Synthesis of thioamide-containing polystyrenes by Friedel–Crafts reaction and by thioamidation of (co)polydithioesters

✍ Scribed by Ghezalla Tabak; Thi-Nhàn Pham; Guy Levesque; Rachid Haraoubia

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 191 KB
• Volume: 36
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19980115)36:1<117::aid-pola16>3.0.co;2-m

✦ Synopsis

Thioamide groups were introduced into polystyrenes by the Friedel-Crafts reaction, with phenyl isothiocyanate in nitromethane solution, in the presence of anhydrous aluminium chloride. Free radical copolymerization of 4-vinyl dithiobenzoate with styrene followed by low-temperature solution condensation reactions, with excess of amines in N,N-dimethylformamide, offered another synthetic route to (co)polymers containing thioamine groups in the side chains without crosslinking.