4-Vinylphenol → 4-Ethynylphenol

Participants

Reaction Steps

To 501.8 g of the same p-vinylphenol fraction as used in Example 5, obtained by vacuum flash distillation were added 149.0 g of methanol and 4.5 g of dimethyl 2,2′-azobis(2-methylpropionate). A polymerization reaction was conducted at 100° C. for 3 hours to obtain 101.0 g of a poly(p-vinylphenol). The polymer had a Mw of 9,500, a Mn of 5,300, a light transmittance at 248 nm, of 74.0% and a light transmittance at 450 nm, of 94.8%.

Provenance & Evidence