Composition of Organic-Inorganic Hybrid Photopolymer with Reduced Volume Shrinkage and Enhanced Diffraction Efficiency

摘要

The present invention is a polymeric matrix polymethyl methacrylate copolymer with acrylamide in photopolymerizable monomer, a hydrophilic of inorganic silica nanoparticles, initiator, and sensitive to organic-inorganic hybrid type photopolymer is used to prepare a mixture of the. More particularly, to a non-linear refractive index modulation induced by the polarization change rate (polarizability) to induce hydrogen bonding (hydrogen bonding) between the hydroxyl group and the photopolymer composition of the nanoparticle surface by dispersing a small amount of a hydrophilic silica nanoparticles in the polymer a high diffraction efficiency and the invention relates to organic-inorganic hybrid type photopolymer composition having a low volume shrinkage. ; photopolymer of the invention is a non-linear refractive index change due to the polarizability of the interface does not cause light scattering loss by a modulation having a high diffraction efficiency to provide a new photopolymer to be suppressed without reducing the volume shrinkage of the recording speed. ; photopolymer inorganic hybrid produced by the present invention has excellent phase stability, the diffraction efficiency and low volume shrinkage, the application of a high-capacity optical information storage medium is possible.