SU703560A1 - Cholesteric composition - Google Patents
Cholesteric compositionInfo
- Publication number
- SU703560A1 SU703560A1 SU772537717A SU2537717A SU703560A1 SU 703560 A1 SU703560 A1 SU 703560A1 SU 772537717 A SU772537717 A SU 772537717A SU 2537717 A SU2537717 A SU 2537717A SU 703560 A1 SU703560 A1 SU 703560A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- composition
- cholesteryl
- proposed
- cholesteric
- nitrogen
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/36—Steroidal liquid crystal compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
Description
(54) ХОЛЕСТЕРИЧЕСКИЙ СОСТАВ(54) CHOLESTERIC COMPOSITION
Изобретение относитс к холестерическому составу, который может быть использован дл контрол предельно допустимой концентрации двуокибй asbта в воздушной смеси. Холестерические жидкие кристаллы (ХЖК) селективно отражают свет в видимой области спектра, вследствие чего они окрашены. Цвет ХКК (т,е, „а-. селективного отражени ) чувствителен к различного рода воздействи м - механическим и электрическим, к terthepai туре, к парам органических вёщёств и газам и т.д. Это свойство ХЖК нашло широкое -практическое исполйзование . . Известен холестёрический состав 1 на основе холестерилпеларгоната и холестерилолеилкарбоната (60:40), торый дополнительно содержит Звес.% олеиновой кислоты и обладает довольно высокой чувствительностью к примеси NOj в воздухе (б частей NOj на 1 миллион частей воздуха). СущественнЕЛМ недостатком такого холестеричёского состава вл етс высока чувствительность к температуре: X д селективного отражени измен етс от 750 до 400 нм при нагреве на 1°С - от 27 до 28°.С.. По этой причине состав практически невозможно использовать в массовых анализах, поскольку требуетс строжайшее термостатйрЬвайие . Известен мало чувствительный к температуре холестёрический состав (холестерилпеларгонат 80, холестерилолеилкарбонах 5 и холестерилхлорид )5%) 2Г. Однако этот состав обладает низкой чувствительностью к N0 , котора практически не зависит от изменени соотношени компонентов смеси (см. табл, 1)..This invention relates to a cholesteric composition that can be used to control the maximum allowable concentration of carbon dioxide in an air mixture. Cholesteric liquid crystals (CLC) selectively reflect light in the visible spectrum, as a result of which they are colored. The color of the HCC (t, e, a. A., Selective reflection) is sensitive to various kinds of effects - mechanical and electrical, to the terthepai tour, to pairs of organic substances and gases, etc. This property of CLC has found a wide practical application. . The cholesteric composition 1 is known on the basis of cholesteryl propellarate and cholesteryl oleyl carbonate (60:40), which additionally contains Zves.% Oleic acid and has a rather high sensitivity to NOj in air (b parts of NOj per 1 million parts of air). A significant disadvantage of this cholesteric composition is its high sensitivity to temperature: X d of selective reflection varies from 750 to 400 nm when heated by 1 ° C - from 27 to 28 ° C. For this reason, the composition is almost impossible to use in mass analysis. since it requires the strictest thermostat control. The cholesteric composition (cholesteryl pellargonate 80, cholesteryl oleylcarbones 5 and cholesteryl chloride 5%) 2G is known little temperature-sensitive. However, this composition has a low sensitivity to N0, which practically does not depend on the change in the ratio of the mixture components (see Table 1).
703560 «а)(. Примечание: ного от ческой в прису С мг/л Целью изобретени вл етс разработка такого холестерического состава, который при сохранении малой чувствительности к Температуре обладает 25 повышенной чувствительностью к дву-. окиси азота и позвол ет определ ть предельно допустимую концентрацию двуокиси азота в воздухе. . , Поставленна цель достигаетс с по-зо мощью холестерического состава, .. включающего холёстерилпеларгонат, холёстерилолеилкарбонат, холестерилхлорид , отличительна особенность которого состоит в том, что он дополнительно содержит дифениламин, при этом компоненты берут с следующих соотношени х, вес.%: « ««:Холёстерилолеилкарбонат 4,0-5,0 Холестерилхлорид 12,0-15,5 Дифениламин 7,0-8,0 Холёстерилпеларгонат Остальное Предложенный холёстерический состав практически не чувствителен к температуре от .10 до и мало чув ствителен от 30 до 40°С, При различных соотношени х компонентов указанный составспособен также фикриро вать предельно допустимую концентрацию NOg в воздухе, равную 0,005 мг/л или 2,5 части N02 нз 1миллион частей воздуха . . ...-.- -. . 703560 "a) (. Note: from a mg / l inaccumulative object. The aim of the invention is to develop such a cholesteric composition which, while maintaining low sensitivity to temperature, has 25 hypersensitivity to dimeric oxide and allows determining the maximum permissible concentration of nitrogen dioxide in the air. The goal is achieved with the cholesteric composition, ... including cholesteryl pellargonate, cholesteryl oleyl carbonate, cholesteryl chloride, the distinctive feature of which is additionally contains diphenylamine, with the components taken from the following ratios, wt%: "" ": Cholesteryl oleylcarbonate 4.0-5.0 Cholesteryl chloride 12.0-15.5 Diphenylamine 7.0-8.0 Cholesterylpelargonate Other Cholesterol proposed practically insensitive to temperature from .10 to and little sensible from 30 to 40 ° C. With different ratios of the components, this component is also capable of fixing the maximum permissible concentration of NOg in air equal to 0.005 mg / l or 2.5 parts of N02 nz 1 million parts of air. . ...-.- -. .
Пример 1. Слой хбйёстёрйчекого состава помещают в термостатированную кювету спектрофотометра СФ-14, снабженную устройством дл ввода и вывода смеси воздуха с двуПредлагае1 й 2,0 10Example 1. A layer of hbyestory composition is placed in a thermostated cuvette of an SF-14 spectrophotometer, equipped with a device for inlet and outlet of an air mixture with a twofold 2.0 10
.: ;: r:i rJ-- :; a -425- :.:;: r: i rJ--:; a -425-:
Т a б л и ц aT a b l and c a
При концентрации NOg 14 мг/л чувствительность известного состава 2,8, предлаг аёмыХ:I-II и II-IB нмЛ мгПримеры подтверждают более высокую чувртвительность предложенного состав по срав нению с известным и зависимость ее от соотношени компо-. н ентов. . :At a concentration of NOg of 14 mg / l, the sensitivity of the known composition is 2.8, the proposed values of IX: I-II and II-IB nmL mg. Examples confirm the higher sensitivity of the proposed composition compared to the known and its dependence on the ratio of composites. ntovy. . :
В табл. 3 представлена чувствительйость известного и предлагаемого холестерического сортава. к малым . концентр.ацй м т в воздухе, включа предельно допустимую. Использован предлагаемый состав, вес.%: ХОК 4,6, ХП 74,0, ХСе 13,9, ДфА 7,5.In tab. 3 shows the sensitivity of the known and proposed cholesteric variety. to small. concentrated mt in the air, including the maximum permissible. Used the proposed composition, wt.%: HOK 4,6, CP 74,0, XSE 13.9, DFA 7.5.
:i,6 -10: i, 6 -10
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772537717A SU703560A1 (en) | 1977-11-01 | 1977-11-01 | Cholesteric composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772537717A SU703560A1 (en) | 1977-11-01 | 1977-11-01 | Cholesteric composition |
Publications (1)
Publication Number | Publication Date |
---|---|
SU703560A1 true SU703560A1 (en) | 1979-12-15 |
Family
ID=20730508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772537717A SU703560A1 (en) | 1977-11-01 | 1977-11-01 | Cholesteric composition |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU703560A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4469452A (en) * | 1982-04-14 | 1984-09-04 | Whitman Medical Corporation | Indicator system and means for irreversibly recording a temperature limit |
US4999348A (en) * | 1987-12-11 | 1991-03-12 | Estee Lauder Inc. | Liquid crystal containing cosmetic and pharmaceutical compositions and methods for utilizing such compositions |
-
1977
- 1977-11-01 SU SU772537717A patent/SU703560A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4469452A (en) * | 1982-04-14 | 1984-09-04 | Whitman Medical Corporation | Indicator system and means for irreversibly recording a temperature limit |
US4999348A (en) * | 1987-12-11 | 1991-03-12 | Estee Lauder Inc. | Liquid crystal containing cosmetic and pharmaceutical compositions and methods for utilizing such compositions |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Yonetani et al. | On the ternary complex of liver alcohol dehydrogenase with reduced coenzyme and isobutyramide. Effect of p-chloromercuriphenyl sulfonate and stability of the complex | |
ATE26026T1 (en) | LIGHT SENSITIVE COMPOSITIONS AND PRODUCTS. | |
Zhou et al. | Determination of total protein content in gelatin solutions with the Lowry or Biuret assay | |
Rhodes et al. | Spectrophotometric determination of trypsin and trypsin inhibitors | |
Searcy et al. | A study of the specificity of the Berthelot colour reaction | |
SU703560A1 (en) | Cholesteric composition | |
Wananukul et al. | Cutaneous manifestations of childhood systemic lupus erythematosus | |
BR112016019822B1 (en) | METHOD FOR DETERMINING THE AMOUNT OF GLYCOSYLATED HEMOGLOBIN (HBA1C) IN A SAMPLE AND REAGENT KIT | |
Lundin et al. | Sensitive measurement of flash induced photophosphorylation in bacterial chromatophores by firefly luciferase | |
Bayfield | Colorimetric determination of vitamin A with trichloroacetic acid | |
Zarlengo et al. | Threonine Deaminase from Salmonella typhimurium: II. The subunit structure | |
DK1618377T3 (en) | Chromogenic substrate with PH indicator dye | |
Hartshorn et al. | A denaturation-induced proton-uptake study of horse ferricytochrome c | |
DE69128150D1 (en) | DIAGNOSTIC TEST | |
Barbosa et al. | A comparative study of some hydroxyanthraquinones as acid-base indicators | |
BRPI0400012A (en) | Methods and systems for measuring and controlling percent stoichiometric oxidizer in an incinerator | |
Fontana et al. | A fluorimetric study of the role of calcium ions in the stability of thermolysin | |
BRPI0504263A (en) | methods and systems for determining and controlling percent stoichiometric oxidizer in an incinerator | |
US20050266579A1 (en) | Assay system with in situ formation of diazo reagent | |
Chen | Fluorescence properties of fluorescamine-protein conjugates | |
US3622275A (en) | Flame photometric method for analyzing body fluids | |
Saito et al. | A sensitive spectrofluorimetric method for the determination of human serum albumin with chrome-azurol S | |
Chiccarelli et al. | The Fluorometric Assay for Chlortetracycline HCl and the Determination of Tetracycline HC1 in Chlortetracycline HCl | |
Handley et al. | Raised serum fructosamine concentration caused by IgA paraproteinaemia | |
KR101771848B1 (en) | Device for analyzing a sample concentration using an interference of light and method for analyzing a sample concentration |