General Procedure for the Preparation of Polysulfones from Acetylenes

General Procedure for the Preparation of Polysulfones from Acetylenes [54] 

Ten milliliters each of liquid sulfur dioxide and the substituted acetylene are placed in a pressure bottle, and 5 ml of ethyl alcohol is added. The bottles are sealed and allowed to stand overnight, then cooled and opened to permit the 

TABLE XII Representative Copolymerizations of Sulfiir Dioxide and IjS-Cyclooctadiene  

Reaction medium Initators Temp (°C) Time (hr) Atmosphere Yield (%) 7iidi S (%) 

Acetylenic compound SOa (ml) Solvent (ml/EtOH) Catalyst Reaction time (hr) Polymer yield (gm or %) m.p. polymer (°C) Ref. 

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