Hydration of synthetic polydialkylphosphate (PPF) ? a simplified model for natural teichoic acids

Pulsed NMR studies of translational mobility of polymer molecules in polydialkylphosphate gels

“…The biexponentiality of the spin echo intensity dependence on the field gradient duration was found for PPP of different water content and at temperatures: 293, 308 and 323 K ( [2], Figs. 1-5).…”

“…The measurements of translational motions in PPP gels, carried out by the NMR pulsed field gradient technique [2], showed a two-phase behaviour of protons. The biexponentiality of the spin echo intensity dependence on the field gradient duration was found for PPP of different water content and at temperatures: 293, 308 and 323 K ( [2], Figs.…”

“…Self-diffusion data were obtained by the NMR pulsed field gradient technique [2] with a pulsed NMR spectrometer of 60 MHz, constructed at Karl Marx University, Leipzig. HNMR spectra of PPP gels were taken by means of the 60 MHz spectrometer with ~r/ 2 pulse width of 1 12s (E Schiller University, Jena), by the pulsed Fourier transform technique.…”

“…In our previous papers [1,2] we presented the results of investigations of hydration of low molecular weight PPP (r~ = 8). The proton magnetic relaxation K 23 and the translational mobility of water molecules in polymer gels, as studies by the pulsed NMR method, were discussed.…”

Hydration of synthetic polypropylenephosphate (PPP) ? a simplified model for natural teichoic acids Part 3. Bound (nonfreezing) water in PPP gels by the pulsed Fourier transform NMR method

“…The results of pulsed HNMR studies of synthetic poly(1,3 propylenephosphate) hydration, a simplified model for membrane teichoic acids, appearing in gram-positive bacteria, have been published earlier [1][2][3]. The results of temperature investigations of the longitudinal and transverse relaxation and translational mobility of water and polymer molecules in PPP gels have mainly given us an insight into the dynamics of molecular motion within the gels.…”