Article (Scientific journals)
Thermal and UV curable formulations of poly(propylene glycol)−poly(hydroxyurethane) elastomers toward nozzle-based 3D photoprinting
Pierrard, Anna; Aqil, Abdelhafid; Detrembleur, Christophe et al.
2023In Biomacromolecules, 24 (10), p. 4375–4384
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Keywords :
carbon dioxide; network; biomaterial; implant
Abstract :
[en] In this work, isocyanate-free formulations for poly(propylene glycol) polyurethane elastomers are studied. These formulations are based on poly(propylene glycol) end-capped by CO2-sourced cyclic carbonate (bisCC PPG) macro-monomers able to react with amines leading to poly-(hydroxyurethane)s. In order to obtain covalent networks, two curing approaches are studied. First, the direct thermally activated cross-linking of bisCC PPG with a mixture of various aliphatic or aromatic diamines and a triamine is investigated, and in particular the nature of the diamine on the mechanical properties. In the second approach, UV-activated formulations are developed by reacting bisCC PPG with allylamine followed by the addition of a trithiol by photoactivated thiol−ene reaction. The swelling tests show that both systems provide highly cross-linked polymer networks and complementary characterizations highlighted excellent mechanical properties. Thanks to the fast curing and adapted viscosity of the developed photoactive formulation, the latter was found suitable for use as a photoresin for 3D printing as demonstrated by printing a vaginal ring by a nozzle-based photoprinter.
Research center :
Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Pierrard, Anna ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Aqil, Abdelhafid ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Detrembleur, Christophe ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Jérôme, Christine  ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM) Research Unit, Center for Education and Research on Macromolecules (CERM), Belgium
Language :
English
Title :
Thermal and UV curable formulations of poly(propylene glycol)−poly(hydroxyurethane) elastomers toward nozzle-based 3D photoprinting
Publication date :
09 October 2023
Journal title :
Biomacromolecules
ISSN :
1525-7797
eISSN :
1526-4602
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
24
Issue :
10
Pages :
4375–4384
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fund for Scientific Research [BE]
Available on ORBi :
since 16 September 2022

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