Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

Citation: Jia-yu Zhan, Guo-feng Tian, Zhan-peng Wu, Sheng-li Qi, De-zhen Wu. Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior[J]. Chinese Journal of Polymer Science, 2014, 32(4): 424-431. doi: 10.1007/s10118-014-1413-1 shu

Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

1.
1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
2.
2. Beijing Building Materials Academy of Science Research/State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing 100041, China
3.
4.
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

通讯作者: De-zhen Wu,

基金项目:
This work was financially supported by the National Natural Science Foundation of China (No. 51073020).

摘要: Triphase polyimide nanocomposite films were fabricated using barium titanate (BaTiO3) with high dielectric constant and silver (Ag) with high conductivity as fillers. In situ method was utilized to obtain the homogeneous dispersion of nanoparticles. The in situ polymerization of polyimide precursor-poly(amic acid) was performed in the presence of BaTiO3 particles. Silver compound 1,1,1-trifluoro-2,4-pentadionato silver(Ⅰ) was added into the BaTiO3 containing poly(amic acid) solution to achieve silver nanoparticles via in situ self metallization technique. The thermally induced reduction converted silver (Ⅰ) to metallic silver with concomitant imidization of poly(amic acid) to polyimide. Both BaTiO3 and silver nanoparticles were uniformly dispersed in the polyimide substrate. The dependence of dielectric behavior on the BaTiO3 and Ag contents was studied. The incorporation of small amount of silver nanoparticles greatly increased dielectric constant of composite films.

关键词:

English

Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

1.
1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
2.
2. Beijing Building Materials Academy of Science Research/State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing 100041, China
3.
4.
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Corresponding author: De-zhen Wu,

Received Date: 26 June 2013
Revised Date: 01 August 2013
Available Online: 05 April 2014
Fund Project:
This work was financially supported by the National Natural Science Foundation of China (No. 51073020).

Abstract: Triphase polyimide nanocomposite films were fabricated using barium titanate (BaTiO3) with high dielectric constant and silver (Ag) with high conductivity as fillers. In situ method was utilized to obtain the homogeneous dispersion of nanoparticles. The in situ polymerization of polyimide precursor-poly(amic acid) was performed in the presence of BaTiO3 particles. Silver compound 1,1,1-trifluoro-2,4-pentadionato silver(Ⅰ) was added into the BaTiO3 containing poly(amic acid) solution to achieve silver nanoparticles via in situ self metallization technique. The thermally induced reduction converted silver (Ⅰ) to metallic silver with concomitant imidization of poly(amic acid) to polyimide. Both BaTiO3 and silver nanoparticles were uniformly dispersed in the polyimide substrate. The dependence of dielectric behavior on the BaTiO3 and Ag contents was studied. The incorporation of small amount of silver nanoparticles greatly increased dielectric constant of composite films.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

通讯作者: De-zhen Wu,

English

Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

Corresponding author: De-zhen Wu,

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

通讯作者: De-zhen Wu,

English

Preparation of Polyimide/BaTiO3/Ag Nanocomposite Films via in situ Technique and Study of Their Dielectric Behavior

Corresponding author: De-zhen Wu,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

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CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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