Fast magic angle spinning solid-state 51V NMR characterization of vanadium oxide catalysts supported on TiO2

1994 ◽  
Vol 91 ◽  
pp. 909-915 ◽  
Author(s):  
D Courcot ◽  
P Bodart ◽  
C Fernandez ◽  
M Rigole ◽  
M Guelton
Keyword(s):  
Solid State ◽  
Vanadium Oxide ◽  
Magic Angle Spinning ◽  
Oxide Catalysts ◽  
Magic Angle ◽  
51V Nmr ◽  
Nmr Characterization ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning

Characterization of Polymer Compatibility by1H Dipolar Filter Solid-State NMR under Fast Magic Angle Spinning

2007 ◽  
Vol 40 (25) ◽  
pp. 9018-9025 ◽  
Author(s):  
Xiaoliang Wang ◽  
Qiang Gu ◽  
Qing Sun ◽  
Dongshan Zhou ◽  
Pingchuan Sun ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Polymer Compatibility ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning

Solid State NMR Characterization of Crosslinked Brominated Poly(Isobutylene-co-4-Methylstyrene)

1993 ◽  
Vol 66 (1) ◽  
pp. 109-120 ◽  
Author(s):  
R. R. Eckman ◽  
I. J. Gardner ◽  
H-C. Wang
Keyword(s):  
Solid State ◽  
Functional Groups ◽  
Solid State Nmr ◽  
Phenyl Ring ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Crosslinked Polymers ◽  
Nmr Characterization ◽  
Angle Spinning

Abstract The curing of brominated poly(isobutylene-co-4-methylstyrene) was studied using solid-state magic-angle-spinning NMR, a technique which is uniquely suited to investigate cured or crosslinked polymers. This brominated copolymer contains 4-bromomethylstyryl and 4-methylstyryl functional groups and was compression cured with pure ZnO. It was proposed that a precomplex is formed between zinc and the 4-bromomethylstyryl group, which generates a benzylic carbocationic intermediate. Crosslinking predominantly occurs by alkylation of the phenyl ring of another 4-bromomethylstyryl group by the benzylic intermediate. The ZnO brings the two bromides of these groups into proximity. The dependence of the cure chemistry on the concentration of 4-bromomethylstyryl functional groups was studied. Conversion of some 4-bromomethylstyryl groups to oxygenated species upon curing was also observed.

A Cross-Polarization Magic-Angle Spinning 13C NMR Characterization of the Stable Solid-State Forms of Cimetidine

1997 ◽  
Vol 86 (12) ◽  
pp. 1400-1402 ◽  
Author(s):  
David A. Middleton ◽  
Cecile S. Le Duff ◽  
Frederic Berst ◽  
David G. Reid
Keyword(s):  
Solid State ◽  
13C Nmr ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Polarization ◽  
Nmr Characterization ◽  
Angle Spinning

High-resolution magic-angle-spinning solid-state 29si NMR characterization of the structure and aluminium orderings of zeolites

1983 ◽  
Vol 20 (3) ◽  
pp. 327-336 ◽  
Author(s):  
János B. Nagy ◽  
Zelimir Gabelica ◽  
Guy Debras ◽  
Philippe Bodart ◽  
Eric G. Derouane ◽  
...  
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
29Si Nmr ◽  
Nmr Characterization ◽  
Angle Spinning
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