Miscellaneous Exchange Reactions
Many miscellaneous exchange reactions are reported in the literature. A few are presented here. One such reaction is reduction of pendant carbonyl groups of poly (vinyl methyl ketone) with metal hydrides [242, 265]:
Another one is introduction of unsaturation into pendant groups by a Wittig reaction on pendant carbonyls [266]:
Also, when Nylon 6,6 is reacted with trifluoroacetic anhydride, trifluoroacetyl nylon forms [268]:
Syndiotactic poly (2-methallyl hydrogen phthalate) can be prepared and amidated according to the following scheme [269]:
poly (pyridine ether sulfone) s in nitrobenzene [70]. The reaction can be illustrated as follows:
A20%mol excess of the alkylating reagent is required and the reaction must be conducted for 6 h at 80C. Dichloroketene, generated by the ultrasound-promoted dechlorination reaction of thrichloroacetyl chloride with zinc, adds to the carbon–carbon double bonds of poly (methyl-1-phenyl-1-silane-cis pent-3-ene) [271]. This can be illustrated as follows:
