With more than 20 years experience in research, chemical development and IP strategies, we aim at pushing the frontier of radiation curing to new limits.
We have developed a novel photolatent base with outstanding handling properties.
3D model of the photolatent base SCD-PLB 090
We have shown that this new photocatalyst can be used to perform reactions beyond simple crosslinking of a formulations, such as the concomitant production of nanoparticles in the resin matrix[1] [2]
FESM on fracture surface of the UV-cured samples in the presence of 30 wt% tetraethoxy silane (TEOS) with APTMS (3-acryloxypropyl)-trimethoxy silane.
Copyright: Polymer (Elsevier).
or the reduction of graphene oxide to graphene evenly distributed in the polymer, resulting in conductive coatings.[3]
Schematic representation of base-catalyzed resin crosslinking with concomitant reduction of graphene oxide to graphene.
Copyright: Polymer.(Elsevier).
In the development of a novel class of vitrimers, the latent catalyst can be first used as a thermal catalyst for the polycondensation of the vitrimer network. In a next reaction step, image-wise irradiation liberates the strong base that is capable of catalyzing the spatially resolved photoactivation of dynamic transesterification reaction ing in vitrimeric polymers.[4]
Topological rearrangement of a covalently crosslinked network by dynamic transesterification
Copyright: Polymer Chemistry, (Royal Society of Chemistry).
Further, based on our expertise, we offer consulting and support for third party companies in developing their own photoinitiators and photocatalysts as well as applications based on these compounds.
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References
[1] A. Gigot, M. Sangermano, L. C. Capozzi, K. Dietliker, Polymer 2015, 68, 195-201.
[2] M. Sangermano, A. Vitale, K. Dietliker, Polymer 2014, 55, 1628-1635.
[3] A. Gigot, A. Morra, M. Castellino, C. F. Pirri, V. Mittal, K. Dietliker, M. Sangermano, Polymer 2017, 108, 251-256.
[4] D. Reisinger, K. Dietliker, M. Sangermano, S. Schlögl, Polymer Chemistry 2022, 13, 1169-1176.
[5] Testimony: Lumoset Inc, Irvine CA 92614 USA