Epichlorohydrin-Based Polyfunctional Ion Exchangers

Ergozhin, E. E.; Chalov, T. K.; Rozhkova, A. G.; Iskakova, R. A.

doi:10.1007/s11167-005-0569-4

Cited by 3 publications

(3 citation statements)

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“…the PVP-Fe 3+ system. It is known that transition metal ions, when interacting with polymers, may not realize their maximum coordination number, since the ions of these metals can be coordinated to saturate with anionic acids or solvent molecules [12]. In turn, steric repulsion between large ligands in volume and electrostatic mutual repulsion of anion ligands when they are replaced by water molecules at a positively charged metal ion can also inhibit the coordination of additional ligands [13].…”

Section: Results and Their Discussionmentioning

confidence: 99%

Studying the Composition of Complexes on the Basis of Palladium(ii), Copper(ii), Iron(iii) Chlorides and Polyvinylpyrrolidone

Akbayeva¹,

Seilkhanova²,

Bakirova³

et al. 2019

OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHST

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News of the Academy of sciences of the Republic of Kazakhstan 2 NAS RK is pleased to announce that News of NAS RK. Series of chemistry and technologies scientific journal has been accepted for indexing in the Emerging Sources Citation Index, a new edition of Web of Science. Content in this index is under consideration by Clarivate Analytics to be accepted in the Science Citation Index Expanded, the Social Sciences Citation Index, and the Arts & Humanities Citation Index. The quality and depth of content Web of Science offers to researchers, authors, publishers, and institutions sets it apart from other research databases. The inclusion of News of NAS RK. Series of chemistry and technologies in the Emerging Sources Citation Index demonstrates our dedication to providing the most relevant and influential content of chemical sciences to our community. Қазақстан Республикасы Ұлттық ғылым академиясы "ҚР ҰҒА Хабарлары. Химия және технология сериясы" ғылыми журналының Web of Science-тің жаңаланған нұсқасы Emerging Sources Citation Index-те индекстелуге қабылданғанын хабарлайды. Бұл индекстелу барысында Clarivate Analytics компаниясы журналды одан әрі the Science Citation Index Expanded, the Social Sciences Citation Index және the Arts & Humanities Citation Index-ке қабылдау мәселесін қарастыруда. Webof Science зерттеушілер, авторлар, баспашылар мен мекемелерге контент тереңдігі мен сапасын ұсынады. ҚР ҰҒА Хабарлары. Химия және технология сериясы Emerging Sources Citation Index-ке енуі біздің қоғамдастық үшін ең өзекті және беделді химиялық ғылымдар бойынша контентке адалдығымызды білдіреді. НАН РК сообщает, что научный журнал «Известия НАН РК. Серия химии и технологий» был принят для индексирования в Emerging Sources Citation Index, обновленной версии Web of Science. Содержание в этом индексировании находится в стадии рассмотрения компанией Clarivate Analytics для дальнейшего принятия журнала в the Science Citation Index Expanded, the Social Sciences Citation Index и the Arts & Humanities Citation Index. Web of Science предлагает качество и глубину контента для исследователей, авторов, издателей и учреждений. Включение Известия НАН РК в Emerging Sources Citation Index демонстрирует нашу приверженность к наиболее актуальному и влиятельному контенту по химическим наукам для нашего сообщества.

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Section: Results and Their Discussionmentioning

confidence: 99%

Studying the Composition of Complexes on the Basis of Palladium(ii), Copper(ii), Iron(iii) Chlorides and Polyvinylpyrrolidone

Akbayeva¹,

Seilkhanova²,

Bakirova³

et al. 2019

OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHST

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“…The IR spectra of the PEG, PVP ligands and Cu (II)-PEG and Cu (II)-PVP complexes were recorded on a JASCO FT IR-4100 type A instrument in the range 4000-450 cm -1 . The stability constants of the PMC were calculated on the basis of the modified Bjerrum's method [19,20]. The SEM images were obtained with a JSM-6490LA Jeol instrument.…”

Section: Experimental Partmentioning

confidence: 99%

Synthesis and characterization of copper (II) chloride complexes with non-ionic polymers PEG and PVP

Bakirova¹,

Smagulova²,

Akbayeva³

2022

Chem. J. of Kaz.

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The compositions of polymer-metal complexes based on copper (II) chloride and polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) have been determined by the potentiometric method. Based on the experimental data, obtained to determine the composition of the complex, the titration curves have been plotted, and the optimal molar ratios of the reacting components have been found. The Bjerrum’s formation functions have been calculated. The obtained data indicate the formation of the polymer copper complexes, in which there are two PEG mono-links per two copper ions-complexing agent (1:2 in the Cu2+-PEG), and in the case of PVP, there are three ones (1:3 in the Cu2+-PVP). On the basis of thermodynamic constants of stability, using isotherm equations and isobars of Vant Hoff and Gibbs, Gibbs’ energy (DrG0), enthalpy (DrH0) and entropy (DrS0) changes have been calculated. The complexation process in the Cu2+-PEG and Cu2+-PEG systems is characterized by negative Gibbs’ energies, which indicates a spontaneous occurrence of the polymer-metal complex (PMC) formation process in these systems. In contrast, the complexation of copper ions with PEG is accompanied by the large positive enthalpy values, which indicate that the interaction of Cu2+ with the functional groups of the polymer is energetically unfavorable. The entropy values are positive, which can be explained by the dehydration of ions and functional groups, acting as ligands and a chelating effect during complexation, when one ion binds to several functional groups. The structure of the synthesized complexes has been investigated by IR spectroscopy.

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“…The increased activity of oxirane groups is confi rmed by their considerable proneness to curing reactions even under normal conditions in the presence of agents of an acidic or basic nature with the formation of three-dimensionally crosslinked or branched polymers possessing ion-exchange and other valuable properties [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

3-D Aminoepoxy Polymers Based on Glycidyl Esters of Unsaturated Acids

Ergozhin

Бектенов

Chopabaeva

2005

International Polymer Science and Technology

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Epichlorohydrin-Based Polyfunctional Ion Exchangers

Abstract: Polyfunctional polyelectrolytes were synthesized by polycondensation of epichlorohydrin oligomer in the presence of allyl bromide. The polycondensation conditions were optimized, and composition and the properties of the resulting ion exchangers were studied.

Cited by 3 publications

References 1 publication

Studying the Composition of Complexes on the Basis of Palladium(ii), Copper(ii), Iron(iii) Chlorides and Polyvinylpyrrolidone

Studying the Composition of Complexes on the Basis of Palladium(ii), Copper(ii), Iron(iii) Chlorides and Polyvinylpyrrolidone

Synthesis and characterization of copper (II) chloride complexes with non-ionic polymers PEG and PVP

3-D Aminoepoxy Polymers Based on Glycidyl Esters of Unsaturated Acids

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