13C nuclear magnetic resonance study of structure of poly(4-methyl-1-pentene) prepared by cationic polymerization
β Scribed by Akira Mizuno; Hideshi Kawachi
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 329 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
substituted 4-methylcoumarins (4-methyl-2H-1 -benzopyran-2-ones) have been recorded. The effects of an alkyl side-chain at C-3 on the chemical shift values and that of a methoxy or an acetoxy group
## Abstract Carbonβ13 NMR spectra of some polychlorinated 2βphenoxyphenols have been obtained. The substituent chemical shifts obtained by varying the chlorine substitution pattern of one ring are very similar to those reported for the corresponding diphenyl ethers. Thus, the replacement of a 2βchl
## Abstract A ^13^C magnetic resonance investigation of 22 compounds of the general formula Oο£ΎC^1^(R^1^)C^2^(R^2^)ο£ΎC^3^(R^3^) NR^4^R^4β²^ has been carried out in order to confirm the conformational assignments estimated previously by PMR and IR spectroscopy. The effects of nonplanarity and hindered