New polymers derived from 4-vinylsilylbenzocyclobutene monomer with good thermal stability, excellent film-forming property, and low-dielectric constant

Authors

  • Junxiao Yang,

    Corresponding author
    1. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
    2. State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China
    • School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
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  • Shangchun Liu,

    1. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
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  • Fanghua Zhu,

    1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
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  • Yawen Huang,

    Corresponding author
    1. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
    2. State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China
    • School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
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  • Bo Li,

    1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
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  • Lin Zhang

    1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
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Abstract

A series of benzocyclobutene (BCB) polymers derived from a new readily available monomer, 4-(1′,1′-dimethyl-1′-vinyl) silylbenzocyclobutene (4-DMVSBCB), were conveniently prepared by radical and anionic polymerization. The homo- and co-polymerization results show that the reactivity of 4-DMVSBCB in anionic polymerization is relatively higher compared with radical polymerization. The molecular weight of 4-DMVSBCB polymers and content of 4-DMVSBCB can be controlled by anionic copolymerization. The introduction of rigid and crosslinkable BCB building blocks in side chains and carbosilanes in molecule gives rise to insulating materials with good film-forming property, smooth and flat film surface, and low-dielectric constants of 2.41–2.45, as preserving good thermal stability. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011

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