The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this work, we report highly transparent flexible polyimide/silica hybrids with low coefficient of thermal expansion (CTE) comparable to that of a glass, low optical birefringence and high thermal stability over 400 °C. We started from the polyimide system based on 2,2′-bis-(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA)/2,2′-bis-(trifluoromethyl)-4,4′-diaminobiphenyl (TFDB), which has...
Herein we report a method that improves the optical properties of polyimide-aramid (PIA) by the addition of a large quantity of silica. High silica loading was successful due to the good compatibility of synthesized unique silane end-capped polyimide-aramid (PIA) with in-situ formed silica nanoparticles. The prepared polymer films exhibited excellent optical properties, stability at 400 °C, a high...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.