Polymerization composition for producing a scintillating hybrid material and associated kits

A polymerization composition for manufacturing a hybrid material for plastic scintillation detection comprising:

• monomers, oligomers or their mixtures intended to form at least one constituent polymer of a polymeric matrix;
• a liquid fluorescent mixture comprising, in a molar concentration with respect to the total number of moles of primary fluorophore in the liquid fluorescent mixture:
• i) from 95.6 molar % to 99.1 molar % of a main primary fluorophore consisting of naphthalene;
• ii) from 0.9 molar % to 4.4 molar % of an additional primary fluorophore, the centroid of the light absorption spectrum and of the fluorescence emission spectrum of which respectively have a wavelength comprised between 250 nm and 340 nm and comprised between 330 nm and 380 nm, the fluorescence decay constant of which is comprised between 1 ns and 10 ns and the fluorescence quantum yield in a nonpolar solvent of which is comprised between 0.2 and 1;
• and
• iii) a secondary fluorophore having a light absorption spectrum and a fluorescence emission spectrum, the centroid of which is respectively at a wavelength comprised between 330 nm and 380 nm and comprised between 550 nm and 630 nm, and the fluorescence quantum yield in a nonpolar solvent of which is comprised between 0.5 and 1.

A ready-for-use kit with mixed fluorophores for the manufacture of a polymerization composition comprising, separately for the purpose of the assembling thereof, the following components of the kit:

• i) monomers, oligomers or their mixtures intended to form at least one constituent polymer of a polymeric matrix and;
• ii) a fluorescent mixture for a polymerization kit comprising, as a molar concentration with respect to the total number of moles of primary fluorophore in the fluorescent mixture for a polymerization kit:
• i′) from 95.6 molar % to 99.1 molar % of a main primary fluorophore consisting of naphthalene;
• and
• ii′) from 0.9 molar % to 4.4 molar % of an additional primary fluorophore, the centroid of the light absorption spectrum and of the fluorescence emission spectrum of which respectively have a wavelength comprised between 250 nm and 340 nm and comprised between 330 nm and 380 nm, the fluorescence decay constant of which is comprised between 1 ns and 10 ns and the fluorescence quantum yield in a nonpolar solvent of which is comprised between 0.2 and 1.

A ready-to-use kit with separate fluorophores for the manufacture of a polymerization composition for manufacturing an hybrid material for plastic scintillation detection, comprising:

• monomers, oligomers or their mixtures intended to form at least one constituent polymer of a polymeric matrix;
• a liquid fluorescent mixture comprising, in a molar concentration with respect to the total number of moles of primary fluorophore in the liquid fluorescent mixture:
• i) from 80 molar % to 99.6 molar % of a main primary fluorophore consisting of naphthalene;
• and
• ii) from 0.4 molar % to 20 molar % of an additional primary fluorophore, the centroid of the light absorption spectrum and of the fluorescence emission spectrum of which respectively have a wavelength comprised between 250 nm and 340 nm and comprised between 330 nm and 380 nm, the fluorescence decay constant of which is comprised between 1 ns and 10 ns and the fluorescence quantum yield in a nonpolar solvent of which is comprised between 0.2 and 1;
• the ready-for-use kit with separate fluorophores comprising, separately for the purpose of the assembling thereof, the following components of the kit:
• i′) a first polymerization mixture comprising monomers, oligomers or their mixtures intended to form at least one constituent polymer of the polymeric matrix;
• and, in a molar concentration with respect to the total number of moles of primary fluorophore in the kit, from 80 molar % to 99.6 molar % of a main primary fluorophore consisting of naphthalene;
• ii′) a second polymerization mixture comprising monomers, oligomers or their mixtures intended to form at least one constituent polymer of the polymeric matrix;
• and, at a molar concentration with respect to the total number of moles of primary fluorophore in the kit, from 0.4 molar % to 20 molar % of an additional primary fluorophore, the centroid of the light absorption spectrum and of the fluorescence emission spectrum of which respectively have a wavelength comprised between 250 nm and 340 nm and comprised between 330 nm and 380 nm, the fluorescence decay constant of which is comprised between 1 ns and 10 ns and the fluorescence quantum yield in a nonpolar solvent of which is comprised between 0.2 and 1.

A ready-to-use kit with polymers for the manufacture of an extrusion mixture comprising, separately for the purpose of the assembling thereof, the following components of the kit:

• i″) polymerized ingredients intended to form a polymeric matrix which comprises at least one constituent polymer formed from monomers, oligomers or their mixtures;
• ii″) a fluorescent mixture for an extrusion kit comprising, at a molar concentration with respect to the total number of moles of primary fluorophore in the fluorescent mixture for an extrusion kit:
• i) from 80 molar % to 99.6 molar % of a main primary fluorophore consisting of naphthalene;
• and
• ii) from 0.4 molar % to 20 molar % of an additional primary fluorophore, the centroid of the light absorption spectrum and of the fluorescence emission spectrum of which respectively have a wavelength comprised between 250 nm and 340 nm and comprised between 330 nm and 380 nm, the fluorescence decay constant of which is comprised between 1 ns and 10 ns, and the fluorescence quantum yield in a nonpolar solvent of which is comprised between 0.2 and 1.