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Impact of NVP Doping on the Holographic Properties of PQ/PMMA Holographic Storage Materials

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Publicado en:Polymers vol. 17, no. 17 (2025), p. 2321-2338
Autor principal: Lin, Peng
Otros Autores: Wu, Junhui, Zheng Shujun, Liu, Hongjie, Xiong Ruying, Chen, Xueyan, Xu, Zheng, Lin, Xiao, Tan, Xiaodi
Publicado:
MDPI AG
Materias:
Shanghai China
China
Polymers
Photosensitivity
Doping
Photopolymers
Holography
Aging
Photopolymerization
Polymerization
Optical properties
Polymethyl methacrylate
Molecular structure
High temperature
Aging (materials)
Diffraction efficiency
Cost effectiveness
Efficiency
Diffraction
Business metrics
Acceso en línea:Citation/Abstract
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Resumen:Photopolymer PQ/PMMA, as a pivotal material in the field of holographic storage, demonstrates significant application potential owing to its advantages, such as straightforward preparation processes, cost-effectiveness, and tunable thickness. However, its practical application is still constrained by the need for further enhancement in key performance indicators, including diffraction efficiency, photosensitivity, and anti-aging properties. In this study, N-vinylpyrrolidone (NVP) is employed as a comonomer. By precisely controlling the doping ratio, we systematically investigate the influence mechanism of different NVP doping concentrations on the holographic performance of NVP-PQ/PMMA materials. Research indicates that the introduction of NVP effectively increases the vinyl concentration in the PQ/PMMA matrix, thereby directly generating photoproducts with PQ during the photoreaction process and further enhancing the photopolymerization process. Consequently, the holographic performance of the novel NVP-PQ/PMMA material is improved in a multi-faceted manner compared to ordinary PQ/PMMA. Specifically, the diffraction efficiency is enhanced by 1.93 times, the photosensitivity is increased by 1.64 times, the material uniformity is improved by 38%, and the light-induced shrinkage rate is reduced by 39%. Additionally, NVP-PQ/PMMA materials exhibit excellent stability and aging resistance in high-temperature accelerated aging experiments. Doping with a monomer of specific structure enhances the optical properties, providing broad adaptability for further research on PQ/PMMA photopolymer materials.
ISSN:2073-4360
DOI:10.3390/polym17172321
Fuente:Materials Science Database