Azobisisobutyronitrile → Fluorene

Participants

Reaction Conditions

Reaction Steps

A mixture of the polymeric macroinitiator, 7 (2.0 g, 0.22 mmol, Mw) 7700, PDI) 1.11), 3 (0.668 g, 1.55 mmol), and AIBN (0.43 mg, 0.03 mmol) was dissolved in 2% H2O in THF (6.0 mL), degassed by four freeze/pump/thaw cycles, and sealed under argon. The polymerization mixture was then stirred at 85° C. for 48 h and allowed to cool, and the star polymer, 23, was obtained after precipitation using ethyl acetate followed by dialysis against methanol (1.9 g, 71%, Mw) δ 500, PDI) 1.32). 1H NMR (CDCl3): δ (ppm) 7.10-7.28 (br m, ArH), 5.03 (br s, CH), 4.35 (br s, CH2), 2.68 (br s, CH2), 2.42 (br s, CH2), 1.95 (br s, CH2), 1.50-1.85 (br m, CH2).

Provenance & Evidence