Branching in Polyethylenes. Study by High Resolution Nuclear Magnetic Resonance
- 1 August 1971
- journal article
- research article
- Published by Taylor & Francis in Journal of Macromolecular Science: Part A - Chemistry
- Vol. 5 (5) , 901-907
- https://doi.org/10.1080/00222337108061071
Abstract
The values of the CH3/CH2 ratios measured from accumulated NMR spectra of polyethylenes samples are in good agreement with those obtained from conventional IR techniques. Because NMR does not require calibration, systematic errors could be less important. Owing to the estimated values of the CH/CH3 ratios, tetrasubstituted carbon atoms are present in all the high-pressure polyethylene specimens.Keywords
This publication has 3 references indexed in Scilit:
- Polymethylene and the structure of polyethylene: Study of short‐chain branching, its nature and effectsJournal of Polymer Science, 1959
- On the determination of methyl content in polyethylenesJournal of Polymer Science, 1956
- The Molecular Structure of Polyethylene. I. Chain Branching in Polyethylene during Polymerization1Journal of the American Chemical Society, 1953