Electron spin resonance study of radiation-induced solid-state polymerization of conjugated dienes
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منابع مشابه
MAGNETISATION AND ELECTRON SPIN RESONANCE STUDIES OF TETRAHEDRAL AMORPHOUS CARBON
The magnetisation and electron spin resonance (ESR) spectrum of two specimens of tetrahedral amorphous carbon (ta-C), deposited from a filtered cathodic arc, were measured over a wide temperature range. The magnetisation was found to consist of superparamagnetic, paramagnetic and diamagnetic contributions. The superparamagnetic contribution resembled that recently found in carbon prepared from ...
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The formation of essentially saturated polymers containing fused cyclohexane rings is a characteristic of the polymerization of conjugated dienes under the influence of all cationic or Lewis acid catalysts. The amount of cyclic structures and non-terminal linear unsaturation is dependent upon the electron accepting ability of the catalyst, which may be greatly influenced by the nature of the so...
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Twenty-nine types of mouse tumor and two normal mouse tissues were examined in the frozen state by electron spin resonance spectroscopy, and the redox states of some components were characterized. Intracellular organelles of mouse hepatoma and of normal mouse liver were separated by differential centrifugation and examined by elec tron spin resonance spectroscopy. The major difference between t...
متن کاملmagnetisation and electron spin resonance studies of tetrahedral amorphous carbon
the magnetisation and electron spin resonance (esr) spectrum of two specimens of tetrahedral amorphous carbon (ta-c), deposited from a filtered cathodic arc, were measured over a wide temperature range. the magnetisation was found to consist of superparamagnetic, paramagnetic and diamagnetic contributions. the superparamagnetic contribution resembled that recently found in carbon prepared from ...
متن کاملSolid-state polymerization of conjugated hexayne derivatives with different end groups
Three hexayne derivatives with different end groups—that is, 10,12,14,16,18,20-triacontahexayne-1,30-diol (1) and its diphenylurethane (2) and diphenylester (3)—were synthesized, and their solid-state polymerization behaviors were investigated. All three monomers were thermally polymerizable. Polymers from 1 and 2 showed an absorption maximum at about 730 nm, indicating that linear polydiacetyl...
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ژورنال
عنوان ژورنال: Journal of Polymer Science Part A-1: Polymer Chemistry
سال: 1966
ISSN: 0449-296X,1542-9350
DOI: 10.1002/pol.1966.150041032