Synthesis and characterization of UV-Curable pyrimidine-based Poly(Acrylate) and zirconium acrylate nanocomposite with high refractive index. (16th June 2021)

• Record Type: Journal Article
• Authors: Lee, Seung-Hyun; Kim, Doo Hun; Goh, Munju; Kim, Jeung Gon; You, Nam-Ho
• Is Part Of: Polymer. Volume 227(2021)
• Publication Date: 2021-06-16
• Subjects: High refractive index polymer -- Optical polymer -- Zirconium acrylate; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2021.123847
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: 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 λcutoff). All of the ZrA nanocomposites (NCs) showed well-dispersed 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. Graphical abstract: Image 1 Highlights: Novel photo-curable pyrimidine-based acrylate/ZrA nanocomposites were prepared by radical polymerization for optical applications. The PTPASP/ZrA NC showed colorless and good transmittance of 74.9–81.6% by homogeneously disperse of ZrA within PTPASP matrix. The PTPASP/ZrA (50 wt%) films exhibited a high refractive index of 1.7097 with low refringence values.