Electron spin resonance study of polyglycols
- 1 March 1968
- journal article
- research article
- Published by Wiley in Journal of Polymer Science Part A-1: Polymer Chemistry
- Vol. 6 (3) , 505-511
- https://doi.org/10.1002/pol.1968.150060307
Abstract
Polyethylene glycols and polypropylene glycols were irradiated with gamma‐rays from a 60Co source at 77°K. Electron spin resonance spectra of the free radicals produced were recorded. It was found that the rupture in the polymer chain takes place at *CC and CO bonds. The radicals identified were OCH2 in polyethylene glycols and mainly magnified image in polypropylene glycols. Thermal decay of these radicals followed a second‐order law, and the decay constant calculated was k = 2.32 × 105 cm.3 mole−1 sec.−1 A complete discussion of the results is presented.Keywords
This publication has 13 references indexed in Scilit:
- On the determination of molecular weights of polypropylene glycols and polyethylene glycols by hydroxyl endgroup analysisJournal of Polymer Science Part B: Polymer Letters, 1966
- Heat capacities of propylene oxide and of some polymers of ethylene and propylene oxidesPolymer, 1966
- Irradiated polyethylene I—Free radical formationPolymer, 1966
- Electron spin resonance studies on oriented polyoxymethyleneJournal of Polymer Science Part A: General Papers, 1965
- Electron Spin Resonance Study of Oriented Polypropylene.Acta Chemica Scandinavica, 1965
- Electron Spin Resonance of Irradiated PolyoxymethyleneJournal of the Physics Society Japan, 1962
- Electron spin resonance studies of irradiated polymers I. Factors affecting the electron spin resonance spectra of irradiated polymersPolymer, 1961
- Electron spin resonance spectrum of stretched polyethyleneJournal of Physics and Chemistry of Solids, 1961
- Paramagnetic-Resonance Studies of Irradiated High-Density Polyethylene. I. Radical Species and the Effect of Environment on Their BehaviorThe Journal of Chemical Physics, 1960
- Paramagnetic Species Produced by γ Irradiation of Organic CompoundsThe Journal of Chemical Physics, 1958