Borate Photoinitiators
نویسندگان
چکیده
منابع مشابه
Cage Effect Dynamics under Photolysis of Photoinitiators
Efficiency of photoinitiators (PI) depends upon quantum yield of photogeneration of reactive free radicals and upon cage effect value. Only radicals that escape the cage can initiate free radical polymerization. The modern concept of the cage effect is presented. Dependencies of the cage effect upon increasing of solvent viscosity in the course of polymerization are discussed. Cage effect dynam...
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Thioxanthone (TX) and their derivatives are bimolecular Type II photoinitiators for free radical polymerization. Photoinitiation by these compounds is based on the reaction of their triplet excited states with a hydrogen donor thereby producing an initiating radical. On the other hand, they suffer from diffusion controlled limitation of reactivity and from deactivation by back electron transfer...
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N-Methylpyridinium esters derivatives of 2-methylbenzothiazole hemicyanine dyes photoinitiators/photosensitizers derived from N-propyl-3-[N-2-methylbenzothiazolo]-4-pyridyno phenylacetic acid ester diiodide and N-propyl-3-[N-2-me]thylbenzothiazolo]-4-pyridino diphenylacetic acid ester diiodide were synthesized and proposed as new photoinitiators of polymerization of 2-ethyl-(2-hydroxymethyl)-1,...
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Evidence for an “RNA world,” an episode of life on Earth during which RNA was the only genetically encoded component of biological catalysts, is found in the ribosome (1), catalytic RNA molecules (2), and contemporary metabolism (3). That RNA could form spontaneously and persist under prebiotic conditions has been doubted, however (4, 5). Ribose and its sister pentoses (arabinose, xylose, and l...
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The title compound, KZnB(3)O(6) contains a remarkable [B(6)O(12)](6-) group ( symmetry) formed by two rings linked by edge-sharing BO(4) tetra-hedra, a feature that has only been observed previously under high pressure conditions. These borate groups are connected through distorted ZnO(4) tetra-hedra in edge-shared pairs ( symmetry), forming a three-dimensional network whose cavities are filled...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Colour Material
سال: 2000
ISSN: 0010-180X
DOI: 10.4011/shikizai1937.73.624