Provided is a photosensitive composition for volume hologram recording layer formation. The photosensitive composition gives a volume hologram recording layer that has excellent moisture resistance and thermal stability, less undergoes cure shrinkage upon hologram recording, and offers excellent multiple recording properties.
The photosensitive composition for volume hologram recording layer formation includes components (A), (B), (C), (D), and (E). Component (A) is at least one cationically polymerizable compound including a compound represented by Formula (1). Component (B) is a compound containing an active-proton-containing functional group. Component (C) is a thermal acid generator. Component (D) is a radically polymerizable compound. Component (E) is a radical-polymerization initiator. Components (A), (B), and (C) constitute a precursor material for three-dimensional cross-linked polymer matrix. Components (A), (B), and (C) are present in the precursor material for three-dimensional cross-linked polymer matrix in such proportions that the molar ratio of the active-proton-containing functional group of Component (B) to cycloaliphatic epoxy groups of the compound represented by Formula (1) in Component (A) is from 0.01 to 0.3. Formula (1) is expressed as follows:
本发明提供了一种用于形成全息图记录层的感光组合物。该感光组合物提供的体积全息图记录层具有优异的防潮性和热稳定性,在全息图记录时不易发生固化收缩,并具有优异的多重记录特性。
用于形成体积全息图记录层的光敏组合物包括组分(A)、(B)、(C)、(D)和(E)。组分(A)是至少一种阳离子可聚合化合物,包括由式(1)表示的化合物。组分(B)是含有活性质子官能团的化合物。组分(C)是热酸发生器。组分(D)是可自由基聚合的化合物。组分(E)是一种自由基聚合
引发剂。组分(A)、(B)和(C)构成三维交联聚合物基体的前体材料。组分(A)、(B)和(C)以这样的比例存在于三维交联聚合物基体的前体材料中,即组分(B)的含活性质子官能团与组分(A)中式(1)所代表化合物的环脂族环氧基团的摩尔比为 0.01 至 0.3。式(1)表示如下