Paper Title:
Microstructure and Properties of Polyimide /Monodispersed Colloidal Silica Hybrid Films Prepared by Sol–Gel Process
  Abstract

In this study, the polyimide-silica hybrid thin films, 6FDA-6FpDA-4ABA/SiO2 (FS0-FS50) were prepared from the 12nm colloidal silica and polyimide bearing acid endgroups. During the preparation, without any additional coupling agents or chelating ligands were used. The strong interactions between carboxylic acid coordinating with silica were believed to prevent the macrophase separation. TGA analysis showed that the thermal decomposition temperatures (Td) incresased with increasing the silica content. UV-VIS spectra showed that the cutoff wavelength of prepared hybrid films could be tunable through the silica content. The n&k analysis showed that the refractive index (n) of PS hybrid films were in the range of 1.575-1.479, which could be controlled by the silica content. The extinction coefficients (k) are almost zero in the wavelength range of 300–900 nm, indicating the prepared hybrid films have an excellent optical transparency in the UV and visible region. TEM images showed that the particle size of silica in the hybrid thin films could be effectively controlled. The results of SEM and AFM showed that all the prepared hybrid films have a good planarity. It demonstrated that the prepared polyimide-silica hybrid thin films have an excellent film formability and planarity.

  Info
Periodical
Advanced Materials Research (Volumes 47-50)
Edited by
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
Pages
650-653
DOI
10.4028/www.scientific.net/AMR.47-50.650
Citation
Y. Y. Yu, W. C. Chien, T. W. Tsai, "Microstructure and Properties of Polyimide /Monodispersed Colloidal Silica Hybrid Films Prepared by Sol–Gel Process", Advanced Materials Research, Vols. 47-50, pp. 650-653, 2008
Online since
June 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xi Yun He, Ai Li Ding, Yong Zhang, Zi Ping Cao, Ping Sun Qiu
Abstract:PLZT (9/65/35) thin films on sapphire (001) substrates with thickness of 0.1 ~ 0.9 µm were prepared by a metal-organic decomposition (MOD)...
231
Authors: Bum Rae Cho
Abstract:Indium tin oxide (ITO) used in many applications such as electronic and optical devices were deposited on the soda lime glass substrate by...
195
Authors: Bajirao K. Sonawane, Mukesh P. Bhole, Dnyaneshwar S. Patil
Abstract:Single crystalline a-axis Mg doped ZnO thin films (MgxZn1-xO) were successfully prepared by sol-gel spin coating method using Zinc acetate,...
2915
Authors: S.A. Aly
Abstract:The optical properties of tungsten oxide (WO3) films prepared by DC sputtering on unheated glass substrates with different film thicknesses...
11
Authors: Ching Fang Tseng, Yun Pin Lu, Hsin Han Tung, Pai Chuan Yang
Chapter 3: Electrical, Magnetic and Optical Ceramics
Abstract:This paper describes physical properties of (Ca0.8Sr0.2)TiO3 were deposited by sol-gel method with a fix per-heating temperature of 400oC for...
1171