Ring-opening copolymerization of anhydroalditols with tetrahydrofuran

✍ Scribed by Joachim Thiem; Wilhelm A. Strietholt

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 386 KB
• Volume: 196
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1995.021960511

✦ Synopsis

By ring-opening copolymerization of 1,4-anhydr0-2,3-di-O-ethyl-~-erythritol (cis-3,4-diethoxyoxolane, 1) or 1,4:2,5:3,6-trianhydro-~-mannitol (3) with tetrahydrofuran carbohydratecontaining copolyether polyols were obtained. Using trifluoromethanesulfonic acid as catalyst the molecular weights were in a range from M , = 13OOO up to 25000 with about 10% of carbohydrate constituent. The novel copolyethers were studied by polymer analytical procedures, their structures 4 and 5 tentatively assigned and compared to the homopolymerization products of the monomers. The present procedure features an approach to novel partially functionalized high molecular weight copolymer polyols based on carbohydrate-derived materials.