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Ultra-low Dielectric Fluoride-containing Cyanate Ester Resins Combining with Prominent Mechanical Properties and Excellent Thermal & Dimension Stabilities

Abstract

In this contribution, we presented a new strategy for the fabrication of modified cyanate ester resins combined with ultra-low dielectric properties, improved mechanical properties and high thermal & dimension stabilities. Fluoride-containing compound of 2-((3-trifluoromethyl)phenoxy)methyl oxirane (TFMPMO), synthesized from m-(trifluoromethyl)phenol (TFMP) and epichlorohydrin (ECH), was used to modify bisphenol A dicyanate ester (BADCy) resins via copolymerization reaction. The BADCy resin modified with 15 wt% TFMPMO presented ultra-low dielectric constant (ε, 2.75) and dielectric loss tangent value (tanδ, 6.7×10-3), high mechanical properties (impact strength of 15.4 kJ/m2 and flexural strength of 141.0 MPa), and superior thermal & dimension stability (THeat-resistance index of 206 oC and coefficient of thermal expansion of 6.4×10-5), which possessed great potential application in radomes and antenna system of aircrafts.

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Publication details

The article was received on 14 Jan 2017, accepted on 10 May 2017 and first published on 12 May 2017


Article type: Paper
DOI: 10.1039/C7TC00222J
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Ultra-low Dielectric Fluoride-containing Cyanate Ester Resins Combining with Prominent Mechanical Properties and Excellent Thermal & Dimension Stabilities

    J. Gu, W. Dong, Y. Tang, Y. Guo, L. Tang, J. Kong, S. Tadakamalla, B. Wang and Z. Guo, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC00222J

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