Patent ID: 7781124

Claim:
A hologram recording material comprising: a polymer (A) having a radically polymerizable side chain vinyl group in the molecule thereof, said polymer (A) being a polymer of monomers comprising as an essential component an acryl-vinyl monomer represented by the following formula (1): CH 2 ═C(R 1 )C(═O)O—R 2 ═CH 2 (1) wherein R 1 represents a hydrogen atom or methyl group, and R 2 represents a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms, which may contain hetero atoms or halogen atoms in the molecule thereof; and a photopolymerization initiation source (B) which generates an active seed by visible light, wherein the recording material is a hologram recording material, and wherein the polymer (A) has a stereoregularity of 70% or more in terms of syndiotacticity (rr).