Photosensitive composition for volume hologram recording, volume hologram recording medium using same, method for manufacturing volume hologram recording medium, and hologram recording method

A photosensitive composition for volume hologram recording, comprising:

• an alicyclic epoxy compound (A) represented by Formula (I);
• a thermal acid generator (B);
• a radically polymerizable compound (C);
• a radical polymerization initiator (D);
• and
• at least one epoxy compound (E) selected from the group consisting of:
• compounds represented by Formula (1);
• epoxidized fatty acid esters;
• and
• epoxidized conjugated diene polymers,
• Formulae (I) and (1) expressed as follows:
• wherein n represents an integer from 0 to 10;
• X represents, in each occurrence independently, one divalent group selected from the group consisting of oxygen, —CH2—, —C(CH3)2—, —CBr2—, —C(CBr3)2—, —CF2—, —C(CF3)2—, —CCl2—, —C(CCl3)2—, and —CH(C6H5)—, where, when n is 2 or more, two or more occurrences of X may be identical or different;
• and R1 to R′8 are, identically or differently, selected from a hydrogen atom, a halogen atom, a hydrocarbon group optionally containing oxygen or halogen, and optionally substituted alkoxy group;
• wherein Ra and Rb are independently selected from a monovalent linear or branched aliphatic hydrocarbon group;
• and a monovalent group corresponding to a linear or branched unsaturated aliphatic hydrocarbon group, except with part or all of carbon-carbon unsaturated bond(s) thereof being epoxidized.