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Data · dataset · 2025

Research data for "Trioxanes as photodegradable motifs for additive manufacturing"

Listed in TU Wien Research Data

Context and methodology This dataset was collected during a research project on photopolymers for 3D printing within the framework of a PhD thesis at the Institute of Applied Technology, TU Wien.

Description

It entails the synthesis of monomers and thereof derived polymer network containing trioxanes as degradable motif via (photo)acid, and full characterization thereof. Production of the network via 3D printing and its degradation are phototriggered, semi-orthogonal processes.

The data is further discussed in the publication cited below. Technical details The dataset entails the raw data of various analyses collected in an Excel file "Data trioxane paper" : Each tab in the file has the following structure: Line 1: Analysis method Line 2: Parameters tracked by the analysis method Line 3: Units of these parameters Line 4: Compound analyzed Tab 1: "Figure 1": Absorption data of photoinitiators TPO-L and PAG Tab 2: "Figure 2": Nuclear magnetic resonance (NMR) data of trioxane degradation compared to model compounds Tab 3: "Figure 3": Photo-dynamic scanning calorimetry (Photo-DSC) and photorheology data (irradiation with LED light source) of N-PAG and L-PAG Tab 4: "Figure 4": Dynamic scanning calorimetry (DSC) of N-PAG, L-PAG, A-PAG, reference aldehyde and trioxane and NMR data of molten A-PAG sample compared toreference aldehyde.

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Tab 5: "Figure 5": Tensile testing and dynamic mechanical analysis (DMTA) data of N-PAG and L-PAG Tab 6: "Figure S1": NMR data of trioxane Tab 7: "Figure S2": NMR data of reference aldehyde Tab 8: "Figure S3": Photorheology data (irradiation with LED light source) of N-PAG and L-PAG Tab 9: "Figure S4": ATR-IR data of trioxane and 10-undecanal Tab 10: "Figure S5": DMTA and ATR-IR data of L-PAG formulation (uncured), L-PAG material (cured in Lumamat), A-PAG material directly after UV irradiation (after Uvitron) or after UV irradiation and subsequent DMTA measurement (after DMTA, polymeric/liquid part) Tab 11: "Figure S6": ATR-IR data of aged (110 days) L-PAG material compared to fresh and aged A-PAG and reference aldehyde The compound abbreviations/descriptions in the Excel file are described in the following: Small molecules: TPO-L: Ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate (radical photoinitiator) PAG: photoacid generator UVI6976 (mixture of triarylsulfonium hexafluoroantimonate salts in propylene carbonate) trioxane : trioxane-containing triene utilized as crosslinker ( 1,3,5-trioxane-2,4,6-tris(9-decenyl) ) trixoane+PAG : trioxane-containing triene utilized as crosslinker mixed with PAG, not irradiated trioxane+PAG+UV: trioxane-containing triene utilized as crosslinker mixed with PAG, irradiated with ultraviolet (UV) light (Uvitron International INTELLIRAY 600 UV-oven; 320-500 nm Hg broadband UV lamp; 600 W; UV-A: 125 mW cm-2; vis: 125 mW cm-2, 300 s on both sides at 100% intensity) 10-undecanal: reference compound for the small molecule degradation study reference aldehyde : model compound for trioxane degradation product for the material degradation study CHTT : trithiol comonomer ( 1,2,4-cyclohexanetriethanethiol) Materials: All materials consist of a thiol-ene network consisting of equimolar amounts of trioxane and CHTT photopolymerized by TPO-L (1 wt%) and BHT (0.2 wt%).

Inclusion of the PAG UVI6976 (1 wt%) in the network and its irradiation condition is indicated in the following material abbreviations: N-PAG = No PAG : PAG was not added to the formulation/material L-PAG = inactive PAG : Formulation/material contains PAG but was not UV irradiated with the UV-oven A-PAG : Material contains PAG, which was activated by UV irradiation in the UV-oven as described above NMR data included in the Excel file has additionally been added as raw data files (Bruker) in the folder "NMR data" , which can be opened with community-standard programmes (e.g. MestRe Nova, TopSpin).

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Chemical sciences
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Chemistry
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