3D Printing of Dual-Cure Networks Based on (Meth)acrylate/Bispropargyl Ether Building Blocks
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in: Advanced engineering materials, Jahrgang 2022, 2200901, 29.09.2022.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - 3D Printing of Dual-Cure Networks Based on (Meth)acrylate/Bispropargyl Ether Building Blocks
AU - Sommer, Katharina
AU - Rieger, Paul
AU - Müller, Stefanie Monika
AU - Schwarz, Romana
AU - Trimmel, Gregor
AU - Feuchter, Michael
AU - Grießer, Thomas
N1 - Publisher Copyright: © 2022 The Authors. Advanced Engineering Materials published by Wiley-VCH GmbH.
PY - 2022/9/29
Y1 - 2022/9/29
N2 - In recent years, dual-cure chemistry has been exploited to realize interpenetrating networks (IPNs) that provide enhanced thermo-mechanical properties. In this contribution, photoinduced curing of (meth)acrylates is used to build the desired 3D structure, whereas the thermally triggered polymerization reaction of 2H-chromene functionalized building blocks is utilized to create the IPN. This strategy combines the advantages of traditional UV-curable monomers with high-performance thermosets. After the successful synthesis of the bispropargyl ether derivative, i.e., 4,4′-(propane-2,2-diyl)bis((ethynyloxy)benzene), its thermally induced conversion to the corresponding 2H chromene functionalized prepolymer is studied by Fourier-transform infrared spectroscopy and gel permeation chromatography. The network formation as well as the printability of various formulations containing different amounts of the thermo-curable building block is investigated. The obtained IPNs provide enhanced thermo-mechanical properties making these resins suitable for the additive manufacturing of functional 3D parts for high-performance applications.
AB - In recent years, dual-cure chemistry has been exploited to realize interpenetrating networks (IPNs) that provide enhanced thermo-mechanical properties. In this contribution, photoinduced curing of (meth)acrylates is used to build the desired 3D structure, whereas the thermally triggered polymerization reaction of 2H-chromene functionalized building blocks is utilized to create the IPN. This strategy combines the advantages of traditional UV-curable monomers with high-performance thermosets. After the successful synthesis of the bispropargyl ether derivative, i.e., 4,4′-(propane-2,2-diyl)bis((ethynyloxy)benzene), its thermally induced conversion to the corresponding 2H chromene functionalized prepolymer is studied by Fourier-transform infrared spectroscopy and gel permeation chromatography. The network formation as well as the printability of various formulations containing different amounts of the thermo-curable building block is investigated. The obtained IPNs provide enhanced thermo-mechanical properties making these resins suitable for the additive manufacturing of functional 3D parts for high-performance applications.
KW - bispropargyl ether
KW - dual cure
KW - photochemistry
UR - http://www.scopus.com/inward/record.url?scp=85139612631&partnerID=8YFLogxK
U2 - 10.1002/adem.202200901
DO - 10.1002/adem.202200901
M3 - Article
AN - SCOPUS:85139612631
VL - 2022
JO - Advanced engineering materials
JF - Advanced engineering materials
SN - 1527-2648
M1 - 2200901
ER -
