Supramolecular Effect in Initiated Oxidation of Polyisoprene and Polyisoprene-Polybutadiene Blends in Chlorobenzene Solution
โ Scribed by E. I. Kulish; A. Ya. Gerchikov; S. V. Kolesov; G. E. Zaikov
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2005
- Tongue
- English
- Weight
- 49 KB
- Volume
- 78
- Category
- Article
- ISSN
- 1070-4272
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High-Vinyl Polybutadiene (HVBD)/ cis-Polyisoprene (CPI) blends were characterized by Differential Scanning Calorimetry (DSC) and Positron Annihilation Lifetime Spectroscopy (PALS). A single DSC glass transition temperature T g is observed, whose composition dependence strongly deviates from additivi
Measurements of average free volume hole sizes, อv f อ, and the fractional free volumes, f ps , in vulcanized cis-polyisoprene (CPI), high-vinyl polybutadiene (HVBD), and their 50 : 50 blend were made via determination of orthopositronium annihilation lifetimes. The results are compared to correspon