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Preparation and properties of photocurable, high refractive, 2-naphthol epoxy-modified urethane acrylate

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Abstract

The back light unit (BLU) is a core component of liquid crystal displays (LCDs) that are used in notebook computers, mobile phones, navigation devices, flat screen TVs, and public information display (PID) devices, among many others. To enhance the optical efficiency of LCDs, optical films with a high refractive index have been used in the BLU. In particular, high refractive chemicals have been the subject of recent investigations to enhance the optical efficiency of BLUs. In this study, we efficiently synthesized photocurable, high refractive 2-naphthol epoxy-modified urethane acrylate (2-NEUA) from 2-naphthol via a three-step reaction. The refractive index of 2-NEUA was higher than that of 2-naphthol epoxy acrylate (2-NEA), presumably because it contains more integrated aromatic rings and therefore has a higher electron density than 2-NEA. Furthermore, we critically evaluated the effects of 2-NEUA on the mechanical properties of UV curable films in this article.

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Authors and Affiliations

  1. Department of Chemistry and Applied Chemistry, Hanyang University, Sa-3-Dong 1271, Ansan, Kyunggi-Do, 426-791, Korea

    Back Sun Kim, Dong Kook Kim & Hakjune Rhee

  2. Department of Bionanotechnology, Hanyang University, Sa-3-Dong 1271, Ansan, Kyunggi-Do, 426-791, Korea

    Jeong-eun Bae, Sungwan Lee & Hakjune Rhee

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  1. Back Sun Kim
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  2. Jeong-eun Bae
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  4. Dong Kook Kim
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  5. Hakjune Rhee
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Correspondence to Hakjune Rhee.

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Kim, B.S., Bae, Je., Lee, S. et al. Preparation and properties of photocurable, high refractive, 2-naphthol epoxy-modified urethane acrylate. Polym. Bull. 68, 2097–2105 (2012). https://doi.org/10.1007/s00289-011-0668-8

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  • DOI: https://doi.org/10.1007/s00289-011-0668-8

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