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

Yi He Zhang; Sheng Guo Lu; Yuan Qing Li; Zhi Min Dang; John Haozhong Xin; Shao Yun Fu; Guang Tao Li; Rui Rong Guo; Lai Feng Li

doi:10.1002/adma.200401330

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

Yi He Zhang, Sheng Guo Lu, Yuan Qing Li, Zhi Min Dang, John Haozhong Xin, Shao Yun Fu, Guang Tao Li, Rui Rong Guo, Lai Feng Li

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

127 Citations (Scopus)

Abstract

The synthesis of silica tubes (ST) by self-assembly and preparation of the ST/PI composite films by mixing the ST and polyimides (PI) precursors in a solution of N,N-dimethylacetamide (DMAc) were discussed. The mixture was thermally imidized from 50 to 300°C to form ST/PI composite films. The dielectric constant of the composite was reduced from about 3.3 for pure PI to 2.9 for the 3 wt.- % ST/PI composite. Analysis shows that the low dielectric constant is ascribed to the effect of air stored in the silica tubes, pores and interfaces between the ST and the PI matrix in the composite.

Original language	English
Pages (from-to)	1056-1059
Number of pages	4
Journal	Advanced Materials
Volume	17
Issue number	8
DOIs	https://doi.org/10.1002/adma.200401330
Publication status	Published - 18 Apr 2005

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200401330

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title = "Novel silica tube/polyimide composite films with variable low dielectric constant",

abstract = "The synthesis of silica tubes (ST) by self-assembly and preparation of the ST/PI composite films by mixing the ST and polyimides (PI) precursors in a solution of N,N-dimethylacetamide (DMAc) were discussed. The mixture was thermally imidized from 50 to 300°C to form ST/PI composite films. The dielectric constant of the composite was reduced from about 3.3 for pure PI to 2.9 for the 3 wt.- % ST/PI composite. Analysis shows that the low dielectric constant is ascribed to the effect of air stored in the silica tubes, pores and interfaces between the ST and the PI matrix in the composite.",

author = "Zhang, {Yi He} and Lu, {Sheng Guo} and Li, {Yuan Qing} and Dang, {Zhi Min} and Xin, {John Haozhong} and Fu, {Shao Yun} and Li, {Guang Tao} and Guo, {Rui Rong} and Li, {Lai Feng}",

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T1 - Novel silica tube/polyimide composite films with variable low dielectric constant

AU - Zhang, Yi He

AU - Lu, Sheng Guo

AU - Li, Yuan Qing

AU - Dang, Zhi Min

AU - Xin, John Haozhong

AU - Fu, Shao Yun

AU - Li, Guang Tao

AU - Guo, Rui Rong

AU - Li, Lai Feng

PY - 2005/4/18

Y1 - 2005/4/18

N2 - The synthesis of silica tubes (ST) by self-assembly and preparation of the ST/PI composite films by mixing the ST and polyimides (PI) precursors in a solution of N,N-dimethylacetamide (DMAc) were discussed. The mixture was thermally imidized from 50 to 300°C to form ST/PI composite films. The dielectric constant of the composite was reduced from about 3.3 for pure PI to 2.9 for the 3 wt.- % ST/PI composite. Analysis shows that the low dielectric constant is ascribed to the effect of air stored in the silica tubes, pores and interfaces between the ST and the PI matrix in the composite.

AB - The synthesis of silica tubes (ST) by self-assembly and preparation of the ST/PI composite films by mixing the ST and polyimides (PI) precursors in a solution of N,N-dimethylacetamide (DMAc) were discussed. The mixture was thermally imidized from 50 to 300°C to form ST/PI composite films. The dielectric constant of the composite was reduced from about 3.3 for pure PI to 2.9 for the 3 wt.- % ST/PI composite. Analysis shows that the low dielectric constant is ascribed to the effect of air stored in the silica tubes, pores and interfaces between the ST and the PI matrix in the composite.

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U2 - 10.1002/adma.200401330

DO - 10.1002/adma.200401330

M3 - Journal article

SN - 0935-9648

VL - 17

SP - 1056

EP - 1059

JO - Advanced Materials

JF - Advanced Materials

IS - 8

ER -

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

Abstract

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