Reactivity ratios for the anionic copolymerization of ethylene oxide and butylene oxide in bulk

✍ Scribed by Stewart Dickson; Ga-Er Yu; Frank Heatley; Colin Booth

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 354 KB
• Volume: 29
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(93)90094-v

✦ Synopsis

A~traet--Reactivity ratios have been determined for the anionic copolymerization of ethylene oxide and butylene oxide in bulk at temperatures of 40 and 60 °. The ratios were obtained from the variation with feed composition of: (i) copolymer composition; and (ii) triad sequence probabilities. Finite conversions (< 15%) were accounted for in the analyses. The reactivity ratios (independent of temperature) had average values r E = 4.1 ___ 0.8 and r B = 0.17 _ 0.03.