INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2015
·
IF 2.587
Bo Jin,Juan Shen,Rufang Peng,Congdi Chen,Qingchun Zhang,Xiaoyan Wang,Shijin Chu
Dimethyl sulfoxide (DMSO) with sodium carbonate (Na2CO3) is an effective catalyst system for C60 cyclopropanation through the Bingel reaction. Various bromomalonic esters, brominated β-keto esters, brominated 1,3-diketones, and other bromo-substituted active methylene compounds can react with C60 in the presence of DMSO and Na2CO3 to achieve excellent yields of the corresponding methanofullerenes at 10 °C. Moreover, this proposed methodology has been also employed successfully to functionalize [70]fullerene, single-walled carbon nanotubes (SWNTs), and graphene. This protocol is beneficial because it involves short reaction time, high yield, and a simple procedure. Additionally, this method does not need a strong base, such as sodium hydride and 1,8-diazabicyclo[5,4,0]undec-7-ene, because inexpensive Na2CO3 can be the catalyst.
研究领域:
有机化学
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纳米材料化学
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碳材料科学
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功能化修饰
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催化化学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Jia Yuan,Xu Gao,Zhaojun Wu,Yang Li
Dimethyl sulfoxide (DMSO), a prevalent organic solvent in industrial wastewater, poses challenges in conventional treatments such as Fenton oxidation or ozonation due to excessive chemical-energy consumption and uncontrolled carbon emissions. Herein, we introduce an electrocatalytic chlorine-mediated direct oxygen transfer pathway, enabling controllable oxidation of DMSO into the more biodegradable and less toxic dimethyl sulfone (DMSO 2 ). We found that the electrocatalytic membrane modified with multi-Sn/Sb sites possess a desirable activity for chlorine evolution reaction, which could generate a high steady-state concentration (1.73× 10 −13 M) of ClO• radicals. DFT calculations reveal that ClO• radicals more readily engage with DMSO via sulfur-oxygen bridging, rapidly forming DMSO 2 through chlorine-oxygen bond cleavage. Under these circumstances, the electrocatalytic membrane achieves near-complete DMSO (100 mg L −1 ) removal at 10 min, with an energy consumption of only 0.20 kWh m −3 . Moreover, the system implements controllable oxidation of DMSO, reaching up to 88.6% conversion to DMSO 2 at a flux of 800 L m⁻ 2 h⁻ 1 , while generating only 0.26 kg-CO 2 m ⁻3 of greenhouse gas emissions - significantly lower than those from Fenton and PMS activation processes. These findings highlight the promise of direct oxygen transfer mediated controllable oxidation as a sustainable and eco-friendly strategy for organic wastewater purification.
研究领域:
环境科学
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电化学
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废水处理技术
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可持续工程
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高级氧化工艺
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产品关联
DOI
PubMed
高影响因子
POLYMER SCIENCE SERIES B
·
2019
·Vol. 61
·期 1
·77-85
·
IF 0.907
Yanfei Wang,Mo Gaoming,He Liu,Huang Qing
Abstract Isothermal gelation processes for relatively low concentration PAN/DMSO/H 2 O solutions are studied by rheology. Winter–Chambon criterion is unitedly used to investigate the rheological kinetics and the structural and mechanical characteristics of the resulted gels are evaluated. It is found that during the isothermal gelation procedure, two coincident points appear sequentially, where loss tangent tan δ is independent of frequency. The occurrence of two coincident points suggests that the critical gel forms first, then it evolves into the second self-similar structure, and the average distance between crosslinks of network becomes shorter. The results also show that decreasing temperature, increase of PAN concentration or H 2 O content will lead to faster gelation kinetics and formation of more elastic and compact critical gel and the second self-similar structure. At the same temperature, the later formed second self-similar structure is always more elastic and compact than the critical gel, and the corresponding gel stiffness is stronger.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Gu Guo,Yuanlong Guo,Hailiang Sheng,Pengcheng Liu,Lei Dai,Michael North,Lei Deng,Xiaofeng Luo,Haibo Xie
A series of cellulose grafted alternating cyclic anhydride (CA) and epoxide (EPO) copolyesters (cell- g -P(CA-alt-EPO)) have been prepared in the novel DBU/DMSO/CO 2 cellulose solvent system. The DBU acted both as a reagent for cellulose dissolution and as a catalyst for ring-opening copolymerization (ROCOP) of cellulose with EPO and CA. The structural features and thermal performances of cell- g -P(CA-alt-EPO) were characterized via MALDI-TOF, FT-IR NMR, TGA, DSC and XPS. Perfectly alternating sequence distributions and controlled molecular weights of a series of cell- g -P(CA-alt-EPO) were easily achieved by a variation of the CA or EPO. The cell- g -P(CA-alt-EPO) also had satisfactory UV-absorbing properties and cellulose grafted phthalic anhydride and glycidyltrimethylammonium chloride exhibited outstanding antibacterial behavior. Antibacterial activity against Escherichia coli and Staphylococcus aureus were 96.7% and 99.4% respectively. Thus, cell- g -P(CA-alt-EPO) with good solubility, melt processability, UV absorption and antibacterial properties have potential applications in UV-shielding and antibacterial agent fields.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jingyu Chen,Dingyi Duan,Sen Xue,Yongzheng Zhang,Kai Wu,Qiang Fu
Owing to the limited solubility of cellulose in conventional solvents, the development of efficient solvent systems to dissolve cellulose is necessary for its subsequent processing into value-added cellulose-based materials. In recent years, a green, low-cost, and sustainable CO2-based reversible solvent system (CO2/DMSO/DBU) has been developed. In this system, dimethyl sulfoxide (DMSO) facilitates the swelling of cellulose, and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) provides a strong alkaline environment, enabling the derivatization of cellulose with CO2 to form cellulose carbonate, which is soluble in the solvent. Nevertheless, these systems have drawbacks, including high temperature (>50 °C) and inadequate mechanical properties of the regenerated cellulose films. In this study, ball milling was used to lower the dissolution temperature of cellulose and further improve the mechanical properties of regenerated cellulose films. To do this, dry ice as a source of CO2 and DMSO/DBU as mixed solvents, together with cellulose, were ball-milled at room temperature. A series of regenerated cellulose films were prepared at different dry ice contents and ball milling times. The results demonstrate that the cellulose can be readily dissolved within 0.5 h at room temperature, resulting in a stable cellulose solution (4.48 wt%), thanks to the mechanochemistry provided by ball milling. The prepared regenerated cellulose films exhibit satisfactory mechanical properties with a tensile strength of up to 77.3 MPa and a tensile strain of 8.6%, which are among the highest values reported for regenerated cellulose films. This work illustrates a simple, mild, and efficient method for green cellulose processing.
研究领域:
高分子科学
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材料工程
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绿色化学
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机械化学
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纤维素加工
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Zheng Wang,Keizo Nakagawa,Kecheng Guan,Aiwen Zhang,Yasunao Okamoto,Atsushi Matsuoka,Eiji Kamio,Tomohisa Yoshioka,Hideto Matsuyama
s The stability of solvent-resistant nanofiltration (SRNF) membranes, such as integrally skinned asymmetric (ISA) and thin-film composite (TFC) membranes, in polar aprotic solvents must be improved if they are to meet increasingly complex industrial demands. The stability of the former membranes can be improved by forming crosslinked rigid chains, such as polybenzimidazoles and polyimides, but this requires time-consuming treatment processes. Conversely, the latter membranes are easy to fabricate but lack efficient active sites for crosslinking and structural rigidity. Herein, we present a fabrication strategy combining the characteristics of both types of membranes. We first utilize amino-functional porphyrins as polyaromatic units to form rigid polyamide networks by vacuum-assisted interfacial polymerization, simultaneously providing active sites for further crosslinking, which is accomplished by immersion in FeCl 2 /dimethyl sulfoxide (DMSO) solution to directly establish Fe-O-Fe bridges between porphyrin centers to form a stable network. The Fe-O-Fe-bridged porphyrin networks are solvent-stable in DMSO. Furthermore, they achieve outstanding molecular separation (96.2% rejection of methyl orange, 327 Da) and limited molecular-weight-cutoff change (from 360 to 420 Da) during alternating MeOH and DMSO filtration, along with long-term recovery efficiency (> 96.7% over seven days). Thus, our study provides a promising strategy for the facile development and fabrication of efficient, robust SRNF membranes.
研究领域:
膜科学
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材料工程
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化学分离
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高分子化学
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纳米技术
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产品关联
DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2025
·Vol. 33
·期 1
·177-190
·
IF 7.2
Dong Yinrui,Yang Yongbin,Wang Lin,Duan Qianqian,Li Qian,Zhang Yan,Jiang Tao
Bentonite is a necessary binder in producing pellets. Its excessive use reduces the iron grade of pellets and increases production costs. Minimizing bentonite dosage is essential for producing high-quality iron ore pellets. Addressing the gap in the application of organically-intercalated modified bentonite in the pelletizing field, this study introduces an innovative modification process for bentonite that employs the synergistic effect of mechanical force and dimethyl sulfoxide to enhance the intercalation of organic compounds within bentonite, thus significantly enhancing its binding performance. The colloid value and swell capacity of modified bentonite (98.5 mL/3g and 55.0 mL/g) were much higher than the original bentonite (90.5 mL/3g and 17.5 mL/g). With the decrease of bentonite dosage from 1.5wt% to 1.0wt%, the drop number of green pellets from a height of 0.5 m and the compressive strengths of roasted pellets using the modified bentonite (6.0 times and 2916 N per pellet) were significantly higher than those of the original bentonite (4.0 times and 2739 N per pellet). This study provides a comprehensive analysis of the intercalation modification mechanism of bentonite, offering crucial technical insights for the development of high-performance modified bentonite as iron ore pellet binders.
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产品关联
DOI
高影响因子
Polymer-Plastics Technology and Materials
·
2026
·
IF 3.5
Xiangrui Meng,Guohao Li,Di Fan,Wenjia Gao,Mingchang Wang,Xusheng Wu,Qi Jia,Ji Suk Shim,Jae-Jun Ryu,Heng Bo Jiang
This study investigated the effects of varying ratios of urethane dimethacrylate (UDMA), dimethyl sulfoxide (DMSO), and (2,4,6-trimethylbenzoyl) bis(p-tolyl) phosphine oxide (TMO) on the performance of dental 3D-printing resins fabricated via digital light processing (DLP). Thirteen resin formulations were printed and evaluated for viscosity, degree of conversion, water sorption, solubility, water contact angle, dimensional stability, color stability, flexural strength, modulus, hardness, and cytotoxicity. Viscosity increased with the ratio of UDMA/(UDMA+DMSO), ranging from 187.1 to 2997.3 mPa·s, while the degree of conversion remained high (77.0%–88.1%) with no significant differences. Water sorption, solubility, and contact angle all increased with higher DMSO content. Dimensional stability improved with increased of the UDMA/(UDMA+DMSO). And all groups exhibited great color stability, with ΔE00 values below 4.1 for nearly all groups on a white background. Flexural strength, modulus and hardness also rose with the ratio of UDMA/(UDMA+DMSO). All formulations demonstrated cell viability exceeding 70%, indicating that there was no cytotoxicity. In summary, we focused on the effects of UDMA, DMSO and TMO ratios on the properties of the specimens and analyzed the trends of the properties with different ratios. We expect that this study will provide a fundamental basis for optimizing materials suitable for clinical dental applications.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2026
·
IF 16.8
Yang Luo,Zixuan Wang,Zhongying Zhao,Mingtao Zhu
Conductive hydrogel combining injectability, anti-freezing, adhesiveness, and ultra-stretchability is a promising candidate for flexible wearable electronic sensors. The key challenge lies in achieving a synergistic balance of multiple physical interactions through a simple strategy. Herein, we report a fully physically crosslinked conductive hydrogel composed of poly (acrylic acid) (PAA), dimethyl sulfoxide (DMSO), and Ni 2+ fabricated via a one-pot approach without chemical crosslinkers. Dynamic crosslinking arising from hydrogen-bonding networks and Ni 2+ -carboxylate coordination endows the hydrogel with robust mechanical properties (725 kPa tensile strength, 33,000 % elongation at break), efficient self-healing capability (∼90 % recovery), and excellent thermal stability down to −40 °C. The polar DMSO-rich environment and dynamic metal–ligand interactions synergistically enhance ionic conductivity and sensing sensitivity. Furthermore, the hydrogel exhibits high transparency, pH responsiveness, and interfacial adhesion, providing a multifunctional platform for high-performance flexible sensors.
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产品关联
DOI
高影响因子
THERMOCHIMICA ACTA
·
2025
·
IF 3.5
Jian Ma,Yixiao Wang,Jichao Hu,Gaoqi Han,Lemeng Wang,Huiying Gao,Pan Zhang,Kangrui Li,Dong Fu
This study determined and correlated the density and viscosity of the 2-(methylamino)ethanol (MAE) - dimethyl sulfoxide (DMSO) non-aqueous solution over a temperature range of 298.15 to 323.15 K at atmospheric pressure. The effects of the mass fraction of MAE ( w 1 ), temperature ( T ) and CO 2 loading ( α ) on viscosity and density were demonstrated based on of experimental data and calculations. The excess molar volume ( V m E ) and viscosity deviation ( Δη ) were derived from the experimental data. Furthermore, the V m E and Δη were correlated by using the Redlich-Kister equation. The viscosity activation energy and CO 2 diffusion coefficient were calculated and analyzed by utilizing viscosity data. The activation parameters activation enthalpy (Δ Η* ) and activation entropy (Δ S* ) were determined using the measured viscosity and density data. This combined study provides insights into intermolecular interactions and transportation characteristics through the observed changes in viscosity and density with composition.
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高影响因子
ENERGY
·
2023
·
IF 9
Fanli Meng,Kun Fu,Xueli Wang,Yixiao Wang,Lemeng Wang,Dong Fu
In previous work by Fu et al. (2021, 2022), the performance of 2-ethylhexylan-1-amine (EHA) and diglyme absorbents for carbon dioxide (CO 2 ) capture from flue gas was demonstrated. In this study, dimethyl sulfoxide (DMSO) was selected as a replacement for diglyme due to its high boiling point , low viscosity , and environmentally friendly properties. The optimization of the mass fraction resulted in a composition of 60 wt% EHA and 40 wt% DMSO, considering factors such as absorption capacity , absorption rate, and viscosity. At a desorption temperature of 373 K, the CO 2 -loaded EHA-DMSO exhibited a desorption efficiency of approximately 98 %. The estimation of desorption energy ( E t ) consumption, using the method of electric energy consumption , revealed that EHA-DMSO achieved approximately a 50 % reduction in E t compared to the MEA (30 wt%) absorbent. Even with a water content of 10 %, E t was reduced by around 40 %. Additionally, the absorbent demonstrated notable advantages in terms of water resistance and cycle performance. The advantages of environmental friendliness and easy availability of raw materials suggest that the EHA-DMSO absorbent holds a promising potential for broader application in the field of CO 2 capture from flue gas.
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiu-Yan Cheng,Shu-Qiang Peng,Li-Xin Wu,Qing-fu Sun
3D-printed stretchable sensors have promising applications in wearable devices, human–computer interaction, soft robotics, and many other fields. However, low conductivity and poor stretchability still hinder their extensive applications. Herein, we report a strategy of double networks and annealed PEDOT:PSS for the first time. The new material combines mechanical stretch performance and conductivity together, where 3D-printed complex stretchable poly(2-hydroxyethyl acrylate-isobornyl acrylate) (PHI) structure serves as the tough network and annealed highly conductive PEDOT:PSS serves as the functional network. It is adopted to build 3D-printed porous stereo structures with both stretchability and conductivity. It exhibits interconnected uniform networks, improved storage modulus (1.3 * 10 6 Pa), higher conductivity (The conductivity of PHI/PEDOT: PSS annealed is up to 3.12 * 10 −1 S m −1 , which is 441 times compared to PHI/PEDOT: PSS), excellent stability and durability at a large strain of 60%. Hence, it is expected that this new strategy will open up wide possibilities for designing stretchable sensors and smart devices.
研究领域:
材料科学
·
柔性电子
·
生物医学工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）