Thermally latent reaction of hemiacetal ester with epoxide catalyzed by recyclable polymeric catalyst consisting of salen‐zinc complex and polyurethane main chain |
| |
| Authors: | Hiroyuki Komatsu Bungo Ochiai Takeshi Endo |
| |
| Institution: | Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, 4‐3‐16 Jonan, Yonezawa, Yamagata, 992‐8510, Japan |
| |
| Abstract: | This article describes the synthesis of and catalysis with a polymeric catalyst (Zn/ 1NHCOO ) carrying salen‐zinc complex structure in the main chain prepared from polyaddition of zinc/bis(4‐hydroxy)salicylidene‐1,2‐diiminoethane and 4,4′‐diphenylmethane diisocyanate. Poly(Zn/ 1NHCOO ) promoted the reaction of glycidyl phenyl ether (2) with 1‐propoxyethyl‐2‐ethylhexanoate (3) only at moderately elevated temperatures. Poly(Zn/ 1NHCOO ) can be recycled by simple filtration from the reaction mixtures, and the recycled polymer is as active as the freshly prepared one. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 3673–3681, 2008 |
| |
| Keywords: | 13C CP‐MAS addition polymerization catalyst catalytic recycles epoxide hemiacetal ester heterogeneous polymers Lewis acid recycle of catalyst salen‐zinc complex |
|
|
