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Plastic Scintillators via Rapid Photoinitiated Cationic Polymerization of Vinyltoluene AITranslate

Caleb Chandler; Dominique H. Porcincula; Michael J. Ford; Connor Hook; Xianyi Zhang; Jason Brodsky; Alan Sellinger
Colorado School of Mines, Department of Chemistry;Lawrence Livermore National Laboratory;Lawrence Livermore National Laboratory;Colorado School of Mines, Department of Chemistry;Lawrence Livermore National Laboratory;Lawrence Livermore National Laboratory;Colorado School of Mines, Department of Chemistry
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Publisher: ACS
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Abstract AITranslate

Cationic photopolymerization is applied for the rapid curing of a vinyltoluene and fluorophore solution into an efficient plastic scintillator. A hard solid is obtained via UV light-initiated polymerization of vinyltoluene, diaryliodonium salt, 9,9-dimethyl-2-phenylfluorene (PhF), and 9,9-dimethyl-2,7-distyrlfluorene (SFS) at ambient conditions with high conversion rates under a range of cationic photoinitiator concentrations, fluorophore concentrations, and light intensities. Insight into photopolymerization kinetics via photo differential scanning calorimetry (photoDSC) revealed photocuring time scales similar to those achieved in a commercial 3D printing resin. Scintillator samples prepared cationically performed well compared to samples of equivalent compositions prepared by a lengthy thermally initiated radical polymerization.

KeyWords AITranslate

plastic scintillator photopolymerization cationic polymerization fluorescence radiation detection
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Basic Information:

DOI：https://doi.org/10.1021/acsapm.2c00316

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Citation Information:

Cationic photopolymerization is applied for the rapid curing of a vinyltoluene and fluorophore solution into an efficient plastic scintillator. A hard solid is obtained via UV light-initiated polymerization of vinyltoluene, diaryliodonium salt, 9,9-dimethyl-2-phenylfluorene (PhF), and 9,9-dimethyl-2,7-distyrlfluorene (SFS) at ambient conditions with high conversion rates under a range of cationic photoinitiator concentrations, fluorophore concentrations, and light intensities. Insight into photopolymerization kinetics via photo differential scanning calorimetry (photoDSC) revealed photocuring time scales similar to those achieved in a commercial 3D printing resin. Scintillator samples prepared cationically performed well compared to samples of equivalent compositions prepared by a lengthy thermally initiated radical polymerization.

quote

GB/T 7714-2015 [1] Caleb Chandler, Dominique H. Porcincula, Michael J. Ford, et al. ACS Applied Polymer Materials, 2022(4). DOI:10.1021/acsapm.2c00316.
MLA [1] Caleb Chandler, et al., ACS Applied Polymer Materials, no. 4, 2022, https://doi.org/10.1021/acsapm.2c00316.
APA [1] Caleb Chandler, Dominique H. Porcincula, Michael J. Ford, Connor Hook, Xianyi Zhang, Jason Brodsky, & Alan Sellinger. (2022). ACS Applied Polymer Materials(4). https://doi.org/10.1021/acsapm.2c00316
IEEE [1] Caleb Chandler, Dominique H. Porcincula, Michael J. Ford, Connor Hook, Xianyi Zhang, Jason Brodsky, and Alan Sellinger, ACS Applied Polymer Materials, no. 4, 2022, doi: 10.1021/acsapm.2c00316. keywords: {plastic scintillator;photopolymerization;cationic polymerization;fluorescence;radiation detection}