Ultralow dielectric, fluoride-containing cyanate ester resins with improved mechanical properties and high thermal and dimensional stabilities

被引：114

作者：

Gu, Junwei ^{[1
]}

Dong, Wencai ^{[1
]}

Tang, Yusheng ^{[1
]}

Guo, Yongqiang ^{[1
]}

Tang, Lin ^{[1
]}

Kong, Jie ^{[1
]}

Tadakamalla, Sruthi ^{[2
]}

Wang, Bin ^{[3
]}

Guo, Zhanhu ^{[2
]}

机构：

[1] Northwestern Polytech Univ, Sch Sci, Dept Appl Chem, Key Lab Space Appl Phys & Chem,Minist Educ, Xian 710072, Peoples R China

[2] Univ Tennessee, Dept Chem & Biomol Engn, ICL, Knoxville, TN 37996 USA

[3] Engn Multifunct Composites EMC Nanotech LLC, Knoxville, TN 37934 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2017年 / 5卷 / 28期

基金：

中国国家自然科学基金;

关键词：

CROSS-LINKED NETWORK; WAVE-TRANSPARENT; COMPOSITES; POLYMER; NANOCOMPOSITES; POLYSILOXANE; PERFORMANCE; HYBRIDS; BEHAVIOR; CELLS;

D O I：

10.1039/c7tc00222j

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this contribution, we present a new strategy for the fabrication of modified cyanate ester resins combined with ultralow dielectric properties, improved mechanical properties and high thermal and dimensional stabilities. The fluoride-containing compound 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 ultralow dielectric constant (epsilon, 2.75) and dielectric loss tangent values (tan delta, 6.7 x 10(-3)), high mechanical properties (impact strength of 15.4 kJ m(-2) and flexural strength of 141.0 MPa), and superior thermal and dimensional stability (THeat-resistance (index) of 206 degrees C and coefficient of thermal expansion of 6.4 x 10(-5)), and it possesses great potential application in radomes and antenna systems of aircraft.

引用

页码：6929 / 6936

页数：8

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