Fluororesin and preparation method thereof, holographic recording medium and holographic optical element
By using hydroxyl-terminated fluororesin in photopolymers and introducing fluorine elements through RAFT polymerization technology, the problem of insufficient refractive index difference between the existing photopolymer film-forming resin and the writing monomer is solved, and the holographic recording performance and material resistance are significantly improved.
Patent Information
- Application Number
- CN202411711853.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-04-01
AI Technical Summary
The difference in refractive index between the existing photopolymer film-forming resin and the writing monomer is insufficient, resulting in poor holographic recording performance of photopolymers, and the high temperature, low temperature, oil and chemical media resistance of the material also needs to be improved.
A hydroxyl-terminated fluororesin is used as a component of the film forming resin and is prepared by fragmentation and addition radical polymerization (RAFT) technology. The fluorine element is introduced to reduce the refractive index of the film forming resin and increase the refractive index difference with the writing monomer.
It significantly improves the holographic recording performance of photopolymers, enhances the photosensitive sensitivity and diffraction efficiency, and improves the material's high temperature resistance, low temperature resistance, oil resistance and chemical media resistance.