Modification of Functional Polyesters Bearing Norbornene Moieties via Olefin Metathesis Reactions

Year 2018, Volume: 46 Issue: 1, 61 - 68, 01.03.2018

Bengi Özgün Öztürk

Abstract

I
n this study, unsaturated functional polyester derivatives were synthesized via polycondensation reactions
of 5-norbornene-2,3-dicarboxylic anhydride and 1,6-hexanediol. Functional unsaturated polyesters were modified
using methyl acrylate as ring opening/cross-metathesis reaction partner. The solubility and hydrophobic/hydrophilic
character of polyester was tuned by integrating allyl end capped poly(ethyleneglycol) by
ring opening/cross-metathesis reactions. Norbornene moiety of unsaturated polyesters allowed us to use ring
opening metathesis polymerization reactions to form side-chain poly(norbornene) on main polyester chain
using Grubbs 1st, 3rd and Hoveyda-Grubbs 2nd generation catalysts as initiators, resulting in gel-like materials. 

Keywords

Ring opening/cross-metathesis, polyesters, ruthenium, polycondensation

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