Abstract
The behaviour of the polymer N 2LL having a poly(amidoamine) structure [obtained by polyaddition of N, N′-dimethyl-1,4-diaminobutane to 1,4-bis(acryloyl)piperazine], was studied by Fourier transform infrared spectroscopy and potentiometric techniques in the free form, blended, surface grafted and in a network with polyurethane. The different strengths of interaction via hydrogen bond of the N 2LL chain were evaluated in the different bulks, which showed that the polymeric chains have similar behaviour when in the linear form and anchored at one end to the surface of the polyurethane support, or when both ends are fastened. The different hydrophilic character of the N 2LL polymer and polyurethane chains is responsible for differences in behaviour in the solid state and in aqueous solution.
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