Solid state 1H NMR study of molecular dynamics and domain sizes in PBT with the fullerene derivates: Decylamine-C60 and tetracyanoethylene oxide-C60
Woźniak-Braszak A.1, Jurga K.1, Jurga J.2, Brycki B.3, Hołderna-Natkaniec K.1
- 1High Pressure Physics Division, Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznan, Poland
- 2Polymer Processing Division, Institute of Materials Technology, University of Technology, Piotrowo 3, 61-138 Poznan, Poland
- 3Physical Organic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
Journal of Non-Crystalline Solids, 357 (3), pp.1164-1171, 2011
DOI:: 10.1016/j.jnoncrysol.2010.11.026
Abstract:
The solid-state 1H NMR on-resonance and off-resonance techniques have been performed to study molecular dynamics and domain sizes in heterogenous nanocomposites based on poly(butylene terephthalate) and nanoparticles C60 modified by n-decylamine (DA) or tetracyanoethylene oxide (TCNEO), respectively. The spin-lattice off-resonance relaxation times in the rotating frame T1ρ off as well as the second moment M2 of the absorption line were analysed as a function of temperature. To determine the size of heterogeneities and characterize the morphology of the nanocomposites, the 1H NMR spin-diffusion experiment designed by Goldman-Shen [1,2] was performed. The results from the measurements allow us to investigate the spin-diffusion phenomenon and relaxation behavior of the new nanocomposites. © 2010 Elsevier B.V. All rights reserved.
full version of publicationshow all publications