Reaction-controlled phase-transfer catalysis applications

Although most of the work on the use of phase transfer catalysis for the chemical modification of polymers was carried out in the last five years, the first report of the application of this technique to the modification of reactive polymers originated ten years ago from the laboratory of Okawara, one of the great innovators of polymer chemistry, and was concerned with the chemical modification of poly(vinyl chloride) (Ref. 10, 11). This was followed by simultaneous brief reports by Roovers (Ref. 12) and by Roeske et al. (Ref. 13) describing the use of 18-crown-6 in the reaction of carboxylates with poly(chloromethyl styrene). Our own first report (Ref.14) in this field described the use of phase transfer catalysis to control site-site interactions in the... 

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