Evaluation of Chemical Protectants as Inhibitors of Ozone-Induced Degradation of GR-S

Delman, A. D.; Simms, B. B.; Allison, A. R.

doi:10.1021/ac60094a016

Anal. Chem.

1954

DOI: 10.1021/ac60094a016

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Evaluation of Chemical Protectants as Inhibitors of Ozone-Induced Degradation of GR-S

A. D. Delman¹,

B. B. Simms²,

A. R. Allison³

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Cited by 4 publications

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On the mechanism of ozone degradation of SBR

Delman¹,

Simms²,

Ruff³

1960

J. Polym. Sci.

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The reaction mechanism of the ozone attack of SBR copolymers was studied to obtain information for use in the development of elastomeric materials having improved resistance to deterioration in service. Techniques of ultracentrifugation and viscometry were utilized to follow molecular changes induced by ozone. Chemical changes were investigated by measuring variations in active oxygen group concentration. Results suggest that the autocatalytic degradation of uninhibited SBR was initiated by a random ozone attack at a double bond on the unozonized chain, producing an ozonide which decomposed spontaneously, forming small segments with activated chain‐ends. This primary reaction, in the presence of oxygen, activated an α‐methylenic chain cleavage process which was terminated when the molecules were degraded to a limiting size, where no more R. radicals were formed from α‐methylenic groups. The reaction was also terminated when oxygen was removed from the system.

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On the mechanism of ozone degradation of SBR

Delman¹,

Simms²,

Ruff³

1960

J. Polym. Sci.

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Study of the ozone degradation of polybutadiene, polyisoprene and polychloroprene in solution

Anachkov

Rakovsky

Шопов

et al. 1985

Polymer Degradation and Stability

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Mechanisms of antiozonant protection of elastomers

Lake

Mente

1995

Polymer Degradation and Stability

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Evaluation of Chemical Protectants as Inhibitors of Ozone-Induced Degradation of GR-S

Cited by 4 publications

References 5 publications

On the mechanism of ozone degradation of SBR

On the mechanism of ozone degradation of SBR

Study of the ozone degradation of polybutadiene, polyisoprene and polychloroprene in solution

Mechanisms of antiozonant protection of elastomers

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