Nuclear magnetic relaxation in poly(N-amyl maleimide) and poly(N-dodecyl) maleimide

Longitudinal relaxation times in the laboratory (T₁) and rotating (T_1ρ) frames have been measured for poly(N-amyl maleimide) and poly(N-dodecyl maleimide). The results are compared with information previously published using dielectric relaxation techniques. A total of three relaxation processes have been detected corresponding to methyl rotation, motion within the substituent alkyl chain and out-of-plane deformation of the maleimide ring. An attempt to fit the T₁ data in the dodecyl derivative to theoretical equations is described.