Issue 20, 2023

Additive manufacturing of high-performance polycyanurates via photo-induced catalytic poly-trimerization

Abstract

Polycyanurates offer outstanding thermomechanical properties due to their unique triazine structure in combination with phenolic chains. Generally, these resistant thermosets are formed into the desired shape via lengthy molding processes. With the aid of photo-induced catalytic poly-trimerization, not only the photochemical curing of cyanate esters can be described here, but also the production of pure polycyanurates by employing an additive manufacturing variant, the Hot Lithography. Other methods in the field of additive manufacturing of this class of thermosets relied on matrix polymers or fillers for less precise printing variants. The presented reaction process could be monitored via photo-DSC and IR, and the thermomechanical properties could be analyzed by simultaneous thermal analysis and dynamic mechanical analysis. The presented formulation is stable under the selected conditions for 3D printing at elevated temperatures, showing sufficient reactivity. The thermomechanical values obtained for the 3D printed structures are in regions that have rarely been attainable for additive manufacturing using laser-induced curing. Together with the commonly used high chemical resistance, this proof-of-concept process offers an extraordinary opportunity for the production of high-performance polymers for additive manufacturing.

Graphical abstract: Additive manufacturing of high-performance polycyanurates via photo-induced catalytic poly-trimerization

  • This article is part of the themed collection: #MyFirstJMCA

Supplementary files

Article information

Article type
Communication
Submitted
01 Marts 2023
Accepted
28 Apr. 2023
First published
02 Maijs 2023
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2023,11, 10545-10550

Additive manufacturing of high-performance polycyanurates via photo-induced catalytic poly-trimerization

R. Wolff, P. Knaack, K. Seidler, C. Gorsche, T. Koch, J. Stampfl and R. Liska, J. Mater. Chem. A, 2023, 11, 10545 DOI: 10.1039/D3TA01264F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements