Methyl Isobutyl Ketone → p-1-Ethoxyethoxystyrene p-hydroxystyrene

Participants

Reaction Conditions

Reaction Steps

Into a flask were charged 108.3 g of a solution of poly(p-hydroxystyrene)(weight-average molecular weight: about 15200, degree of dispersion: 1.20 (GPC method: reduced by polystyrene), 30.0 g as the weight of poly(p-hydroxystyrene)), 0.005 g of p-toluenesulfonic acid monohydrate and 102 g of methyl isobutyl ketone, and the mixture was stirred. Into this resin solution was dropped 8.7 g of ethyl vinyl ether (0.12 mol, 0.48 equivalent based on hydroxyl groups in poly(p-hydroxystyrene)) using a dropping funnel. The mixture was stirred at 25° C. for 3 hours, then, to this was added 15 g of methyl isobutylketone and 57 g of ion exchanged water, and the solution was separated. Further, the resulted organic layer was washed with 57 g of ion exchanged water and separated, four times.

Provenance & Evidence