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Bulletin of the Korean Chemical Society最新文献

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Preparation of chromium complexes for ethylene tetramerization catalyst 制备用于乙烯四聚合催化剂的铬络合物
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-19 DOI: 10.1002/bkcs.12826
Jun Hyeong Park, Ju Yong Park, Jun Won Baek, Yeong Hyun Seo, Mi Ryu Lee, Junseong Lee, Bun Yeoul Lee
{"title":"Preparation of chromium complexes for ethylene tetramerization catalyst","authors":"Jun Hyeong Park,&nbsp;Ju Yong Park,&nbsp;Jun Won Baek,&nbsp;Yeong Hyun Seo,&nbsp;Mi Ryu Lee,&nbsp;Junseong Lee,&nbsp;Bun Yeoul Lee","doi":"10.1002/bkcs.12826","DOIUrl":"10.1002/bkcs.12826","url":null,"abstract":"<p>One of the remaining challenges in the commercialization of a highly efficient ethylene tetramerization catalyst, [<b>1</b>-CrCl<sub>2</sub>][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>] (<b>1</b>=iPrN[P(C<sub>6</sub>H<sub>4</sub>Si(Octyl)<sub>3</sub>)<sub>2</sub>]<sub>2</sub>), is the generation of small amounts of polyethylene (PE). To address this issue, we explored different activator options and found that (Octyl)<sub>3</sub>Al was the most effective choice. Building on the observation that [iPrN(PPh<sub>2</sub>)<sub>2</sub>]CrCl<sub>3</sub>(THF) was not completely alkylated by the action of excess Me<sub>3</sub>Al to form ([iPrN(PPh<sub>2</sub>)<sub>2</sub>]Cr(μ<sub>2</sub>-Cl)(ClMe<sub>2</sub>AlClAlMe<sub>3</sub>))<sub>2</sub>, we synthesized [<i>ortho</i>-(MeO)C<sub>6</sub>H<sub>4</sub>CH<sub>2</sub>-η<sup>1</sup>C:κO]<sub>3</sub>Cr, developing a catalytic system comprising this precursor, PNP ligand <b>1</b>, and [MeN(H)(C<sub>18</sub>H<sub>37</sub>)<sub>2</sub>][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>]. However, this catalytic system exhibited a long induction time (~30 min) and generated a significant amount of PE. Returning to the catalytic system of [<b>1</b>-CrCl<sub>2</sub>][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>], we successfully achieved the conversion of [(EtOH)<sub>4</sub>CrCl<sub>2</sub>][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>] to [(CH<sub>3</sub>CN)<sub>4</sub>CrCl<sub>2</sub>][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>] at a large scale by designing a specialized glass apparatus. Finally, we discovered that the generation of PE could be reduced by adjusting the reaction conditions during the synthesis of [<b>1</b>-CrCl<sub>2</sub>][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>].</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"331-340"},"PeriodicalIF":1.7,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139926206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly active cobalt(II) and copper(II) complexes supported by aminomethylquinoline mediating stereoselective ring-opening polymerization of rac-lactide 氨甲基喹啉支持的高活性钴（II）和铜（II）配合物介导 rac-lactide 的立体选择性开环聚合反应
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-17 DOI: 10.1002/bkcs.12828
Jaegyeong Lee, Saira Nayab, Ameet Kumar, Dongil Kim, Hyewon Jung, Sang-Ho Lee, Daeheum Cho, Hyosun Lee
{"title":"Highly active cobalt(II) and copper(II) complexes supported by aminomethylquinoline mediating stereoselective ring-opening polymerization of rac-lactide","authors":"Jaegyeong Lee,&nbsp;Saira Nayab,&nbsp;Ameet Kumar,&nbsp;Dongil Kim,&nbsp;Hyewon Jung,&nbsp;Sang-Ho Lee,&nbsp;Daeheum Cho,&nbsp;Hyosun Lee","doi":"10.1002/bkcs.12828","DOIUrl":"10.1002/bkcs.12828","url":null,"abstract":"<p>Cobalt(II) and copper(II) complexes supported by 4-(quinolin-2-ylmethyl)morpholine (L) were characterized, and their reactivity toward the ring-opening polymerization (ROP) of <i>rac</i>-lactide (<i>rac</i>-LA) was studied. The use of [LMCl<sub>2</sub>]/LiO<sup><i>i</i></sup>Pr and [LMCl<sub>2</sub>]/LiMe (M = Co, Cu) resulted in over 95% conversion within 10 min at 25 °C. The effect of the initiating group and geometry of the metal complexes steered the heterotactic enchainment of the resultant polylactide(PLA). The Co(II)/LiMe system represents the first example of the ROP of <i>rac</i>-LA with high heterotactic enchainment (<i>P</i><sub>r</sub> = 0.92) with 98% conversion at 0 °C.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"317-321"},"PeriodicalIF":1.7,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139926288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface modification of perforated separator for more robust and thinner all-solid-state electrolyte membrane 对穿孔分离器进行表面改性，使全固态电解质膜更坚固、更薄
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-14 DOI: 10.1002/bkcs.12829
Dohwan Kim, Seungyeop Choi, Cheol Bak, Youngjoon Roh, Cyril Bubu Dzakpasu, Yong Min Lee
{"title":"Surface modification of perforated separator for more robust and thinner all-solid-state electrolyte membrane","authors":"Dohwan Kim,&nbsp;Seungyeop Choi,&nbsp;Cheol Bak,&nbsp;Youngjoon Roh,&nbsp;Cyril Bubu Dzakpasu,&nbsp;Yong Min Lee","doi":"10.1002/bkcs.12829","DOIUrl":"10.1002/bkcs.12829","url":null,"abstract":"<p>Solid electrolytes (SEs) play an essential role in the development of all-solid-state batteries (ASSBs) due to their exceptional ionic conductivity. However, conventional pelletized SEs with hundreds of micrometers result in highly reduced energy density and suffer from mechanical brittleness, which delay the commercialization of ASSBs. In this study, we present an innovative approach to fabricate SE membranes with perforated Al<sub>2</sub>O<sub>3</sub> nanolayer-coated polyethylene (PE) separator as a mechanical supporter. Al<sub>2</sub>O<sub>3</sub>-coated separators exhibit better adhesion with LPSCl particles and better thermal stability. As a result, the SE membrane exhibits thickness of 35 μm while maintaining a superior mechanical tensile strength. Furthermore, when the SE membrane is applied to Li||LiNi<sub>0.7</sub>Co<sub>0.15</sub>Mn<sub>0.15</sub>O<sub>2</sub> full-cells, stable cycling performance over 250 cycles, which is comparable to thick LPSCl pellet cell, can be achieved even with higher conductance (&gt;150 mS). Our results highlight the potential of thin and durable SE membranes in contributing to the commercialization of ASSBs.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"341-349"},"PeriodicalIF":1.7,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metal–organic frameworks as a fluorescent probe for detection of pathogenic biomarkers in human urine 金属有机框架作为荧光探针检测人体尿液中的病原生物标记物
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-13 DOI: 10.1002/bkcs.12827
Seyeon Jeong, Hoi Ri Moon
{"title":"Metal–organic frameworks as a fluorescent probe for detection of pathogenic biomarkers in human urine","authors":"Seyeon Jeong,&nbsp;Hoi Ri Moon","doi":"10.1002/bkcs.12827","DOIUrl":"10.1002/bkcs.12827","url":null,"abstract":"<p>Metal–organic frameworks (MOFs) are actively explored as sensing materials owing to their high porosity, substantial surface area, and structural diversity, providing diverse chemical and physical properties. Their fluorescent characteristics are pivotal, enabling MOFs to function as probes for detecting specific target molecules. Unlike conventional disease diagnosis methods such as biopsies or blood collection, the detection of pathogenic biomarkers in human urine is conventional and less risky. While mass spectroscopy identifies proteins and metabolites in urine at high costs, MOF test papers offer a convenient solution. These papers confirm the existence of the target molecules through naked-eye observation upon UV light irradiation at specific wavelengths. MOF-based fluorescent probes facilitate disease diagnosis, including pheochromocytoma, toluene exposure, vitamin deficiencies, gout, hyperuricemia, cancers, body disorders, and teratogenicity, with low detection limits. This review delves into recent developments in MOF fluorescent probes, covering synthesis, emission spectra, and sensing mechanisms.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"308-316"},"PeriodicalIF":1.7,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocatalytic degradation of 4-nitrophenol by using multicomponent Cu2O-Cu@TiO2 nanoparticle aggregates 利用多组分 Cu2O-Cu@TiO2 纳米粒子聚合体光催化降解 4-硝基苯酚
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-13 DOI: 10.1002/bkcs.12822
Jianwei Jiang, Seokyeong Moon, Sungho Yoon, Longhai Piao
{"title":"Photocatalytic degradation of 4-nitrophenol by using multicomponent Cu2O-Cu@TiO2 nanoparticle aggregates","authors":"Jianwei Jiang,&nbsp;Seokyeong Moon,&nbsp;Sungho Yoon,&nbsp;Longhai Piao","doi":"10.1002/bkcs.12822","DOIUrl":"10.1002/bkcs.12822","url":null,"abstract":"<p>Multicomponent nanomaterials with synergistic effect were typically used to enhance the photocatalytic performance. Herein, three-component nanomaterials composed of Cu<sub>2</sub>O, Cu, and TiO<sub>2</sub> were prepared using a facile method, and applied in the photocatalytic degradation reactions. The synthetic procedure involves the formation of Cu<sub>2</sub>O nanoparticle aggregates (NPAs) followed by Cu nanoparticles growth on the surface of Cu<sub>2</sub>O NPAs in one pot, and TiO<sub>2</sub> encapsulation (Cu<sub>2</sub>O-Cu@TiO<sub>2</sub>). The catalyst structure was characterized by x-ray diffraction, field emission-scanning electron microscopy, transmission electron microscopy, and energy-dispersed x-ray. The catalytic performance of Cu<sub>2</sub>O-Cu@TiO<sub>2</sub> NPAs was evaluated through the photocatalytic degradation of 4-nitrophenol under the simulated solar light. We found that it exhibited greater activity than the Cu<sub>2</sub>O-Cu NPAs, commercial TiO<sub>2</sub>, and Cu<sub>2</sub>O@TiO<sub>2</sub> NPAs, probably due to their synergistic interactions resulting in the effective photogenerated carrier transfer in the multicomponent nanomaterials.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"373-377"},"PeriodicalIF":1.7,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular dyad exhibiting strong multi-resonance blue fluorescence 分子二元体发出强烈的多共振蓝色荧光
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-09 DOI: 10.1002/bkcs.12824
Byung Hak Jhun, Youngmin You
{"title":"Molecular dyad exhibiting strong multi-resonance blue fluorescence","authors":"Byung Hak Jhun,&nbsp;Youngmin You","doi":"10.1002/bkcs.12824","DOIUrl":"10.1002/bkcs.12824","url":null,"abstract":"<p>A multi-resonance (MR) fluorophore exhibiting circularly polarized luminescence (CPL) holds a significant promise for enhancing the utility of organic light-emitting devices. To meet this demand, we have devised molecular dyads having azaoxaborin MR emitters based on homochiral (<i>R</i>)- and (<i>S</i>)-1,1′-bi-2-naphthol. The synthesized 12,12′-di-<i>tert</i>-butyl-9,9′-bi(8,8′-dioxa-4b,4′b-diaza-14b,14′b-diborafluorantheno[1,2,3-<i>de</i>]tetracene) products (TBNBOCz) exhibit strong blue fluorescence, with a remarkable 100% fluorescence quantum yield and an extremely narrow full width at half-maximum of 22 nm. However, unexpectedly, TBNBOCz exhibits negligible electric circular dichroism and CPL activities. Chiroptical investigations into the reaction precursors reveals an occurrence of racemization in the borylation step. This result emphasizes the importance of understanding synthetic processes and their impact on the chiroptical properties.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"322-330"},"PeriodicalIF":1.7,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From structure to function: Harnessing the ionic conductivity of covalent organic frameworks 从结构到功能：利用共价有机框架的离子传导性
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-08 DOI: 10.1002/bkcs.12823
Cong-Xue Liu, Soomin Hwang, Hyerin Woo, Eunsung Lee, Sarah S. Park
{"title":"From structure to function: Harnessing the ionic conductivity of covalent organic frameworks","authors":"Cong-Xue Liu,&nbsp;Soomin Hwang,&nbsp;Hyerin Woo,&nbsp;Eunsung Lee,&nbsp;Sarah S. Park","doi":"10.1002/bkcs.12823","DOIUrl":"https://doi.org/10.1002/bkcs.12823","url":null,"abstract":"<p>Rapid advancements in energy storage technology, driven by a growing demand for energy storage devices, underscore the crucial need to comprehend ionic conduction behavior. Consequently, intensive research on high-performance ionic conductors becomes imperative. Covalent organic frameworks (COFs) have emerged as invaluable materials in the realm of solid-state or quasi-solid-state ion-conduction, leveraging their unique properties such as significant porosity, tunability, and robust physicochemical durability. These distinctive attributes position COFs as promising candidates for the development of electrodes, electrolytes, and separator materials characterized by high capacities, rapid ion transport, and electrochemical stability. This review provides insights into COFs as ionic conductors, discusses recent advancements in COF-based energy storage devices, and explores the influence of structural functionalization, pore size engineering, and dimensional regulation on ionic conduction. Moreover, the review aims to deepen understanding and pave the way for future advancements in the utilization of COFs within energy storage technologies.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 4","pages":"296-307"},"PeriodicalIF":1.7,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140556200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of diverse aryl-substituted amino propanes 多种芳基取代氨基丙烷的合成
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-06 DOI: 10.1002/bkcs.12820
Seyeon Yoo, Sojeong Yi, Hyun-Joon Ha
{"title":"Synthesis of diverse aryl-substituted amino propanes","authors":"Seyeon Yoo,&nbsp;Sojeong Yi,&nbsp;Hyun-Joon Ha","doi":"10.1002/bkcs.12820","DOIUrl":"10.1002/bkcs.12820","url":null,"abstract":"<p>Amines bearing diverse aryl substituents for potential utilities as energy and new materials have been synthesized from aziridine-2-carboxaldehyde and diverse aryl-containing substrates. At first two aryl groups were to yield (aziridine-2-yl)-1,1-diaryl-methane which was converted to 5-diarylmethyl oxazolidin-2-one as a synthetic intermediate. They were further reacted with another aryl group in the presence of methanesulfonic acid to yield 2,3,3-triarylpropylamine with the possible carbenium ion intermediate. In addition, this reaction with a second additional phenolic aryl group gave rise to the diversely substituted 3-(4-methoxyphenyl)-(2,3-dihydrobenzofuran-2-yl)methanamine derived from the intramolecular aziridine ring-opening reaction by hydroxy group at phenol.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 3","pages":"247-251"},"PeriodicalIF":1.7,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metal-triggered supramolecular hydrogels based on bipyridine ligand possessing hydrazine moieties with metal ions 基于具有金属离子肼基的联吡啶配体的金属触发超分子水凝胶
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-06 DOI: 10.1002/bkcs.12818
Kayeong Go, Sehee Kim, MinHye Kim, Heekyoung Choi, Sung Ho Jung, Jong Hwa Jung
{"title":"Metal-triggered supramolecular hydrogels based on bipyridine ligand possessing hydrazine moieties with metal ions","authors":"Kayeong Go,&nbsp;Sehee Kim,&nbsp;MinHye Kim,&nbsp;Heekyoung Choi,&nbsp;Sung Ho Jung,&nbsp;Jong Hwa Jung","doi":"10.1002/bkcs.12818","DOIUrl":"10.1002/bkcs.12818","url":null,"abstract":"<p>Bipyridine-based gelator <b>1</b> having two <i>D</i>-alanine units was prepared, and its gelation ability was evaluated in the presence of Co(NO<sub>3</sub>)<sub>2</sub> and AgNO<sub>3</sub> in water. Gelator <b>1</b> could gelate H<sub>2</sub>O in the presence of Co(NO<sub>3</sub>)<sub>2</sub> or AgNO<sub>3</sub> (1.0 equiv.) in water. Gelator <b>1</b> formed a 2:1 (1:Co<sup>2+</sup>) octahedral complex with Co<sup>2+</sup>, whereas it formed a 2:1 (1:Ag<sup>+</sup>) tetrahedral complex with Ag<sup>+</sup>. The metallosupramolecular hydrogel with Co<sup>2+</sup> assembled into a left-handed helical fiber, whereas that with Ag<sup>+</sup> assembled into a nanorod structure. <sup>1</sup>H NMR and FTIR analyses revealed that π–π stacking and intermolecular hydrogen bonds acted as the driving force for the formation of the supramolecular nanoarchitectures. Furthermore, to characterize the viscoelastic properties of hydrogels, rheology experiments were conducted at 25°C, including time, strain, and frequency sweeps.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 3","pages":"243-246"},"PeriodicalIF":1.7,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physicochemical characteristics of a nanocomposite film based on purified sodium carboxymethylcellulose and selenium nanoparticles 基于纯化羧甲基纤维素钠和硒纳米颗粒的纳米复合薄膜的理化特性
IF 1.7 4区 化学
Bulletin of the Korean Chemical Society Pub Date : 2024-02-06 DOI: 10.1002/bkcs.12813
Khaydar Ergashovich Yunusov, Fozil Mamaraim Ugli Turakulov, Abdushkur Abdukhalilovich Sarymsakov, Sherzod Abdullaevich Yuldoshov, Sayyora Sharafovna Rashidova, Jiang Guohua
{"title":"Physicochemical characteristics of a nanocomposite film based on purified sodium carboxymethylcellulose and selenium nanoparticles","authors":"Khaydar Ergashovich Yunusov,&nbsp;Fozil Mamaraim Ugli Turakulov,&nbsp;Abdushkur Abdukhalilovich Sarymsakov,&nbsp;Sherzod Abdullaevich Yuldoshov,&nbsp;Sayyora Sharafovna Rashidova,&nbsp;Jiang Guohua","doi":"10.1002/bkcs.12813","DOIUrl":"10.1002/bkcs.12813","url":null,"abstract":"<p>In this study, selenium nanoparticles (SeNPs) were synthesized and stabilized by reducing sodium selenite using ascorbic acid in an aqueous solution of sodium carboxymethylcellulose (Na-CMC) with a degree of substitution of 0.97 and a degree of polymerization of 810. IR-Fourier spectroscopy revealed that coordination bonds between functional groups in Na-CMC and SeNPs resulted in the development of polymer-metal complexes. UV–Vis spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and dynamic light scattering (DLS) methods were used to determine the SeNP sizes in the structure of the nanocomposite film. Investigation of the stabilization and nonstabilization of SeNPs over several cycles has shown that the effect of the polymer matrix of Na-CMC on the stabilization of nanoparticles was achieved for 672 h, which was confirmed by the unchanged size distribution and resistance to change of the SeNPs synthesized in Na-CMC solutions.</p>","PeriodicalId":54252,"journal":{"name":"Bulletin of the Korean Chemical Society","volume":"45 3","pages":"273-283"},"PeriodicalIF":1.7,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139801508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","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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