Výsledky vyhledávání

The Ozonation of N,N′-Di-n-Octyl-p-Phenylenediamine and N,N′-Di-(1,1-Dimethylethyl)-p-Phenylenediamine

Autor: R. P. Lattimer, E. R. Hooser, R. W. Layer, C. K. Rhee

Publikováno v: Rubber Chemistry and Technology. 64:780-789

Ozone attack on rubber compounds causes characteristic cracking perpendicular to the direction of applied stress. This degradation is caused by reaction of ozone with the double bonds in the rubber molecules. This causes chain scission and the format

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a020a348e73f33e3a387bfdd72d3a45
https://doi.org/10.5254/1.3538590

Zobrazit plný text záznamu

Mechanisms of Antiozonant Protection: Antiozonant-Rubber Reactions during Ozone Exposure

Autor: C. K. Rhee, R. W. Layer, R. P. Lattimer

Publikováno v: Rubber Chemistry and Technology. 57:1023-1035

Rubber (IR or BR) vulcanizatcs containing DOPPD antiozonant have been aged under ozone, and the soluble constituents have been removed by acetone extraction. Small amounts of nitrogen from the antiozonant remain in the rubber after extraction; this n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4048f6dd4af57a70545891b1f8979e70
https://doi.org/10.5254/1.3536041

Zobrazit plný text záznamu

Mechanisms of Ozonation of N-(1,3-Dimethylbutyl)-N′-Phenyl-p-Phenylenediamine

Autor: R. P. Lattimer, C. K. Rhee, E. R. Hooser, R. W. Layer

Publikováno v: Rubber Chemistry and Technology. 56:431-439

The ozonation products of a common rubber antiozonant, N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine (HPPD), have been separated by liquid chromatography and identified by mass spectrometry. Three principal mechanisms appear to govern the ozon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45e04e2d79b095953b166ba2727e8e9c
https://doi.org/10.5254/1.3538136

Zobrazit plný text záznamu

Mechanisms of Antiozonant Protection: Unextractable Nitrogen in Aged Cis-Polybutadiene Vulcanizates

Autor: R. P. Lattimer, C. K. Rhee, J. Gianelos, H. E. Diem, R. W. Layer

Publikováno v: Rubber Chemistry and Technology. 59:263-273

Rubber (BR) vulcanizates containing DOPPD antiozonant and DPG accelerator have been aged under various conditions, and the soluble constituents have been removed by acetone extraction. Small amounts of nitrogen become bound to the rubber network as a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9ddb4186299aaef2e7fdf1b088ff429b
https://doi.org/10.5254/1.3538199

Zobrazit plný text záznamu

Mechanisms of Ozonation of N,N′-di-(1-Methylheptyl)-p-Phenylenediamine

Autor: H. E. Diem, C. K. Rhee, E. R. Hooser, R. W. Layer, R. P. Lattimer

Publikováno v: Rubber Chemistry and Technology. 53:1170-1190

The ozonation products of a common rubber antiozonant, N,N′-di-(l-methylheptyl)-p-phenylenediamine (DOPPD), have been separated by liquid or gas chromatography. Molecular weights of about thirty LC separated components have been measured by field d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1049a01a8ab4ee7f0b6650f16729c4bd
https://doi.org/10.5254/1.3535087

Zobrazit plný text záznamu

Electron Spin Resonance Study of Phenolic Antioxidants. Correlations of Organic Free Radical Stability with Antioxidant Activity

Autor: C. J. Carman, J. C. Westfahl, R. W. Layer

Publikováno v: Rubber Chemistry and Technology. 45:402-422

Electron spin resonance (ESR) is a well established, sensitive spectroscopic technique for determining the molecular structure, as well as the lifetime or stability of organic free radicals. Consequently, ESR spectroscopy provides a logical method fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bb5ef60326c71bf32805ff1f4ef0f39
https://doi.org/10.5254/1.3544719

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání