scholarly journals The Applications of Solid-State NMR to Conducting Polymers. The Special Case on Polyaniline

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 444 ◽  
Author(s):  
Zoran Zujovic ◽  
Paul A. Kilmartin ◽  
Jadranka Travas-Sejdic
Keyword(s):  
Solid State ◽  
Conducting Polymers ◽  
Solid State Nmr ◽  
Oxidation Products ◽  
Morphological Properties ◽  
Structural Investigations ◽  
Synthesis Conditions ◽  
Aniline Oxidation ◽  
Nmr Techniques

Polyaniline is one of the most well studied conducting polymers due to its advanced electrical, chemical, redox and morphological properties. The high conductivity of regular polyaniline, when partially oxidized and doped under acidic conditions, has been associated with the formation of unique electronic states known as polarons and bipolarons. Alternative aniline oxidation products and interesting nanotube and nanorod forms have been observed as the synthesis conditions are varied. Solid-state NMR has offered great opportunities for structural investigations and the determination of molecular dynamics in such a complex and diverse material. This review summarizes various applications of solid-state NMR techniques to polyaniline and its derivatives and the information that can be obtained by solid-state NMR.

Determination of Phase Content in Multiphase Polymers by Solid-State NMR Techniques

2012 ◽  
Vol 714 ◽  
pp. 51-56 ◽  
Author(s):  
Antonio Martínez-Richa ◽  
Regan Silvestri
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Magic Angle Spinning ◽  
Polymer Chains ◽  
Magic Angle ◽  
Aliphatic Polyesters ◽  
Polymer Systems ◽  
Nmr Techniques ◽  
Angle Spinning

Solid-state nuclear magnetic resonance (NMR) spectroscopy has emerged as a relatively facile technique for the characterization of multi-component polymer systems. In particular, it has emerged to be a useful technique for probing the molecular structure, conformation and dynamics of polymer chains at interfaces between phases in various types of multi-component polymer systems including nanomaterials. The usefulness of solid-state NMR stems from its ability to non-destructively probe not only the bulk of the polymer, but moreover its ability to selectively probe the interface or interphase. As such, the technique has been extensively exploited in the study of multi-component polymer systems. To achieve13C spectral resolution in the solid-state magic angle spinning (MAS), dipolar decoupling and cross-polarization are applied which enables the study of individual carbon atoms directly with excellent resolution and sensitivity. Some examples of applications of this technique to the study of multiphase aliphatic polyesters are reviewed herein.

Determination Of Aluminum Coordination Environments In Amorphous AI2O3 By Solid State Nmr Spectroscopy

1993 ◽  
Vol 321 ◽  
Author(s):  
William S. Rees ◽  
Lamy J. Chopin
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Microstructural Development ◽  
Coordination Environment ◽  
Solid State Nmr Spectroscopy ◽  
Recent Developments ◽  
Nmr Techniques

ABSTRACTIt previously has been difficult to probe the localized coordination environment of aluminum atoms in amorphous alumina samples by solid state NMR spectroscopy. Such an in situ technique has benefits in probing the structure of the material and monitoring the evolution of the microstructural development during thermal processing. The recent developments of more sophisticated NMR techniques by Pines, et al., specifically devised for treatment of problems unique to the solid state spectroscopy of quadrupolar nuclei, have permitted a glimpse into these Materials. As a result of applying these experimental techniques to new materials systems, a better understanding of the solid state structure of amorphous aluminas derived from polymer pyrolysis has emerged. Correlations between the onset and completion of crystallization and the localized structure may now be possible.

ChemInform Abstract: Solid-State NMR Techniques in Oriented Systems

ChemInform ◽  
2010 ◽  
Vol 23 (43) ◽  
pp. no-no
Author(s):  
K. V. RAMANATHAN ◽  
B. S. ARUNKUMAR ◽  
N. SURYAPRAKASH ◽  
R. PRATIMA ◽  
C. L. KHETRAPAL
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Nmr Techniques

scholarly journals Structure determination of molecular nanocomposites by combining pair distribution function analysis and solid-state NMR

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 8895-8902 ◽  
Author(s):  
E.-E. Bendeif ◽  
A. Gansmuller ◽  
K.-Y. Hsieh ◽  
S. Pillet ◽  
Th. Woike ◽  
...  
Keyword(s):  
Distribution Function ◽  
Solid State ◽  
Solid State Nmr ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Structural Characterisation ◽  
Atomic Pair Distribution Function ◽  
X Ray Scattering ◽  
Atomic Pair

Total X-ray scattering coupled to atomic pair distribution function analysis (PDF) and solid state NMR allowed the identification and structural characterisation of isolated molecules and nanocrystals of sodium nitroprusside confined in mesoporous silica.

Solid-State NMR Structure Determination of Whole Anchoring Threads from the Blue Mussel Mytilus edulis

2012 ◽  
Vol 14 (1) ◽  
pp. 132-141 ◽  
Author(s):  
Alexandre A. Arnold ◽  
Frédéric Byette ◽  
Marc-Olivier Séguin-Heine ◽  
André LeBlanc ◽  
Lekha Sleno ◽  
...  
Keyword(s):  
Solid State ◽  
Mytilus Edulis ◽  
Structure Determination ◽  
Solid State Nmr ◽  
Blue Mussel ◽  
Nmr Structure ◽  
Nmr Structure Determination
Sign in / Sign up

Export Citation Format

Share Document