منابع مشابه
Beyond Traditional RAFT: Alternative Activation of Thiocarbonylthio Compounds for Controlled Polymerization
Recent developments in polymerization reactions utilizing thiocarbonylthio compounds have highlighted the surprising versatility of these unique molecules. The increasing popularity of reversible addition-fragmentation chain transfer (RAFT) radical polymerization as a means of producing well-defined, 'controlled' synthetic polymers is largely due to its simplicity of implementation and the avai...
متن کاملControlled Polymerization: Beyond Traditional RAFT: Alternative Activation of Thiocarbonylthio Compounds for Controlled Polymerization (Adv. Sci. 9/2016)
In Research News article 1500394, recently developed methods for activating polymerizations employing RAFT agents are described by T. G. McKenzie, C. Boyer, M. Kamigaito, G. G. Qiao, and co-workers. Direct photolysis, or the use of a multitude of (in)organic photoredox catalysts are shown to be effective for activation of radical polymerizations, while various acids are employed together with d...
متن کاملNONSTOICHIOMETRIC COMPOUNDS Nonstoichiometry in line compounds
Phases having compositional fields narrower than about 1 at.% and appearing as lines in binary phase diagrams often are assumed to have properties independent of composition. That such an assumption can be seriously in error is illustrated by recent measurements on pairs of samples prepared to have compositions at opposing phase boundaries. Two microscopic properties, lattice locations of highl...
متن کاملSelenium Compounds
Selenium is a naturally occurring substance that is toxic at high concentrations but is also a nutritionally essential element. Hydrogen selenide is the most acutely toxic selenium compound. Acute (short-term) exposure to elemental selenium, hydrogen selenide, and selenium dioxide by inhalation results primarily in respiratory effects, such as irritation of the mucous membranes, pulmonary edema...
متن کاملNoun compounds
A noun-compound is a compressed proposition that requires an audience to recover the implicit relationship between two concepts that are expressed as nouns. Listeners recover this relationship by considering the most typical relations afforded by each concept. These relational possibilities are evident at a linguistic level in the syntagmatic patterns that connect nouns to the verbal actions th...
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ژورنال
عنوان ژورنال: Synlett
سال: 2010
ISSN: 0936-5214,1437-2096
DOI: 10.1055/s-0029-1219938