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.
The reaction between oxamic acid and ethylene carbonate in the presence of potassium carbonate catalyst was studied. The products were characterized by 1H NMR, IR and MALDI ToF techniques. The hydroxyethoxy derivatives of the acid are remarkably thermally stable due to the presence of oxalamidoester group. They were used as components of thermally stable polyurethane foams.
Oxamide (OD) was hydroxyalkylated with ethylene carbonate (EC). An influence of initial molar ratio of OD:EC, quantity and type of a catalyst as well as temperature on the course of reaction was studied. A structure and composition of products was analyzed by means of IR, ¹H NMR, MALDI ToF, GC and GC-MS methods. Participation of by-products was assessed and thermal stability of the reaction products...
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.