Fluorinated polyimide/POSS hybrid polymers with high solubility and low dielectric constant |
| |
Authors: | Chen-yi Wang Wen-tao Chen Chang Xu Xiao-yan Zhao Jian Li |
| |
Institution: | 1. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China;State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China;2. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China |
| |
Abstract: | A series of fluorinated polyimide/POSS hybrid polymers (FPI-4-FPI-16) were prepared via a facile synthetic route using 2,2'-bis(trifluoromethyl)benzidine, 4,4'-oxydiphthalic dianhydride and monofunctional POSS as starting materials. The hybrid polymers showed excellent solubility and film formation ability. Flexible and robust hybrid films could be conveniently obtained via solution-casting. The hybrid films demonstrated low dielectric constants and high thermal stability. Their dielectric constants were in the range of 2.47–2.92 at 1 MHz measured for their capacitance, and were tunable and decreased with an increase of POSS content. Their 10% weight loss temperatures were in the range of 539-591 °C and the weight residual at 800 °C ranged from 48% to 53% in nitrogen atmosphere. These hybrid films also possessed good mechanical properties and hydrophobic characteristics. This work could provide a potential strategy for the preparation of fluorinated polyimide/POSS hybrid polymers. |
| |
Keywords: | Polyimide Hybrid polymers Solubility Dielectric properties |
本文献已被 CNKI 万方数据 SpringerLink 等数据库收录! |
|