Polyvinylpyrrolidone in aqueous solutions of various concentration has been degraded by freezing the solvent. The kinetics and mechanism of degradation of linear polymer molecules under these conditions has been elaborated and the similarities with ultrasonic degradation by cavitation, which is mechanical in nature, have been pointed out. Experimental results for the degradation of polystyrene in benzene and of polyvinylpyrrolidone in water follow the proposed kinetics and mechanism.
No takes yet. Share an insight, caveat, or question.
Jellinek et al. (1967) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: