Peak area measurements of cross-polarization magic-angle-spinning 13C-NMR spectra of crosslinked polystyrenes
โ Scribed by Warren T. Ford; M. Periyasamy; S. Mohanraj; Frajk J. McEnroe
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 567 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0887-624X
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract The 13C chemical shifts of the CP/MAS NMR for ferrocene derivatives have been measured. Copyright ยฉ 2002 John Wiley & Sons, Ltd.
The unsaturated polyesters derived from maleic anhydride and 2,2-di(4-hydroxypropoxyphenyl)propane were copolymerized with styrene in order to obtain the crosslinked materials. They were studied by means of high resolution 13C n.m.r. in the solid state (CP/MAS). The structural changes upon crosslink
## Synopsis ' C n m r has been employed to probe the molecular conformation and crystal structure of (1+6)-P-~-glucan (pustulan) in the solution, gel, and solid states. CP/MAS Y-nmr spectra recorded for partially crystalline solid pustulan display a resonance near 82 ppm that is absent in solution
The solid state "C NMR spectral lineshape of a carbon atom directly bonded to a quadrupolar nucleus can take the form of an asymmetric multiplet in magic-angle spinning experiments. In this study, we have obtained spectra at various B0 field strengths of a sugar molecule deuterated at a specific pos
The thermodynamics and kinetics of the diethylbenzene-benzene transalkylation have been studied in liquid phase over faujasite Y in a batch reactor. The reactions were conducted at several temperatures between 423 and 513 K. The main product of the reaction was ethylbenzene. When the molar ratio of