Enhancement of Dimensional Stability and Optical Transparency of Colorless Organo-Soluble Polyimide by Incorporation of Silica and Cosolvent

Autor:	Ching-Wen Hsieh, Shih-Liang Huang, I-Hsiang Tseng, Mei-Hui Tsai
Rok vydání:	2013
Předmět:	Materials science Polymers and Plastics business.industry General Chemical Engineering Optical transparency Optical transmittance Substrate (electronics) Thermal expansion Analytical Chemistry Chemical engineering Polymer chemistry Microelectronics Thermal stability business Polyimide
Zdroj:	International Journal of Polymeric Materials and Polymeric Biomaterials. 63:48-56
ISSN:	1563-535X 0091-4037
Popis:	One facile approach to synthesize colorless polyimide (PI) film with enhanced dimensional stability and optical transparency is presented. With the optimum weight ratio of cosolvent GBL/DMAc, the PI film demonstrates the highest thermal stability and optical transparency. A further improvement in dimensional stability and optical transparency is achieved by blending silica sol and coupling agent in PI solution. The PI-50wt%SiO2 film exhibits a low coefficient of thermal expansion of 26 ppm/°C, high optical transmittance at 550 nm of 90.1%, and an ultra-low yellow index less than 1.4, indicating its potential application as substrate material in advanced microelectronic applications. [Supplementary materials are available for this article. Go to the publisher's online edition of International Journal of Polymeric Materials and Polymeric Biomaterials for the SI Figures.]
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::209c054a602a5d7d9e84eb0608fd5aac https://doi.org/10.1080/00914037.2013.769247 Zobrazit plný text záznamu