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541.
542.
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option. 相似文献
543.
Doklady Mathematics - This paper is a survey of results concerning different kinds of Diophantine exponents. Special attention is paid to the transference principle and the generalization of the... 相似文献
544.
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option. 相似文献
545.
Galina Abramova Juerg Schefer Nadir Aliouane Martin Boehm German Petrakovskiy Alexandr Vorotynov Mikhail Gorev Asya Bovina Vladimir Sokolov 《ChemInform》2015,46(22):no-no
Single crystals of the α-MnS-based FexMn1-xS (x = 0-0.3) solid solutions are prepared and shown to be new Mott materials with the rock salt structure. 相似文献
546.
Sebastiaan C.J. Pierik Rainer Vollmerhaus Alex M. van Herk Anton L. German 《Macromolecular Symposia》2002,182(1):43-52
The catalytic chain transfer polymerization of styrene is only truly effective when the reaction mixture is exposed to (UV-)light. The apparent chain transfer constant depends inversely on radical concentration and can be increased up to 8000. These results can be explained by combining aspects of both catalytic chain transfer and the formation of cobalt-carbon bonds. For the catalytic chain transfer polymerization of n-butyl acrylate a chain transfer constant of 650 was found. The resulting transfer coefficient has the same order of magnitude as the one for n-butyl methacrylate. This means that the absence of an α-methyl group hardly influences the transfer step itself. Furthermore, the effect of possible impurities on the catalytic chain transfer polymerization of methyl methacrylate is investigated. 相似文献
547.
Harold A. S. Schoonbrood Bram van den Reijen John B. L. de Kock Bart G. Manders Alex M. van Herk Anton L. German 《Macromolecular rapid communications》1995,16(2):119-124
The propagation rate coefficient of the terpolymerization of styrene, methyl methacrylate and methyl acrylate in bulk was successfully determined at three different monomer compositions. The temperature was varied between 18 and 80°C. The resulting data at 50°C were not in agreement with predictions according to the terminal model with binary reactivity ratios that have been determined by fitting copolymer composition data with the terminal model. This indicates that here also the penultimate unit affects the kinetics. 相似文献
548.
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option. 相似文献