Journal
POLYMER
Volume 227, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2021.123847
Keywords
High refractive index polymer; Optical polymer; Zirconium acrylate
Categories
Funding
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20183010025470]
- Korea Evaluation Institute of Industrial Technology (KEIT)
- Ministry of Trade, Industry & Energy(MOTIE) of the Republic of Korea [20011577, 20011153]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20011577, 20183010025470, 20011153] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Highly refractive polymers synthesized using novel photo-curable pyrimidine-based acrylate monomers exhibit good thermal stability and high transmittance. The inclusion of ZrA nanocomposites in the polymer systems enhances refractive index, with well-dispersed particles at the nanometer level and low birefringence.
Highly refractive polymers are widely used in the optics industry. They are typically synthesized as matrices containing relatively high refractive index inorganic fillers, resulting in transparent, practical, and useful thin materials. This research introduces novel photo-curable pyrimidine-based acrylate monomers containing aromatic groups or aliphatic groups with sulfur atoms. Diphenylacrylate sulfanyl-methylthio-pyrimidine (DPASMTP) and trisphenylacrylate-sulfanyl-pyrimidine (TPASP) were designed and synthesized for optical applications. The polymers were obtained after a simple photo-polymerization, and exhibited good thermal stabilities (Td 350) and high transmittance (>85% at lambda cutoff). All of the ZrA nanocomposites (NCs) showed welldispersed particles at the nanometer level, high refractive index (>1.68 at 637 nm) and very low birefringence (<0.0135 at 637 nm). The ZrA contents were correlated with the optical properties of the photo-cured polymer systems, and were confirmed to enhance the refractive index.
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