Reactions of halomethylated polymers

Many known reactions of the halomethyl groups on polymers are possible. One can. 

Chloromethylated polystyrene can also be converted to a phosphonium salt for use in the Wittig 

The product of a reaction of chloromethylated polystyrene and triphenylphosphine can also convert to nucleophiles. In addition, use of a phase transfer catalyst converts soluble chloromethylated polystyrenes to phosphine oxides. Reactions with dioctylphosphine can serve as an example. Sometimes, phase transfer reactions are easier to carry out than conventional ones. This is the case with a Witting reaction. Both linear and crosslinked chloromethylated polystyrenes react smoothly with triphenylphosphine to give derivatives that react with various aldehydes. Phase transfer catalysts can also be used in carrying out nucleophilic substitutions with the aid of sulfides, like tetrahydrothiophine 

When chloromethylated crosslinked polystyrene is reacted with potassium superoxide, the yield depends upon the type of solvent used. In dimethylsulfoxide, in the presence of 18-crown-6 ether, the conversion to hydroxymethyl groups is 45%. In benzene, however, it is only 25%. High conversions are obtained by catalyzing the reaction with tetrabutylammonium iodide in a mixture of solvents. This results in 85% conversions to hydroxymethyl groups, while the rest become iodide groups. 

Conversion of chloromethylated styrene to anionic exchai e resins is done commercially by amination reactions to form quaternary ammonium groups. These reactions can be illustrated asfollows o  

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