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Spectrophotometric Study of the Interaction of Pplatinum(IV) with New Derivatives of Azolidones 铂(IV)与新型唑酮衍生物相互作用的分光光度法研究
Chemistry and Chemical Technology Pub Date : 2020-06-15 DOI: 10.23939/chcht14.02.139
O. Tymoshuk, Lviv Ukraine Mefodiya St., L. Oleksiv, P. Rydchuk, T. Chaban, S. Tymoshuk, V. Matiychuk
{"title":"Spectrophotometric Study of the Interaction of Pplatinum(IV) with New Derivatives of Azolidones","authors":"O. Tymoshuk, Lviv Ukraine Mefodiya St., L. Oleksiv, P. Rydchuk, T. Chaban, S. Tymoshuk, V. Matiychuk","doi":"10.23939/chcht14.02.139","DOIUrl":"https://doi.org/10.23939/chcht14.02.139","url":null,"abstract":"The interaction of Pt(IV) ions with the new derivatives of azolidones by spectrophotometric method was investigated. The spectrophotometric method for the determination of Pt(IV) using 5-hydroxyimino-4-imino-1,3thiazolidine-2-one at pH 5.0 in acetate buffer medium was elaborated. The proposed method was tested by determination of Pt(IV) in model solutions and metallic alloy.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83840693","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: 2
Evaluation of Bis(imino)pyridine Iron Catalyst on Heterogeneous Ethylene Polymerization 双(亚胺)吡啶铁催化剂对乙烯非均相聚合的评价
Chemistry and Chemical Technology Pub Date : 2020-06-15 DOI: 10.23939/chcht14.02.185
S. B. Cordeiro, Maria Marques
{"title":"Evaluation of Bis(imino)pyridine Iron Catalyst on Heterogeneous Ethylene Polymerization","authors":"S. B. Cordeiro, Maria Marques","doi":"10.23939/chcht14.02.185","DOIUrl":"https://doi.org/10.23939/chcht14.02.185","url":null,"abstract":"This work deals with synthesis, characterization and evaluation of post-metallocene complexes based on silica-supported bis(imino)pyridine iron, containing amino groups in ethylene polymerizations. The reaction of these complexes and methylaluminoxane generated active species in heterogeneous ethylene polymerization. The absence of substituents at the orthoposition of the phenyl rings near the metal site was not compensated by the steric hindrance of the silica surface, negatively affecting the catalytic activity and the molar mass of the produced polymer. The catalyst C1, with the most bulkier ligand, presented the best performance, showing high catalytic activity not only in homogeneous system, but also in supported systems due to the chemical bond between the functionalized complex and the support surface, which led to polyethylene particles with good morphology, spherical tendency, filled pores and the decrease in bulk density compared to the particles produced through homogeneous catalyst.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78032989","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: 2
Catalytic Performance of Copper-Manganese Supported on Activated Carbon Synthesized by Deposition-Precipitation Method 沉积沉淀法合成活性炭负载铜锰的催化性能
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.032
Melody Kimi, Bibie Nur Syafiqah Safiuddin, S. Pang
{"title":"Catalytic Performance of Copper-Manganese Supported on Activated Carbon Synthesized by Deposition-Precipitation Method","authors":"Melody Kimi, Bibie Nur Syafiqah Safiuddin, S. Pang","doi":"10.23939/chcht14.01.032","DOIUrl":"https://doi.org/10.23939/chcht14.01.032","url":null,"abstract":"CuMnx/activated carbon (AC, x = 0.1, 0.2, 0.5 and 1) nanoparticles were prepared by depositionprecipitation method. The catalytic performance of CuMnx/AC catalysts were studied for the oxidation of benzyl alcohol to benzaldehyde. The molar ratio of Mn plays an important role in the catalytic performances. The optimum amount of Mn is 0.1 with the highest benzyl alcohol conversion of 63 %.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91531043","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: 1
The Intercalation Behaviour and Physico-Chemical Characterisation of Novel Intercalated Nanocomposite from Zinc/Aluminium Layered Double Hydroxides and Broadleaf Herbicide Clopyralid 锌/铝层状双氢氧化物与宽叶除草剂氯吡酯新型插层纳米复合材料的插层行为及物理化学表征
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.038
S. Sharif, N. Hashim, I. Isa, M. Mamat, N. M. Ali, S. A. Bakar, M. Hussein, S. Mustafar, Materials Synthesis
{"title":"The Intercalation Behaviour and Physico-Chemical Characterisation of Novel Intercalated Nanocomposite from Zinc/Aluminium Layered Double Hydroxides and Broadleaf Herbicide Clopyralid","authors":"S. Sharif, N. Hashim, I. Isa, M. Mamat, N. M. Ali, S. A. Bakar, M. Hussein, S. Mustafar, Materials Synthesis","doi":"10.23939/chcht14.01.038","DOIUrl":"https://doi.org/10.23939/chcht14.01.038","url":null,"abstract":"This study reports on the preparation of novel zinc/aluminium layered double hydroxide intercalated clopyralid (Zn/Al-LDH-CP) nanocomposites fabricated via co-precipitation. An expansion of the interlayer gallery of Zn/Al-LDH for the accommodation of clopyralid was observed from the powder X-ray diffraction (PXRD) pattern, confirming the occurrence of intercalation. The results from Fourier transform infrared and elemental analysis were consistent with those from PXRD, thus supporting the intercalation of clopyralid. The thermal studies showed that the nanocomposite had better thermal stability compared to pristine clopyralid. Based on these data, the chemical formula of the nanocomposite was proposed as [Zn0.75Al0.25(OH)2][C5H2Cl2NCOO]0.250.67H2O, and the percentage loading of clopyralid in the interlayer gallery of Zn/Al-LDH was calculated to be 25.39 %. These characterisation results indicate a very promising future for this novel Zn/Al-LDH-CP nanocomposite.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74265352","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: 4
The Non-Sodium Nickel Hydroxycarbonate for Nanosized Catalysts 非羟基碳酸镍钠纳米催化剂的研究
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.007
O. Korchuganova, E. Tantsiura, M. Ozheredova, I. Afonina
{"title":"The Non-Sodium Nickel Hydroxycarbonate for Nanosized Catalysts","authors":"O. Korchuganova, E. Tantsiura, M. Ozheredova, I. Afonina","doi":"10.23939/chcht14.01.007","DOIUrl":"https://doi.org/10.23939/chcht14.01.007","url":null,"abstract":"The samples of non-sodium nickel hydroxycarbonate for nanosized catalysts have been obtained and investigated. The ratio of crystalline water, the amount of nickel hydroxide and carbonate has been calculated. By the X-ray analysis of obtained nickel oxide the crystallite size of 12–13 nm has been determined. The samples of catalysts provided a high specific surface.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80508860","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: 1
Thermooxidative Regeneration of Used Mineral Motor Oils 废旧矿物油的热氧化再生
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.129
B. Korchak, O. Grynyshyn, T. Chervinskyy, P. Shapoval, A. Nagurskyy
{"title":"Thermooxidative Regeneration of Used Mineral Motor Oils","authors":"B. Korchak, O. Grynyshyn, T. Chervinskyy, P. Shapoval, A. Nagurskyy","doi":"10.23939/chcht14.01.129","DOIUrl":"https://doi.org/10.23939/chcht14.01.129","url":null,"abstract":"The physico-chemical properties and group composition of the used mineral motor oils M-10DM and NORMAL 15W40, as well as the fractions obtained as a result of their thermooxidative regeneration have been studied. The results of IR-spectroscopic and X-ray fluorescence analysis of used oils and fractions obtained during thermooxidative regeneration are presented. The changes in the composition and properties of regenerated oils are described.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74462725","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: 5
Analysis of the Possibility of the Polymeric Aggregates Use in the Design of Building Block 聚合骨料在建筑砌块设计中应用的可能性分析
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.116
Rodríguez García José, Armendáriz Mireles Eddie, L. Roque, Rocha R. Enrique, López García Ricardo, Jaime Hinojosa Torres
{"title":"Analysis of the Possibility of the Polymeric Aggregates Use in the Design of Building Block","authors":"Rodríguez García José, Armendáriz Mireles Eddie, L. Roque, Rocha R. Enrique, López García Ricardo, Jaime Hinojosa Torres","doi":"10.23939/chcht14.01.116","DOIUrl":"https://doi.org/10.23939/chcht14.01.116","url":null,"abstract":"Particulate composite was prepared from a mixture of cement, gravel and water with additions of a polyepoxide and/or expanded polystyrene in powder. For consolidation, each mixture was poured into a mold, remaining for a short period and then removed. For complete solidification the specimens were cured with water during the final stage. The weight, compressive strength and thermal conductivity of the composite were determined.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88792179","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
Development of Strengthened Bioactive Calcium Phosphate-Silicate Glass Ceramics for Bone Implants 增强生物活性磷酸钙-硅酸盐玻璃陶瓷骨植入物的研制
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.109
O. Savvova, V. Shymon, O. Fesenko, O. Babich, S. Alfeldii
{"title":"Development of Strengthened Bioactive Calcium Phosphate-Silicate Glass Ceramics for Bone Implants","authors":"O. Savvova, V. Shymon, O. Fesenko, O. Babich, S. Alfeldii","doi":"10.23939/chcht14.01.109","DOIUrl":"https://doi.org/10.23939/chcht14.01.109","url":null,"abstract":"Cumulative experience in the field of development of bioactive glass ceramics for bone implants and methods of strengthening thereof have been analyzed. Compositions were selected and model glasses were synthesized, the relationship between viscosity and crystallization ability of glass ceramics has been studied. Composite materials based on the glass ceramics and zirconia have been synthesized, their mechanical properties studied, and feasibility of their use in the creation of bone implants has been established.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89875749","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: 1
Structure and Dynamics of Pyrene-Labeled Poly(acrylic acid): Molecular Dynamics Simulation Study 芘标记聚丙烯酸的结构与动力学:分子动力学模拟研究
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.076
M. V. Slavgorodska, A. Kyrychenko
{"title":"Structure and Dynamics of Pyrene-Labeled Poly(acrylic acid): Molecular Dynamics Simulation Study","authors":"M. V. Slavgorodska, A. Kyrychenko","doi":"10.23939/chcht14.01.076","DOIUrl":"https://doi.org/10.23939/chcht14.01.076","url":null,"abstract":"An atomistic model for molecular dynamics (MD) simulations of the single chain poly(acrylic acid) (PAA), terminally substituted with two pyrene moieties, was developed. MD simulations of the structure and conformational dynamics of pyrene-labeled PAA for a varying dissociation degree (α) of the COOH group revealed that the attachment of pyrene dyes to PAA alters significantly its conformational behavior. At acidic pH (α = 0), the PAA chain collapsed into the random coil conformation, so that the two pyrene moieties formed the stable π-π stacking structure. However, at basic pH (α = 1), the PAA chain was expanded and stretched facing the pyrene dyes apart into aqueous solution.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77298455","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: 3
Mixed Ligand Complex of Lanthanum(III) and Alizarine-Complexone with Fluoride in Micellar Medium for Spectrophotometric Determination of Total Fluorine 胶束介质中镧(III)与茜草嗪-氟络合物的混合配体分光光度法测定总氟
Chemistry and Chemical Technology Pub Date : 2020-02-20 DOI: 10.23939/chcht14.01.001
A. Chebotarev, A. Demchuk, K. Bevziuk, D. Snigur
{"title":"Mixed Ligand Complex of Lanthanum(III) and Alizarine-Complexone with Fluoride in Micellar Medium for Spectrophotometric Determination of Total Fluorine","authors":"A. Chebotarev, A. Demchuk, K. Bevziuk, D. Snigur","doi":"10.23939/chcht14.01.001","DOIUrl":"https://doi.org/10.23939/chcht14.01.001","url":null,"abstract":"A technique for direct spectrophotometric determination of total fluorine in products for oral hygiene using a mixed ligand complex La(III) and alizarincomplexone with fluoride ion in the presence of a non-ionic surfactant has been developed. A number of complexes of different stoichiometry formed in the system has been found. The La:alizarin-complexone:F = 1:2:1 complex was shown to be used as an analytical form. The complex in the presence of Tween 80 is characterized by the molar absorptivity ε620 = 11000 mol∙dm∙cm. The calibration curve is linear in the concentration range of fluoride ions 0.06–0.5 μg/ml. A simple, rapid, sensitive, and green procedure for the spectrophotometric determination of F using lanthanum alizarin-complexonate in the presence of Tween 80 was proposed and this technique was tested on samples of toothpastes and mouth rinses.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88687714","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: 2
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