Intrinsic low-dielectric-constant polyimides based on a novel diamine having -CF3 groups and kinkable 1,4-diisopropylbenzene units

被引：4

作者：

Nagella, Sivagangi Reddy ^{[2
]}

Park, Sung Soo ^{[3
]}

Chitumalla, Ramesh Kumar ^{[4
]}

Jang, Joonkyung ^{[4
]}

Ha, Chang-Sik ^{[1
,2
]}

机构：

[1] Pusan Natl Univ, Sch Chem Engn, Busan 46241, South Korea

[2] Pusan Natl Univ, Sch Chem Engn, Dept Polymer Sci & Engn, Busan, South Korea

[3] Dong Eui Univ, Div Adv Mat Engn, Busan, South Korea

[4] Pusan Natl Univ, Dept Nanoenergy Engn, Busan, South Korea

来源：

POLYMER INTERNATIONAL | 2024年 / 73卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

polyimides; 1,4-diisopropylbenzene; low D-k; low D-f; 5G/6G communications; HIGH-PERFORMANCE POLYIMIDES; AROMATIC POLYIMIDES; SOLUBLE POLYIMIDES; MOLECULAR DESIGN; TRANSPARENT; FILMS;

D O I：

10.1002/pi.6588

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyimides (PIs) with low dielectric constants and optical transparency are of great interest in 5G/6G communication applications and in the microelectronics industry, where they are used as interlayer dielectric materials, wearable display devices and so forth. In this study, we designed and synthesized a novel fluorinated diamine called 4,4 '-(1,4-phenylenebis(propane-2,2-diyl))diphenoxybis(2-(trifluoromethyl)-4-aminobenzene) (BPBTAB) monomer from bisphenol-P having diisopropyl benzene units and fabricated four novel BPBTAB-X PIs. These PI films possess excellent properties such as a low dielectric constant (1.13-1.84 at 1 MHz), high 5% loss temperature (395-491 degrees C), moderate glass transition temperature (223-254 degrees C), good tensile modulus (0.827-1.076 GPa), excellent optical properties (T-450 up to 83.37%), low moisture absorption (<0.63%) and good solubility in organic solvents. Hence, the as-synthesized PI films exhibit excellent comprehensive properties for high-frequency 5G/6G communication applications. (c) 2023 Society of Chemical Industry.

引用

页码：238 / 247

页数：10