Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer

Quan Sun; Zi-Wei Yuan; Wen-Jie Fan; Meng-Lu Li; Wen-Xin Fu

doi:10.1007/s10118-023-2955-x

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Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer

RESEARCH ARTICLE | Updated：2023-11-10

- Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer
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- Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer
- 高分子科学（英文版） 2023年41卷第11期页码：1760-1766
- Affiliations：
  
  a.Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  b.School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  c.Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
- Author bio：
  
  fuwenxin@iccas.ac.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (No. 22075298) and the Beijing Municipal Natural Science Foundation (No. 2212053).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-023-2955-x.
- DOI：10.1007/s10118-023-2955-x
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Sun, Q.; Yuan, Z. W.; Fan, W. J.; Li, M. L.; Fu, W. X. Low dielectric benzocyclobutene-type polymers based on facile synthesis of linear fluorinated monomer. Chinese J. Polym. Sci. 2023, 41, 1760–1766

Quan Sun, Zi-Wei Yuan, Wen-Jie Fan, et al. Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer[J]. Chinese Journal of Polymer Science, 2023,41(11):1760-1766.
Sun, Q.; Yuan, Z. W.; Fan, W. J.; Li, M. L.; Fu, W. X. Low dielectric benzocyclobutene-type polymers based on facile synthesis of linear fluorinated monomer. Chinese J. Polym. Sci. 2023, 41, 1760–1766 DOI： 10.1007/s10118-023-2955-x.

Quan Sun, Zi-Wei Yuan, Wen-Jie Fan, et al. Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer[J]. Chinese Journal of Polymer Science, 2023,41(11):1760-1766. DOI： 10.1007/s10118-023-2955-x.

摘要

A series of benzocyclobutene (BCB)-based polymeric low-dielectric (low-k) materials were synthesized based on a novel linear fluorinated BCB-type monomer (4F-bis-BCB) with simple and efficient one-step preparation method, exhibiting excellent low dielectric and tunable mechanical properties, as well as great potential for next-generation advanced packaging applications.

Abstract

A linear fluorinated benzocyclobutene-type monomer (4F-bis-BCB) was facilely synthesized by a one-step copper-catalyzed etherification reaction and a simple precipitation post-purification method. Moreover, a series of BCB-based polymeric low-dielectric (low-,k,) materials were obtained by the thermal-induced ring-opening copolymerization of 4F-bis-BCB with divinyl tetramethyl disiloxane-bisbenzocyclobutene (DVS-BCB) monomer and further simple thermal curing at high temperature (200–300 °C). The resultant fully cured materials demonstrated excellent low dielectric properties at high frequency of 10 GHz (dielectric constant (,D,k,),<,2.6, dielectric loss (,D,f,),<,1.57×10,−2,), great hydrophobicity (water contact angle ,>,116°), ultra-low water absorption (,<,0.19% after soaked in water at room temperature for 60 h) and excellent planarization ability (surface roughness,<,0.56 nm of 3 μm-thick film). Overall, this new fluorinated BCB-type monomer provides us an alternative for the facile preparation of low- ,k, polymeric materials and exhibits great potential for future applications in high-frequency communication and three-dimensional high-density packaging technologies.

关键词

Keywords

Fluorinated monomerBenzocyclobutene-based polymerLow dielectric materialAdvanced packaging

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