Syntheses and reactions of ferrocene-containing polymers. III. Cyclopolymerization of 1,1′-divinylferrocene

✍ Scribed by Kunitake, Toyoki ;Nakashima, Toshihide ;Aso, Chuji

• Book ID: 104535476
• Publisher: Wiley (John Wiley & Sons)
• Year: 1970
• Tongue: English
• Weight: 345 KB
• Volume: 8
• Category: Article
• ISSN: 0449-296X
• DOI: 10.1002/pol.1970.150081011

✦ Synopsis

Abstract

1,1′‐Divinylferrocene was polymerized with BF~3~OEt~2~ and AIBN initiators. Polymers were separated into benzene‐soluble and benzene‐insoluble fractions, the latter probably being crosslinked. The polymers obtained with BF~3~OEt~2~ were shown by infrared and NMR spectroscopy to contain both cyclized (70–80%) and uncyclized units, whereas the radical polymer consisted of more than 96% cyclized units. The benzene‐soluble fraction of the cationically obtained polymer softened at temperatures below 150°C, but the insoluble fraction decomposed at 240°C. The radical polymers were stable up to 250–280°C (dec).