| abstract |
The present invention is a polymer matrix or a precursor thereof containing a reactant between a hydrogen-bonding functional group capable of multiple hydrogen bonding, a reactive isocyanate compound having one or more isocyanate groups, and a polyol having two or more hydroxy groups; A photopolymer composition containing a photoreactive monomer; and a photoinitiator; a hologram recording medium produced from the photopolymer composition, an optical element containing the hologram recording medium, and the photopolymer composition. Regarding the lobographic recording method used. |