Preparation and characterization of cyclic polyesters from ring‐chain reactions of poly(oxyepichlorhydrin oxymaloyl) |
| |
Authors: | Mohammed Issam Ferrahi Mohammed Belbachir |
| |
Affiliation: | Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences, Université d'Oran Es-Sènia BP No. 1524 El M'Naouar, 31000 Oran, Algeria |
| |
Abstract: | In this article, the synthesis and characterization of cyclic polyesters of poly(oxyepichlorhydrin oxymaloyl) from a ring‐chain reaction induced by “Maghnite,” an acid‐exchanged montmorillonite as acid solid ecocatalyst (Mag‐H+), is described. Maghnite is already used as catalyst for polymerization of many vinylic and heterocyclic monomers [Belbachir, U.S. Pat. 066969.0101 (2001)]. The reactions were monitored by gel permeation chromatography and 1H‐NMR spectroscopy and the existence of cyclic species was proven. The effect of the amount of catalyst on yield and molecular weight of polymer was studied. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 1240–1243, 2006 |
| |
Keywords: | anhydride maghnite montmorillonite maleic epichlorhydrin |
|
|