end-functionalised polymers were generated during the attempted copolymerisation reactions. The cationic ROP of epoxidised CCTP-derived (macro)monomers was unsuccessful due to the formation of stable 5-membered rings, incapable of propagation. In a copolymerisation of these epoxides with tetrahydrofuran (THF), however, we observed that the epoxides did not act as a comonomer but rather as an end-capper, providing a functional end group. Most surprising, was the observation that the epoxidised CCTP-derived (macro)monomers significantly catalyse the homopolymerisation of THF.

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Polymer Chemistry

Polymer Chemistry
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