Water‐insoluble polyacrylamide, 1. Syntheses and characterization of polymers from acryloylaminobenzoic acids

Abstract 2‐, 3‐ and 4‐Acryloylaminobenzoic acids were prepared in overall yields of 72, 78 and 83%, respectively. Radical polymerizations of all three monomers were studied using 2,2′‐azoisobutyronitrile as initiator in 1,4‐dioxane at three different temperatures. The unfractionated polymers were characterized by their physical properties, IR and NMR spectral studies, viscosity measurements and vapour pressure osmometry. The thermal properties were elucidated by thermogravimetry.