Jump to main content
Jump to site search

Issue 2, 2021
Previous Article Next Article

Solubility-governed architectural design of polyhydroxyurethane-graft-poly(ε-caprolactone) copolymers

Author affiliations

Abstract

Polyhydroxyurethanes (PHUs) are strong candidates for replacing conventional isocyanate-based polyurethanes (PUs), yet analogous structural diversity and subsequent properties have so far not been reached for PHUs. Here, we demonstrate that by rational design of the PHU microstructure and utilization of solubility as an enabling tool, complex architectures can be realized with benign reagents and atom-economical reactions, without harsh reaction conditions and solvents. Polyhydroxyurethane-graft-poly(ε-caprolactone), PHU-graft-PCL, copolymers were synthesized through graft ring-opening polymerization of ε-caprolactone (CL) from the pendent –OH groups of a PHU. The structure of the PHU was carefully designed to allow its dissolution in CL and enable bulk polymerization conditions. Solubility tests of different PHUs in various lactones corroborated that the PHU-lactone structure pair was critical to achieve dissolution. The optimum reaction conditions were kinetically determined, the copolymers’ structure was confirmed by 1H, DOSY and 31P NMR spectroscopy and their thermal properties were evaluated by DSC and TGA analysis. Our work demonstrated the effectiveness of utilizing solubility to achieve complex architectures, expanding the synthetic intricacy for PHUs and could expand their future applications and opportunities.

Graphical abstract: Solubility-governed architectural design of polyhydroxyurethane-graft-poly(ε-caprolactone) copolymers

Back to tab navigation

Supplementary files

Article information


Submitted
30 Jul 2020
Accepted
31 Oct 2020
First published
09 Nov 2020

This article is Open Access

Polym. Chem., 2021,12, 196-208
Article type
Paper

Solubility-governed architectural design of polyhydroxyurethane-graft-poly(ε-caprolactone) copolymers

C. Pronoitis, M. Hakkarainen and K. Odelius, Polym. Chem., 2021, 12, 196
DOI: 10.1039/D0PY01089H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements