/cap beta/-ABSORPTION AND GLASS TRANSITIONS IN POLYMERS
Journal Article
·
· J. Polymer Sci.
Beta absorption and glass transitions were investigated in specimens of amorphous polystyrene (free-radical polymerization), cis-1,4-polybutadiene, atactic poly- alpha -butene, atactic polypropylene, natural rubber, branched polyethylene, polyethylene terephthalate, and ethylene-propylene and ethylene- 1- butene copolymers at different ethylene contents. The glass transition temperature values are tabulated. In polyethylene terephthalate and amorphous polystyrene, the transmitted activity-temperature coefficient changed, at the transition, in sign as well as in numerical value. All other polymers observed showed behavior corresponding to density changes. (P.C.H.)
- Research Organization:
- Istituto Ricerche Idrocarburi, Societa Montecatini, Ferrara, Italy
- NSA Number:
- NSA-17-011282
- OSTI ID:
- 4727281
- Journal Information:
- J. Polymer Sci., Journal Name: J. Polymer Sci. Vol. Vol: 62
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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