Synthesis of end-functionalized polymers by means of living anionic polymerization, 3. Synthesis of polystyrene and polyisoprene with 1,3-butadienyl termini by reaction of their anionic living polymers with 6-bromo-3-methylene-1-hexene

✍ Scribed by Katsuhiko Takenaka; Akira Hirao; Seiichi Nakahama

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 468 KB
• Volume: 196
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1995.021960524

✦ Synopsis

Both polystyrenes and polyisoprenes with 1,3-butadienyl end-groups were synthesized by the reactions of polystyryl and polyisoprenyl anions with 6-bromo-3-methylene-1 -hexene (3). The 1,3-butadienyl end-group was further transformed to an anhydride function by Diels-Alder reaction with maleic anhydride. These end-functionalized polymers were characterized by size exclusion chromatography (SEC), infrared spectroscopy, elemental analysis,'H and 13C NMR, and thin layer chromatography coupled with a flame ionization detector. All analytical deta indicate that the polymers are quantitatively end-functionalized with 3 and then with maleic anhydride. Polymers with one or two end-functions are obtainable.