1H and 13C NMR studies of molecular dynamics in the biocopolymer of glycolide and epsilon-caprolactone

Farhod Nozirov; Eugeniusz Szczesniak; Zbigniew Fojud; Piotr Dobrzynski; Jacek Klinowski; Stefan Jurga

doi:10.1006/snmr.2002.0056

1H and 13C NMR studies of molecular dynamics in the biocopolymer of glycolide and epsilon-caprolactone

Solid State Nucl Magn Reson. 2002 Aug;22(1):19-28. doi: 10.1006/snmr.2002.0056.

Authors

Farhod Nozirov¹, Eugeniusz Szczesniak, Zbigniew Fojud, Piotr Dobrzynski, Jacek Klinowski, Stefan Jurga

Affiliation

¹ Department of Macromolecular Physics, Adam Mickiewicz University, Poznań, Poland.

PMID: 12421087
DOI: 10.1006/snmr.2002.0056

Abstract

Copolymers of glycolide and epsilon-caprolactone were studied using differential scanning calorimetry and solid-state NMR. The variation of the T1 relaxation time with temperature reflects local disorder and can be quantified in terms of the distribution of correlation times predicted by the Davidson-Cole model. T, relaxation is dominated by trans-gauche isomerisation, with an activation energy of 34-35 kJ mol(-1).

Publication types

Comparative Study
Research Support, Non-U.S. Gov't

MeSH terms

Biocompatible Materials / chemistry*
Calorimetry
Carbon Isotopes
Dioxanes / chemistry*
Materials Testing / methods*
Models, Chemical*
Models, Molecular
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular / methods*
Polyesters / chemistry*
Protons
Sensitivity and Specificity
Temperature

Substances

Biocompatible Materials
Carbon Isotopes
Dioxanes
Polyesters
Protons
glycolide E-caprolactone copolymer