Phenol → 4-Ethynylphenol

Participants

Reaction Steps

To 536.3 g of a p-vinylphenol fraction obtained by the same vacuum flash distillation as in Example 1, containing 32.9% of p-vinylphenol, 49.1% of p-ethylphenol, 1.6% of phenol, 7.0% of p-cresol and 9.4% of water were added 160.9 g of methanol as a solvent and 5.36 g of dimethyl 2,2′-azobisisobutyrate as an initiator. The resulting mixture was subjected to a polymerization reaction at 80° C. for 5 hours. The reaction mixture was treated in the same manner as in Example 1 to obtain 98.2 g of a poly(p-vinylphenol). The polymer had a Mw of 8,800, a Mn of 5,200 and a light transmittance at 248 nm, of 76.9%.

Provenance & Evidence