Flowable polysilsesquioxanes as robust solvent-free optical hard coatings

Min Hyuk Choi, Jin Young Seo, Jungbin Ahn, Han Young Woo, Sangho Cho, Seung Sang Hwang, Albert S. Lee, Kyung Youl Baek

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    Pourable and room temperature flowable ladder-structured polysilsesquioxanes were synthesized and applied as functional optical hard coatings. Organic functional group type (propyl, hexyl, octyl, dodecyl) and their copolymer composition with UV-curable methylacryloxypropyl group were selected as to control both pre-cured viscosity and final mechanical properties independent of molecular weight. Ladder-structured polysilsesquioxanes with longer alkyl side chains exhibited higher fluidity and flexibility while maintaining its optical property and mechanical strength. The solvent-free processability of our synthesized materials along with their superior optical and mechanical properties over commercial solvent-based hard coatings suggest the high value of our hybrid materials for the coatings industry.

    Original languageEnglish
    Article number105030
    JournalReactive and Functional Polymers
    Volume167
    DOIs
    Publication statusPublished - 2021 Oct

    Bibliographical note

    Funding Information:
    This work was supported by National Research foundation of Korea ( NRF-2020M3H4A3106403 ) and partially supported by the Korea Institute of Science and Technology (KIST) the Future R&D program.

    Publisher Copyright:
    © 2021 Elsevier B.V.

    Keywords

    • Hard coating
    • Ladder-like poly(silsesquioxane)
    • Solvent-free processing

    ASJC Scopus subject areas

    • General Chemistry
    • Environmental Chemistry
    • Biochemistry
    • General Chemical Engineering
    • Polymers and Plastics
    • Materials Chemistry

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