Plastic Scintillators via Rapid Photoinitiated Cationic Polymerization of Vinyltoluene

被引：6

作者：

Chandler, Caleb ^{[1
]}

Porcincula, Dominique H. ^{[2
]}

Ford, Michael J. ^{[2
]}

Hook, Connor ^{[1
]}

Zhang, Xianyi ^{[2
]}

Brodsky, Jason ^{[2
]}

Sellinger, Alan ^{[1
]}

机构：

[1] Colorado Sch Mines, Dept Chem, Golden, CO 80401 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

ACS APPLIED POLYMER MATERIALS | 2022年 / 4卷 / 06期

关键词：

plastic scintillator; photopolymerization; cationic polymerization; fluorescence; radiation detection; P-METHYLSTYRENE; SALTS; PHOTOPOLYMERIZATION; IODONIUM;

D O I：

10.1021/acsapm.2c00316

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：4069 / 4074

页数：6

共 27 条

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