| Abstract: | Novel fully lower‐rim, carbonate‐bridged calix8]arene derivatives were successfully synthesized in high yield by the condensation of p‐alkyl substituted calix8]arenes with triphosgene. Different bases and catalysts were used for the preparation depending on the p‐alkyl substituted groups of the calix8]arenes. The conformational features of the derivatives were examined by 1H NMR analysis. Thermosetting formulations were prepared from a mixture of bisphenol A polycarbonate with calix8]arene carbonate derivatives using sodium benzoate as a catalyst. Their crosslinking behaviors were studied using differential thermal/thermogravimetric analysis. No glass‐transition temperatures were observed after annealing at 280–300 °C. © 2001 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 39: 1149–1155, 2001 |
