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Methacrylate-Functionalized 2,5-Diphenyloxazole for Use as Fluorescent Monomers in Plastic Scintillators AITranslate

Allison Lim; Griselda Hernandez; Joseph Latta; Henok A. Yemam; Wasana Senevirathna; Uwe Greife; Alan Sellinger;
Materials Science Program, Colorado School of Mines;Materials Science Program, Colorado School of Mines;Nuclear Science and Engineering Program and Department of Physics, Colorado School of Mines;Department of Chemistry, Colorado School of Mines;Department of Chemistry, Colorado School of Mines;Nuclear Science and Engineering Program and Department of Physics, Colorado School of Mines;Materials Science Program and Department of Chemistry, Colorado School of Mines
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Publisher: ACS
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Abstract AITranslate

Interest in plastic scintillators for the detection of special nuclear materials (SNMs) has increased in recent years due to the development of systems capable of distinguishing between neutron and γ radiation. For example, poly(vinyltoluene) (PVT)-based scintillators overdoped with the fluorescent small molecule 2,5-diphenyloxazole (PPO) distinguish the two types of radiation via pulse shape discrimination (PSD). However, PPO overdoping leads to softening of the plastic and dopant aggregation, causing major issues with detection efficiency, lifetime, and scalability. To improve the plastic scintillator properties while retaining efficient PSD performance, methacrylate-based derivatives of PPO were synthesized for copolymerization with vinyltoluene. The use of polymerizable dopants results in PSD capable plastic scintillators with increased mechanical and thermal stability while eliminating dopant aggregation and leaching.

KeyWords AITranslate

plastic scintillator copolymerization radiation detection radical bulk polymerization fluorescent monomer
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Basic Information:

DOI：https://doi.org/10.1021/acsapm.9b00188

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Citation Information:

Interest in plastic scintillators for the detection of special nuclear materials (SNMs) has increased in recent years due to the development of systems capable of distinguishing between neutron and γ radiation. For example, poly(vinyltoluene) (PVT)-based scintillators overdoped with the fluorescent small molecule 2,5-diphenyloxazole (PPO) distinguish the two types of radiation via pulse shape discrimination (PSD). However, PPO overdoping leads to softening of the plastic and dopant aggregation, causing major issues with detection efficiency, lifetime, and scalability. To improve the plastic scintillator properties while retaining efficient PSD performance, methacrylate-based derivatives of PPO were synthesized for copolymerization with vinyltoluene. The use of polymerizable dopants results in PSD capable plastic scintillators with increased mechanical and thermal stability while eliminating dopant aggregation and leaching.

quote

GB/T 7714-2015 [1] Allison Lim, Griselda Hernandez, Joseph Latta, et al. ACS Applied Polymer Materials, 2019(1). DOI:10.1021/acsapm.9b00188.
MLA [1] Allison Lim, et al., ACS Applied Polymer Materials, no. 1, 2019, https://doi.org/10.1021/acsapm.9b00188.
APA [1] Allison Lim, Griselda Hernandez, Joseph Latta, Henok A. Yemam, Wasana Senevirathna, Uwe Greife, & Alan Sellinger. (2019). ACS Applied Polymer Materials(1). https://doi.org/10.1021/acsapm.9b00188
IEEE [1] Allison Lim, Griselda Hernandez, Joseph Latta, Henok A. Yemam, Wasana Senevirathna, Uwe Greife, and Alan Sellinger, ACS Applied Polymer Materials, no. 1, 2019, doi: 10.1021/acsapm.9b00188. keywords: {plastic scintillator;copolymerization;radiation detection;radical bulk polymerization;fluorescent monomer}