Funct. Mater. 2015; 22 (2): 280-285.
Radiation-hard plastic scintillator with increased mechanical strength
Institute for Scintillating Materials, STC "Institute for Single Crystals",National Academy of Sciences of Ukraine, 60 Lenin Ave., 61001 Kharkiv, Ukraine
This paper describes possibilities of improving mechanical properties of radiation-hard plastic scintillator (PS) with additives by spatial cross-linking their polymer base. This allows improving the mechanical properties of the PS preserving their light yield and transparency. The cross-linked structure is formed in the PS matrix by copolymerization of the main monomer and cross-linking monomer which contains two active vinyl groups. 4,4'-Bis-(methylene-2-metacrylate)-biphenyl (BPBMA) was used as the cross-linking agent and derivatives of biphenyl and naphthalene as diffuse enhancers. Inserting the cross-linking agent and diffuse enhancers facilitate the increase of the PS mechanical strength retaining its functional properties.
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