Thermally-induced hyperbranching of bromine-containing polyesters by insertion of in situ generated chain-end carbenes

Panagiotis Bexis, Maria Chiara Arno, Craig A Bell, Anthony W. Thomas, Andrew Dove

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Abstract

Hyperbranched, biodegradable PCL-based polymers are obtained through a random but invasive migration of an in-situ generated carbene end group which is unmasked via the thermolysis of its precursor diazirine moiety. These hyperbranched cores are used as macroinitiators for ‘grafting-from’ polymerisation using controlled radical polymerisation leading to amphiphilic copolymers which can subsequently be self-assembled into spherical core-shell micelles.
Original languageEnglish
Pages (from-to)4275-4278
Number of pages4
JournalChemical Communications
Volume57
Issue number35
Early online date24 Mar 2021
DOIs
Publication statusPublished - 2 May 2021

Keywords

  • hyperbranched polymers
  • diazirine
  • caprolactone
  • bromine-functional
  • carbenes

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