## A~~act~ompa~~n of "C NMR spectra in solid pitches taken under conditions of: cross polarization with strong proton decoupling, but no sample rotation (CP), and cross polarization with strong proton decoupling and magic angle sample spinning (CP/MAS) indicate that there is a considerable loss of
Analysis of Hydroperoxides in Solid Polyethylene by MAS 13 C NMR and EPR
โ Scribed by Assink, Roger A.; Celina, Mathew; Dunbar, Timothy D.; Alam, Todd M.; Clough, Roger L.; Gillen, Kenneth T.
- Book ID
- 127225422
- Publisher
- American Chemical Society
- Year
- 2000
- Tongue
- English
- Weight
- 133 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0024-9297
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๐ SIMILAR VOLUMES
## Abstract The carbonโ13 spinโlattice relaxation times __T__~1~ of the crystalline components of four solid ethyleneโoctene copolymers have been studied as a function of thermal history, branching number, and branching distribution. Slowly cooled samples (1 deg/min from melt to room temperature) e
## Abstract In order to obtain some insight into the structure of an ultrahighโmolecularโweight polyethylene sample, ^13^C CP/MAS NMR experiments have been carried out at temperatures from 23 to โ108ยฐC. The peak for the crystalline component moves upfield with a decrease in temperature, which is co