ICCAS OpenIR
Preparation and properties of polyimide films codoped with barium and titanium oxides
Tong, YJ; Li, YS; Liu, JP; Ding, MX
2002-02-22
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume83Issue:8Pages:1810-1816
AbstractPolyimide hybrid films containing bimetalic compounds were obtained by codoping poly(amic acid) with a barium and titanium precursor prepared from BaCO3, Ti(OBu)(4), and lactic acid followed by casting and thermal curing. FTIR, WAXD, and XPS measurements showed that barium and titanium precursor could be transformed to BaTiO3 at a temperature above 650 degreesC, while the mixed oxides were only found in hybrid films. The measurements of TEM and AFM indicated a homogeneous distribution of inorganic phase with particle sizes less than 50 nm. The hybrid films exhibited fairly high thermal stability, good optical transparency, and promising mechanical properties. The incorporation of 10 wt % barium and titanium oxide lowered surface and volume electrical resistivity by 2 and 5 orders, respectively, increasing dielectric constant from 3.5 to 4.2 and piezoelectric constant from 3.8 to 5.2 x 10(-12) c/N, relative to the nondoped polyimide film. (C) 2002 John Wiley & Sons, Inc.
KeywordPolyimides Hybrid Films Nanometric Composite
DOI10.1002/app.10118
Indexed BySCI
Language英语
WOS IDWOS:000172772500024
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78522
Collection中国科学院化学研究所
Corresponding AuthorLi, YS
Affiliation1.Inst Mat & Res Engn, Singapore 117602, Singapore
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Tong, YJ,Li, YS,Liu, JP,et al. Preparation and properties of polyimide films codoped with barium and titanium oxides[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2002,83(8):1810-1816.
APA Tong, YJ,Li, YS,Liu, JP,&Ding, MX.(2002).Preparation and properties of polyimide films codoped with barium and titanium oxides.JOURNAL OF APPLIED POLYMER SCIENCE,83(8),1810-1816.
MLA Tong, YJ,et al."Preparation and properties of polyimide films codoped with barium and titanium oxides".JOURNAL OF APPLIED POLYMER SCIENCE 83.8(2002):1810-1816.
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