Novel silica tube/polyimide composite films with variable low dielectric constant

被引：127

作者：

Zhang, YH ^{[1
]}

Lu, SG

Li, YQ

Dang, ZM

Xin, JH

Fu, SY

Li, GT

Guo, RR

Li, LF

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Hong Kong, Peoples R China

[4] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

[5] Beijing Univ Chem Technol, Minist Educ, Key Lab Nanomat, Beijing 100029, Peoples R China

[6] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

ADVANCED MATERIALS | 2005年 / 17卷 / 08期

关键词：

D O I：

10.1002/adma.200401330

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel silica tube/polyimide (ST/PI) composite films prepared via ultrasonic dispersion and in-situ polymerization using STs (see Figure) from self-assembly and a PI precursor with N,N-dimethylacetamide as a solvent are reported. Dielectric constants significantly lower than that of the matrix are obtained. Effective medium theory was used to calculate the dielectric constant of the constituents. The air imported by the STs plays a crucial role in reducing the dielectric constant of the composite.

引用

页码：1056 / +

页数：5

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