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排序方式: 共有94条查询结果,搜索用时 15 毫秒
1.
S. A. Bulgakova A. I. Mashin I. A. Kazantseva D. E. Kashtanov M. M. Jones G. S. Tsepkov A. V. Korobkov A. V. Nezhdanov 《Russian Journal of Applied Chemistry》2008,81(8):1446-1451
Polymer films with a dispersed liquid crystal were prepared by photopolymerization of (meth)acrylic monomers. The electrooptical properties of these films were studied. The influence exerted by the composition of the monomer mixture, cross-linking agents, and chain-transfer agent on the liquid crystal drop size and on the transmission of the polymer-liquid crystal films was examined. 相似文献
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Yu. D. Semchikov S. A. Bulgakova L. M. Mazanova 《Russian Journal of Applied Chemistry》2005,78(7):1166-1169
The polymerization of methyl methacrylate to high conversion in the presence of a series of disilanes as chain-transfer agents was studied, and the chain-transfer constants at low and high conversions were determined. The molecular-weight characteristics of the polymers were estimated by gel permeation chromatography. 相似文献
4.
Krayushkin M. M. Stoyanovich F. M. Zolotarskaya O. Yu. Yarovenko V. N. Bulgakova V. N. Zavarzin I. V. Martynkin A. Yu. 《Russian Chemical Bulletin》2002,51(11):2097-2099
A new approach to the synthesis of dithienothiophene was developed, and 1,2-bis(2,6-dimethyldithieno[3,2-b;2",3"-d]thiophen-3-yl)hexafluorocyclopent-1-ene was prepared. The latter compound is the first representative of photochromic dihetarylethenes with the fused tricyclic fragments linked through the perfluorocyclene bridge. 相似文献
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P. A. Zagorets G. P. Bulgakova T. G. Myasoedova 《Journal of Radioanalytical and Nuclear Chemistry》1979,51(2):345-354
The use of halogenated organic compounds under the effect of ionizing radiation requires a comprehensive knowledge of their
radiation stability. There is little experimental evidence on the radiolysis of fluorine-containing organic compounds in the
literature, while a theoretical generalization enabling one to predict the main radiolysis pathways is completely lacking.
This paper is concerned with the identification of stable radiolysis products of trichloromethyl-1,1,2-trifluoro-2,2-dichloroethyl
ether (C3F3Cl5 O), γ-irradiated separately and the extraction system based on tributyl phosphate. Practically all the C3F3Cl5O radiolysis products were identified with the aid of gas-liquid chromatography, GC-MS, IR, UV and NMR spectroscopy and elemental
analysis. Upon C3F3Cl5O radiolysis, the formation of CCl4, Cl2, COCl2, C2 Cl6, freons of various composition and long-chained ethers like CFCl2−CF2−O−CCl2−CCl3 takes place. The identification of radiolysis products allows to draw well-founded conclusions on the mechanism of C3F3Cl5O radiolysis, representing a wide class of chlorine- and fluorine-containing organic compounds. 相似文献
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The Rieche formylation of N-acyl-6-chloro-2,4-dimethoxyanilines proceeds at C5, while metallation occurs at C3. As a result, isomeric aldehydes were obtained, which were converted into stable nitrile oxides.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2606–2610, November, 1991. 相似文献