2,2'-Bipyridine → HCID 21546549, compound

Participants

Reaction Conditions

Reaction Steps

To 0.11 g (6.68×10−4 mole) 2,2′-bipyridine and 0.036 g (2.34×10−4 mole) CuBr at −30° C. in a glass tube, was added 1.75 mL (2×10−2 mole) isobutene, 0.5 mL (0.55×10−2 mole) butyl acrylate (BA) and 0.040 mL (2.34×10−4 mole) diethyl methyl bromomalonate under an argon atmosphere. The glass tube was sealed under vacuum and the reaction mixture warmed to 50° C. for 12 hours. The reaction mixture was then dissolved in THF and the conversion of BA as determined by GC was 100%. The polymer was then precipitated into methanol (three times), filtered, dried at 60° C. under vacuum for 48 h and weighted. Mn=3180, Mw/Mn=1.38 (Mth=3400). The content of isobutene in the copolymer was determined by integration of C(O)OCH2 from butyl acrylate and the gem-dimethyl region of the 1H-NMR spectrum was 49%. The Tg of product, as determined by DSC, was −48° C.

Provenance & Evidence