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Study of alcoholic-water extracts of Thymus Vulgaris obtained by ultrasonic extraction method 超声提取法提取麝香醇水提取物的研究
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.083
А. О. Kyrychuk, Y. М. Semenchuk, M. Kurka, N. Stadnytska
{"title":"Study of alcoholic-water extracts of Thymus Vulgaris obtained by ultrasonic extraction method","authors":"А. О. Kyrychuk, Y. М. Semenchuk, M. Kurka, N. Stadnytska","doi":"10.23939/ctas2023.01.083","DOIUrl":"https://doi.org/10.23939/ctas2023.01.083","url":null,"abstract":"Alcohol-water extracts of Thymus vulgaris have obtained by ultrasonic extraction method for different times extraction. The obtained extracts have been tested for the quantitative content of extractive substances, phenolic compounds and flavonoids and for the presence of antioxidant activity. The best studied indicators were found in extract obtained by ultrasound extraction for 40 minutes (content of extractive substances 25 mg / ml, sum of polyphenolic compounds 30 mg / ml, flavonoids content 45 mg / ml).","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75491051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research of the influence of vibroactivated lime on the hydration of portland cement and its hardening 振动活化石灰对硅酸盐水泥水化及硬化影响的研究
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.032
Z. Borovets, I. Lutsyuk, A. Zahrai
{"title":"Research of the influence of vibroactivated lime on the hydration of portland cement and its hardening","authors":"Z. Borovets, I. Lutsyuk, A. Zahrai","doi":"10.23939/ctas2023.01.032","DOIUrl":"https://doi.org/10.23939/ctas2023.01.032","url":null,"abstract":"The influence of vibro-activated lime additive on the hydration processes of Portland cement and the nature of changes in the strength of cement stone at different stages of its hardening were studied. It was established that long-term storage of vibro-activated lime in a wet state does not weaken its properties as a modifying additive. The methods of determining the heat release of cement dough during hardening and X-ray phase analysis show that the addition of vibro- activated lime at the initial stages of hardening accelerates the physicochemical processes of hydration of calcium silicates of clinker minerals.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84016333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Еlectrically conductive composite materials based on polyvinylpyrrolidone copolymers with combined fillers Еlectrically基于聚乙烯吡咯烷酮共聚物和复合填料的导电复合材料
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.137
O. Grytsenko, Ľ. Dulebová, N. Baran, T. Grytsenko, P. Voloshkevych
{"title":"Еlectrically conductive composite materials based on polyvinylpyrrolidone copolymers with combined fillers","authors":"O. Grytsenko, Ľ. Dulebová, N. Baran, T. Grytsenko, P. Voloshkevych","doi":"10.23939/ctas2023.01.137","DOIUrl":"https://doi.org/10.23939/ctas2023.01.137","url":null,"abstract":"Composite materials based on copolymers of polyvinylpyrrolidone and 2-hydroxyethylmethacrylate with combined fillers consisting of metal powders and graphite were obtained by the method of polymerization filling. The developed materials are characterized by sufficiently high physical and mechanical properties, increased electrical conductivity and water content. It was established that the addition of graphite to metal-filled copolymers increases the sensitivity of the electrical resistance of composites to moisture changes.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86414697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermodynamic properties of 2-methyl-5-phenylfuran-3-carboxylic 2-甲基-5-苯基呋喃-3-羧酸的热力学性质
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.008
R. R. Kostiuk, Y. Horak, N. Velychkivska, I. Sobechko, D. B. Pyshna, V. Dibrivnyi
{"title":"Thermodynamic properties of 2-methyl-5-phenylfuran-3-carboxylic","authors":"R. R. Kostiuk, Y. Horak, N. Velychkivska, I. Sobechko, D. B. Pyshna, V. Dibrivnyi","doi":"10.23939/ctas2023.01.008","DOIUrl":"https://doi.org/10.23939/ctas2023.01.008","url":null,"abstract":"The temperature dependence of the saturated vapor pressure and the combustion energy of 2-methyl-5-phenylfuran-3-carboxylic acid were determined by experimental methods. Based on the obtained data, the values of the enthalpies of combustion and formation in the condensed state were calculated. The enthalpy of sublimation was recalculated to 298K. The additive Benson scheme is supplemented with new fragments for calculating the enthalpies of formation in the gaseous state. The possibility of using the Joback method to calculate the enthalpies of formation of aryl furans in the gaseous state is analyzed.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84851967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Total phenolic and flavonoid content, antioxidant activity of thalictrum foetidum 黄芩总酚、总黄酮含量、抗氧化活性
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.088
U. Zhuravel, R. Konechna, І. Jasicka-Misiak
{"title":"Total phenolic and flavonoid content, antioxidant activity of thalictrum foetidum","authors":"U. Zhuravel, R. Konechna, І. Jasicka-Misiak","doi":"10.23939/ctas2023.01.088","DOIUrl":"https://doi.org/10.23939/ctas2023.01.088","url":null,"abstract":"The objective of the present study was to determine the total content of phenolics and flavonoids in extracts of Thalictrum foetidum. The total phenolic content was estimated spectrophotometrically using Folin Ciocalteu method. The total content of flavonoids was determined by spectrophotometric analysis, based on the measurement of the absorption of the complex of aluminum chloride with flavonoids. The antioxidant effects of the extracts Thalictrum foetidum were investigated.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76448651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
С9 fraction oligomerization with the use 2-(tert-butylperoxymethylamino)acetic acid С9用2-(叔丁基过氧甲胺)乙酸进行低聚反应
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.054
R. Subtelnyi, Y. Zhuravskyi, O. Orobchuk, B. Dzinyak
{"title":"С9 fraction oligomerization with the use 2-(tert-butylperoxymethylamino)acetic acid","authors":"R. Subtelnyi, Y. Zhuravskyi, O. Orobchuk, B. Dzinyak","doi":"10.23939/ctas2023.01.054","DOIUrl":"https://doi.org/10.23939/ctas2023.01.054","url":null,"abstract":"The oligomerization in solution and suspension oligomerization of the fraction C9 of liquid by-products of pyrolysis of diesel fuel is initiated by 2- (third-butylperoxymethylamineo) acetate acid have been studied. The nature of the effect of oligomerization, the concentration of the initiator, the temperature and duration of the reaction to the output and the physicochemical characteristics of the obtained oligomers were clarified. The optimal technological parameters of the process of oligomerization of the fraction C9 were selected. Relatively peculiarities of the course of suspension oligomerization and oligomerization in the solution of the fraction C9.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81618480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Рolylactide composite materials possesing fungibactericidal properties Рolylactide具有杀菌性能的复合材料
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.131
G. Dudok, N. Semenyuk, Y. Parfonov
{"title":"Рolylactide composite materials possesing fungibactericidal properties","authors":"G. Dudok, N. Semenyuk, Y. Parfonov","doi":"10.23939/ctas2023.01.131","DOIUrl":"https://doi.org/10.23939/ctas2023.01.131","url":null,"abstract":"The regularities of obtaining polylactide film composite materials with simultaneous silver nanoparticles formation were researched. The influence of the nature of polylactide and its structure (amorphous and amorphous-crystalline), of the glycerin plasticizer on the solvent evaporationkinetics  was determined. To give polylactide composites fungicidal properties, the silver reduction reaction by the interaction of argentum salts with polyvinylpyrrolidone was applied. A main technological scheme for obtaining films based on polylactide with fungicidal properties is proposed. Above mentioned provides effective practical usage of the films as packaging materials for food products and medicines.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89343295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Рhysico-chemical interactions in plasticized starch materials Рhysico-chemical在增塑淀粉材料中的相互作用
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.124
A. Masyuk, D. Kechur, D. B. Kysil, B. Kulish, V. Levytskyi
{"title":"Рhysico-chemical interactions in plasticized starch materials","authors":"A. Masyuk, D. Kechur, D. B. Kysil, B. Kulish, V. Levytskyi","doi":"10.23939/ctas2023.01.124","DOIUrl":"https://doi.org/10.23939/ctas2023.01.124","url":null,"abstract":"The physicochemical patterns of interactions in the starch-glycerol-epoxidized soybean oil system were studied. On the basis of rheological curves, the effect of plasticizers on the viscosity of glycerin-starch systems was revealed, depending on the shear rate, time of exposure at temperature, and the nature of starch. The effect of epoxidized soybean oil on the viscosity of glycerin-moist starch systems was revealed. On the basis of IR spectroscopic studies and refractive index values, the existence of interactions between the system components was confirmed. The influence of the nature of the plasticizer on the ability to wet the surface of the plasticized starch was determined using the marginal wetting angle.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88344807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Тhe technology basis of diclofenac substance production Тhe双氯芬酸物质生产技术基础
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.075
M. Stasevych, I. Buchkevych, M. Y. Dronik
{"title":"Тhe technology basis of diclofenac substance production","authors":"M. Stasevych, I. Buchkevych, M. Y. Dronik","doi":"10.23939/ctas2023.01.075","DOIUrl":"https://doi.org/10.23939/ctas2023.01.075","url":null,"abstract":"The basis of the production technology of the diclofenac substance, which consists of five main technological stages, is justified and proposed. The proposed technological aspects of diclofenac substance production allow obtaining the target product with a total yield of 61%. Material calculations were carried out to obtain 1 ton of the final diclofenac substance. The numbers of necessary technological equipment are selected, and a basic technological scheme for the production of diclofenac is proposed.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73377283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Іons composition of mash water and their influence on beer quality Іons醪水的组成及其对啤酒品质的影响
Chemistry, Technology and Application of Substances Pub Date : 2023-06-01 DOI: 10.23939/ctas2023.01.045
А. Ludyn
{"title":"Іons composition of mash water and their influence on beer quality","authors":"А. Ludyn","doi":"10.23939/ctas2023.01.045","DOIUrl":"https://doi.org/10.23939/ctas2023.01.045","url":null,"abstract":"The water obtained by reverse osmosis was studied and the method of regulating the composition of its ions, necessary for the use of this water in the mashing process in order to obtain high-quality beer, was considered. The influence of mash water ions on beer quality indicators was studied. It was found that the concentrations of individual ions in water have the greatest effect on the organoleptic parameters of the finished drink and especially on the hop bitterness. It was studied that the increase in the ratio of cations Ca2+/Na+ and sulfates and chlorides SO42-/Cl- in mash water has a positive effect on the organoleptic and quality parameters of beer.","PeriodicalId":9808,"journal":{"name":"Chemistry, Technology and Application of Substances","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81249688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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