Article
Chemistry, Physical
Geeta Durga, Pooja Kalra, Vinay Kumar Verma, Kanjur Wangdi, Anuradha Mishra
Summary: Ionic liquids have established themselves as a preferred solvent in synthetic chemistry, particularly in polymer chemistry. They are versatile solvents used for polymeric reactions and can also be polymerized to enhance their inherent properties, finding applications in various fields such as electrochemical devices, nanocomposites, optoelectronics, and more. This comprehensive review covers both aspects of ILs as a solvent in polymeric reactions and their polymeric form, poly(ionic liquids), presenting their diverse potential applications.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Electrochemistry
Guoqiang Xing, Lei Wu, Guoqiang Kuang, Tian Ma, Zhengjian Chen, Yijie Tao, Yue Kang, Shiguo Zhang
Summary: By improving the molecular design of the electrochromic polymer and electrolyte, researchers have successfully reduced the interface resistance, increased the ion diffusion coefficient, and significantly improved the performance of the electrochromic devices.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Gongyue Huang, Luca Porcarelli, Yan Liang, Maria Forsyth, Haijin Zhu
Summary: The study found that the composite with TFSI anion exhibited the best ion conductivity, while a synergistic effect was observed for the composite with both TFSI and OTf mixed anion, resulting in significantly enhanced ionic conductivity reaching 1.47 mS/cm. This work demonstrates the potential of using a combination of TFSI and OTf anions as an effective strategy for improving ionic conductivity in proton-exchange membranes.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Polymer Science
Tar-Hwa Hsieh, Lin-Chia Ho, Yen-Zen Wang, Ko-Shan Ho, Cheng-Hsien Tsai, Li-Fan Hung
Summary: The hydrophilic initiator potassium persulfate was transformed into a hydrophobic molecule by forming a complex with cetyltrimethylammonium bromide, allowing for inverse emulsion polymerization to take place inside micelles. The resulting iron compound, after calcination, exhibited superparamagnetic properties with a high saturation magnetization, which decreased over time when exposed to the atmosphere.
Article
Polymer Science
Qunying Wang, Sergey Popov, Veronika Strehmel, Jochen S. Gutmann, Bernd Strehmel
Summary: A series of cyanines with varying methine chain lengths and terminal groups were reacted with a specific cation after excitation in the NIR region, resulting in the generation of free radicals and conjugate acids. This study investigated the efficiency of free radical and cationic polymerization, as well as their combination as a hybrid system. By using NIR-LED exposure and varying the sensitizers, different photopolymerization efficiencies were achieved. The results showed that the combination of free radical and cationic polymerization can work effectively in hybrid systems.
Article
Polymer Science
Robert Loewe, Thomas Hanemann, Tatiana Zinkevich, Andreas Hofmann
Summary: Increasing side chain length of the studied ammonium-based polymerized ionic liquids results in lower glass transition temperatures and higher ionic conductivity values. However, the addition of conducting salt to the polymer membranes decreases both the glass transition temperatures and the ionic conductivity values, while higher lithium-ion mobility is observed in samples with higher conducting salt content.
Article
Polymer Science
Ann Jastram, Tobias Lindner, Christian Luebbert, Gabriele Sadowski, Udo Kragl
Summary: This study focused on hydrogels synthesized by radical polymerization of imidazolium-based ionic liquids. The swelling and diffusion behavior of these hydrogels were investigated, showing strong swelling in water and ethanol with transport mechanisms deviating from Fickian-type behavior.
Correction
Chemistry, Physical
Yury A. Budkov, Nikolai N. Kalikin, Andrei L. Kolesnikov
Summary: The correction for 'Electrochemistry meets polymer physics: polymerized ionic liquids on an electrified electrode' by Yury A. Budkov et al. published in Phys. Chem. Chem. Phys., 2022, DOI: 10.1039/d1cp04221a addresses any errors in the original article.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Mohamed Aouay, Albert Magnin, Jean-Luc Putaux, Sami Boufi
Summary: Emulsion polymerization using dextrins as the sole stabilizer produced stable latex dispersions with high solid content and narrow particle size distribution. The H2O2/ascorbic acid redox initiator was effective in achieving complete polymerization within 3-4 hours, resulting in dextrin-functionalized polymer latexes with particle sizes between 150 and 600 nm.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Xin Guan, Jingjing Wei, Yufei Xia, To Ngai
Summary: In this study, a direct approach for the fabrication of noncovalent raspberry-shaped microgels was developed. This approach utilizes electrostatically driven heterocoagulation of binary microgels with complementary functional groups at the oil-water interface. The results show that the addition of hexanoic acid improves the hydrophobicity and interfacial activity of microgels, and raspberry-shaped microgels achieve high coverage on the droplet surface, resulting in an elastic interface and excellent stability of emulsions.
Article
Nanoscience & Nanotechnology
Tucker J. McKenzie, Thomas Brunet, Lyndsay N. Kissell, Pietro Strobbia, Neil Ayres
Summary: This study presents the synthesis of porous polymers with controlled porosity values and mechanical properties using emulsion-templated polymerizations. The materials prepared with reactive surfactants showed higher storage modulus and lower longitudinal sound speeds, making them suitable candidates in the preparation of acoustic devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Bingxiu Xue, Xiaopeng Zhao, Jianbo Yin
Summary: In this study, five different self-crosslinked polymerized ionic liquids (S-PILs) with identical mobile counterions were synthesized and their electrorheological (ER) effects were investigated. The results showed that S-PIL with phosphorus-containing ion spacers exhibited the weakest ER effect, while S-PIL with amino-containing ion spacers had the strongest ER effect. The reasons for these different ER effects were explained by calculating the activation energy of ion movement and the dissociation degree of counterions using conductivity and Raman spectroscopy data.
Article
Chemistry, Multidisciplinary
Chonwarin Thanaphatkosol, Nattapol Ma, Kotoha Kageyama, Teerat Watcharatpong, Thanakorn Tiyawarakul, Kanokwan Kongpatpanich, Satoshi Horike
Summary: Reversible solid-to-liquid phase transition allows for the formation of homogeneous mixed-glasses in coordination polymer glasses from two distinct parent compounds. The resulting mixed glasses exhibit composition-dependent glass transition temperatures and unique viscoelastic behavior. Non-linear mixed glass former effect and controllable anhydrous H+ conductivities are also demonstrated.
CHEMICAL COMMUNICATIONS
(2022)
Article
Polymer Science
Shinian Cheng, Zaneta Wojnarowska, Malgorzata Musial, Slawomir Kolodziej, Eric Drockenmuller, Marian Paluch
Summary: The study investigates the volume effects in a specific 1,2,3-triazolium-based poly(ionic liquid) at both the macro and nano scales. The experimental determination of a relatively large free volume (V-f) suggests it as the main factor controlling the superionic properties of the material. The analysis of specific volume and relaxation dynamics in terms of different models did not work for the studied system.
Article
Chemistry, Applied
Abhay Shankar, A. K. Abdul Malik, Ramanuj Narayan, Arindam Chakrabarty
Summary: In this study, a cellulose nanofiber-based colloidal polymer nanocomposite was developed as a coating material to enhance the mechanical and water repelling properties of kraft paper. The nanocomposite films exhibited improved mechanical properties and showed potential for developing paper-based packaging materials. The latex-coated kraft paper demonstrated enhanced tensile index and hydrophobicity compared to uncoated paper.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Polymer Science
Qingquan Tang, Hao Ren, Zdravko Kochovski, Lisheng Cheng, Ke Zhang, Jiayin Yuan, Weiyi Zhang
Summary: The topological geometry of poly(ionic liquid)s has a strong influence on their self-assembly behaviors. This study investigates the effects of cyclic topology on poly(ionic liquid)s by preparing linear and cyclic copolymers and studying their self-assembly phenomena. The results show that the average size of cyclic copolymers nanospheres is 46.2% smaller than linear copolymers nano-assemblies. The authors speculate that the spherical aggregates are formed through a transition from micelles with gradient block-like structures.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Andrea Rogolino, Ingrid F. Silva, Nadezda V. Tarakina, Marcos A. R. da Silva, Guilherme F. S. R. Rocha, Markus Antonietti, Ivo F. Teixeira
Summary: This study reveals that functionalized poly(heptazine imides) (PHIs) and fully protonated PHIs have high photocatalytic activity for efficient production of H2O2 under visible light. Functionalization with transition metals is not beneficial for H2O2 synthesis and may catalyze its decomposition.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Bertram Schulze Lammers, Nieves Lopez-Salas, Julya Stein Siena, Hossein Mirhosseini, Damla Yesilpinar, Julian Heske, Thomas D. Ku, Harald Fuchs, Markus Antonietti, Harry Moenig, Harry Moenig
Summary: In this study, the reacted layers of non-noble metal-organic compounds on a copper substrate were characterized using nc-AFM, XPS, and ab initio simulations. The dehydrogenation process and strong chemisorption of the molecular units on the copper substrate were observed. The interaction between nitrogen and copper atoms played a significant role in catalyzing the oxygen reduction reaction. The combination of atomic-scale characterization and electrochemical performance provided fundamental insights into the active sites of this technologically relevant reaction.
Article
Polymer Science
Baris Kumru, Markus Antonietti
Summary: Iodine transfer polymerization (ITP) is a controlled radical polymerization method with widespread applicability, characterized by simplicity, low toxicity, metal-free nature, no coloring, and ease of purification.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Wei Wang, Juan Han, Yan Sun, Miao Zhang, Shiqi Zhou, Kai Zhao, Jiayin Yuan
Summary: In this study, metal-free Se, B, and N ternary-doped porous carbons (SeBN-Cs) were synthesized and tested as electrocatalysts for CO2 reduction reaction (CO2RR). The results showed that the major product of CO2RR on SeBN-C electrocatalysts was CO, with a small fraction of H2 as the byproduct. The optimized catalyst sample SeBN-C-1100 exhibited high CO selectivity and long-term operational stability. This study provides important insights into the properties and functions of multi-heteroatom-doped porous carbon electrocatalysts in CO2RR.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Si-hua Liu, Hong Wang, Jian-ke Sun, Markus Antonietti, Jiayin Yuan
Summary: The search for molecular functionality platforms for materials chemistry innovation is a key goal, with Poly(ionic liquid)s (PILs) serving as a bridge between multiple research areas and offering new chemical tools and opportunities for material design. The smart hydrogen atoms (SHAs) in 1,2,4-triazolium-type PILs show enhanced performance profiles, providing possibilities for novel materials applications.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Applied
Doaa E. El Nashar, Fahima M. Helaly, Aman I. Khalaf, Nehad N. Rozik, Heba Kandil, Adel A. Koriem, Ayman M. Ellaban, Sherein I. Abd El-Moez, Abdelmohsen M. Soliman
Summary: The aim of this study is to develop antimicrobial rubber for safe industrial toys. The rheological properties, mechanical properties, and cytotoxicity of the rubber compounds were evaluated. The results showed that the rubber products with doxycycline and cephalexin exhibited enhanced physical and mechanical characteristics, as well as good safety and antimicrobial efficacy.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Yang Wang, Tingting Lian, Nadezda Tarakina, Jiayin Yuan, Markus Antonietti
Summary: By creating lamellar membranes with adaptive subnanochannels using polycation pillaring, researchers have overcome the selectivity-permeability trade-off in forward osmosis for traditional carbon nitride membranes. This finding positions carbon nitride as a rising building block to expand the functionality of 2D membranes for water desalination and purification applications.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Liyuan Liu, Hannes Zschiesche, Markus Antonietti, Barbara Daffos, Nadezda V. Tarakina, Mathieu Gibilaro, Pierre Chamelot, Laurent Massot, Benjamin Duployer, Pierre-Louis Taberna, Patrice Simon
Summary: The unique properties of 2D MXenes, such as metal-like electrical conductivity and versatile surface chemistry, make them attractive for various applications, including energy storage. In this study, O-free, Cl-terminated MXenes were synthesized via a molten salt etching route and then the surface termination was changed from Cl to N through post-thermal treatment. The modified MXenes showed unique electrochemical characteristics and achieved high-performance electrodes for energy storage.
ADVANCED ENERGY MATERIALS
(2023)
Article
Polymer Science
Ainhoa Alvarez-Gomez, Jiayin Yuan, Juan P. Fernandez-Blazquez, Veronica San-Miguel, Maria B. Serrano
Summary: The use of block copolymers as sacrificial templates for obtaining porous carbons as electrode materials has been demonstrated in this study. The resulting porous carbon fibers showed superior pore formation capability and exhibited a hierarchical porous structure, with high surface area and outstanding electrochemical performance.
Article
Chemistry, Multidisciplinary
Bradley D. Frank, Markus Antonietti, Paolo Giusto, Lukas Zeininger
Summary: This study presents a simple strategy to control chemical gradients in solutions using local photo-electric surface charging of organic semiconducting thin films. By irradiating carbon nitride thin films with ultra-violet light, sustained surface charges are generated in illuminated regions, inducing chemical gradients in adjacent solutions. Experimental measurements show that these gradients respond to changes in temperature, chemistry, and concentration.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Si -hua Liu, Hong Wang, Jian-ke Sun, Markus Antonietti, Jiayin Yuan
Summary: This article presents the recent progress and applications of 1,2,4-triazolium-type poly(ionic liquid)s (SHAs). SHAs enhance performance profiles through the formation of smart hydrogen atoms and can be used for materials design at the nano-, micro-, and macroscopic scales. At the nano scale, SHAs can manipulate the shape and surface properties of nanocolloids. At the micro and macro scales, SHAs catalyze single crystal formation of structurally complex organics and enable the fabrication of functional supramolecular porous polyelectrolyte membranes.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Polymer Science
Manuel Reiter, Atefeh Khorsand Kheirabad, Miriam M. Unterlass, Jiayin Yuan
Summary: A series of siloxane-based poly(ionic liquid)s with low glass transition temperatures were synthesized via a multicomponent reaction. These PILs were combined with vinylimidazolium-based PILs to fabricate porous membranes, enhancing the mechanical performance.
Article
Chemistry, Physical
Liyang Wan, Kuangmin Zhao, Yu-Cheng Wang, Nian Wei, Pengyang Zhang, Jiayin Yuan, Zhiyou Zhou, Shi-Gang Sun
Summary: This study provides a clear understanding of the degradation mechanism of FePc during acidic oxygen reduction reaction (ORR), which is essential for future investigations on the performance degradation of practical Fe/N/C catalysts.
Article
Chemistry, Applied
Chun-Yu Qiu, Li-yang Wan, Yu-Cheng Wang, Muhammad Rauf, Yu-Hao Hong, Jia-yin Yuan, Zhi-You Zhou, Shi-Gang Sun
Summary: This study evaluated the H2O2-tolerance of non-Pt oxygen reduction reaction (ORR) catalysts and investigated the mechanism of H2O2-induced decay. An electrochemical probe method was established to in-operando monitor the H2O2 concentration in non-Pt catalyst layers for the first time, revealing a concentration of 17 mmol/L, which is an order of magnitude higher than that under aqueous electrode test conditions. Based on these findings, a concentration criterion of at least 17 mmol/L is suggested, filling the gap between aqueous electrode tests and real fuel cell working conditions and emphasizing the importance of in-operando monitoring methods.
CHINESE JOURNAL OF CATALYSIS
(2022)
