Recent work in our laboratory has focused on the synthesis of bisphenol A copolyethers and copolyesters containing lower-rim bound calix [4] arenes on the main chain. 1 The successful polymerization of upper-rim derivatized calix [4] arenes with terephthaloyl chloride was reported by Blanda and Adou to give two new calixarenebased polyesters. 2 The polymers described by us and Blanda represent the first examples of incorporation of ...