One-step synthesis of bis-macromonomers of poly(1,3-dioxolane) catalyzed by Maghnite-H+

✍ Scribed by Fatiha Reguieg; Nabahat Sahli; Mohamed Belbachir; Pierre J. Lutz

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 94 KB
• Volume: 99
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.22935

✦ Synopsis

Abstract

Telechelic poly(1,3‐dioxolane) (PDXL) bis‐macromonomers bearing methyl methacrylate end groups were prepared by cationic ring‐opening polymerization of 1,3‐dioxolane (DXL), in the presence of methacrylic anhydride, catalyzed by Maghnite‐H^+^ (Mag‐H^+^), in bulk and in solution. Maghnite is a montmorillonite sheet silicate clay, which exchanged with protons to produce Mag‐H^+^. The influence of the amount of Mag‐H^+^, monomer (DXL), and methacrylic anhydride on monomer conversion was studied. The polymerization yield and the molecular weight of α,ω‐bis‐unsaturated PDXLs prepared depend on the amount of Mag‐H^+^ used and the reaction time. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci, 2006