Article
Biochemistry & Molecular Biology
Robert H. Pelton, Gaoyin He, Lei Tian, Chaochen Song, Zeinab Hosseinidoust
Summary: This study introduces the research progress of anionic water-soluble polychloramide biocides and proposes a polymer-modified Chick-Watson model to explain disinfection kinetics. Experimental evidence supports the conclusions that lower molecular weight polymers and more compressed polymer structures have better biocidal effects.
Article
Polymer Science
Yucen Zuo, Yufeng Yao, Chunyu Chen, Yixin Liang, Ke-Fang Yang, Ze Li, Guo-Qiao Lai, Pinglu Zhang, Tien-Yau Luh
Summary: The substituents on cyclopropenes and catalysts have a significant impact on the reactivity and selectivity of ring-opening metathesis polymerization (ROMP). In this study, different chemoselectivities were observed when using piperidine-appended spirocyclopropenes (SCPs) and various Grubbs catalysts. The conformational difference between the piperidine and azetidine motifs plays a crucial role in determining the reactivity, selectivity, and polymerization pathway. This work provides insights into the mechanism of chemoselective ROMP of spirocyclopropenes using Grubbs catalysts and offers guidance for designing new ROMP reactions.
Article
Polymer Science
Yuhsaku Okabe, Takeshi Yamada, Sentaro Okamoto
Summary: This study demonstrates that nickel complexes with sterically demanding ligands can catalyze the cycloaddition oligomerization of 1,6-heptadiynes to selectively produce medium-size cyclic polyenes with narrow molecular dispersity and minimal side reactions. The resulting cyclic polyenes exhibit non-conjugated behavior, while thermally isomerized cyclic polyenes show conjugated behavior. The oligomerization reaction has wide functional group compatibility, allowing for the production of medium-size cyclic polyenes with various functional groups. A plausible reaction mechanism explaining the narrow polydispersity is proposed.
Article
Engineering, Biomedical
Enosha Harshani De Silva Galappaththi Guruge, Narges Salamat, Li Zhang, Jie Zheng, Bruce M. Novak
Summary: Water-soluble neutral and polyelectrolyte helical polycarbodiimides were successfully synthesized and studied for their biological properties, such as potential antimicrobial and cytotoxic effects. The polymers showed promising results in inhibiting fungal growth and biofilm formation, as well as exhibiting significant cytotoxicity against cancer cells. The functionalization and chirality of polycarbodiimides were identified as key factors influencing their anticancer and antifungal activities.
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
(2021)
Article
Polymer Science
Debora Quadretti, Martina Marinelli, Elisabetta Salatelli, Filippo Pierini, Alberto Zanelli, Massimiliano Lanzi
Summary: Three new ionic polythiophene derivatives soluble in polar solvents are synthesized and investigated as interfacial cationic conjugated polyelectrolyte (CPE) layers for halogen-free bulk heterojunction polymeric solar cells. The insertion of the CPE interlayer between the active layer and the aluminum cathode dramatically improves the power conversion efficiency of the final device by reducing the electrode work function, enhancing electron extraction, and optimizing the layer morphology. This study demonstrates the effectiveness of incorporating CPE layers for the development of highly efficient and eco-friendly polymeric solar cells.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Polymer Science
Zeeshan Arshad, Shaikh A. Ali
Summary: In this study, dopamine hydrochloride was successfully converted to monomer N,N-diallyldopamine hydrochloride and then polymerized to form homocyclopolymer and copolymer. The copolymer exhibited excellent corrosion inhibition properties, especially when iodide ions were present. The presence of dopamine motifs in the copolymer resulted in increasing corrosion protection.
Article
Engineering, Environmental
Drishna Sainju, Robert Lucas, Adam Le Gresley
Summary: This study reports for the first time the application of Nuclear Magnetic Resonance (NMR) method to identify, characterize and quantify water-soluble polymers (WSPs) in real-world samples. The method was successfully used to detect and analyze polyethylene glycol (PEG), polyacrylamide (PAM) and polyacrylic acid (PAA) in different river water samples. This work is of great importance for future studies on evaluating the biological impact of WSPs on aquatic organisms.
Article
Chemistry, Multidisciplinary
James D. Sheehan, Elvis Ebikade, Dionisios G. Vlachos, Raul F. Lobo
Summary: Depolymerized lignins from different sources were transformed into biodegradable, water-soluble polymers (WSPs) by grafting hydrophilic L-lysine to their aromatic framework via the Mannich reaction. The size of the WSPs in aqueous solutions was sensitive to pH, and the zwitterionic properties of the WSPs allowed for tunable control of the hydrodynamic radii. The lignin-based WSPs showed high efficacy in reducing the turbidity of clay mineral suspensions, and all three types of WSPs were biodegradable.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Thomas A. Welsh, Emily R. Draper
Summary: Organic materials offer advantages over transition metal oxides in electrochromic device applications, but the use of organic solvents in their processing presents challenges due to their flammability and toxicity. Developing water soluble organic materials is crucial for long-term economic and environmental sustainability of organic electronics research.
Article
Chemistry, Physical
Ruiying Wu, Shuai Zhang, Qi Song, Yebang Tan
Summary: The hydrophobically associating water-soluble terpolymer was synthesized through free-radical copolymerization and crosslinking, exhibiting high viscosity maintained at high salinity and shear rate.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Applied
Adrian Perez, Emily Kynaston, Christopher Lindsay, Nicholas Ballard
Summary: This study investigates the influence of alkali soluble resins (ASRs) on the mechanical properties of latex films. It is found that the composition of the copolymer phase has little effect on the Young's modulus, while the high Tg ASR phase plays a key role. Increasing the Tg of the copolymer phase leads to higher elongation break and tougher materials. Polar additives in coatings formulations selectively plasticize the polar ASR phase, resulting in a significant decrease in mechanical performance.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Polymer Science
Xiao Wu, Zhen Hu, Paul Bicho, Erin A. S. Doherty, Richard J. Riehle, Sachin Borkar, Jose Moran-Mirabal, Robert H. Pelton
Summary: A library of hydrophobically modified polyelectrolytes was prepared by reacting linear alkyl amines with poly (ethylene-alt-maleic anhydride), followed by hydrolysis of the residual anhydride groups. The length of the alkyl side chains was found to be the main factor influencing the aqueous solution properties. These polymers can potentially form ester linkages with cellulose.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Engineering, Chemical
Vahid Vajihinejad, Sarang P. Gumfekar, Daniel V. Dixon, Marco Antonio Silva, Joao B. P. Soares
Summary: This study investigates the flocculation of oil sands mature fine tailings (MFT) using poly(VBTMAC) as a flocculant, showing that the polymer's hydrophobic nature and positive charges contribute to neutralizing the negative charges of MFT clays and forming larger aggregates. The results demonstrate that poly(VBTMAC) outperforms commercially available anionic polyacrylamides in terms of production ease, dewatering rate, and sediment strength, but requires higher dosages for better performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Mohsen Mirzaie Yegane, Julia Schmidt, Fatima Dugonjic-Bilic, Benjamin Gerlach, Pouyan E. Boukany, Pacelli L. J. Zitha
Summary: The study examined the impact of preshearing on the flow properties of polymer solutions, revealing that presheared solutions exhibit reduced viscosity and screen factor independent of the shearing device. Numerical modeling successfully explained the enhanced flow of presheared polymer solutions through sand packs, attributing it mainly to the breaking of longest polymer chains.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Alexei D. Filippov, Joris Sprakel, Marleen Kamperman
Summary: The research discusses the control of viscous and elastic behavior in the application of complex coacervates in areas such as coatings and surgical glues, and proposes a model with customizable rheological characteristics. It is found that when the contribution of metal-ligand bonds is dominant at long times, the relaxation of the overall complex is significantly slower.
Article
Chemistry, Multidisciplinary
Shaikh A. Ali, Mohammad A. J. Mazumder, Mazen K. Nazal, Hasan A. Al-Muallem
ARABIAN JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Analytical
Shamsuddeen A. Haladu, Nuhu Dalhat Mu'azu, Nabeel Jarrah, Mukarram Zubair, Shaikh A. Ali
Summary: In this study, a biodegradable chelant, polyaspartate, was synthesized and utilized for the removal of lead from polluted soil. The optimal removal efficiency was found to be 90%, with higher removal efficiency associated with lower initial pH, increased lead ion concentration, and higher polyaspartate/soil ratio.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Nurudeen A. Odewunmi, Mohammad A. Jafar Mazumder, Shaikh A. Ali, Norah A. Aljeaban, Bader G. Alharbi, Abdulaziz A. Al-Saadi, Ime B. Obot
Review
Chemistry, Multidisciplinary
Nedal Abu-Thabit, Elaref Ratemi
FRONTIERS IN CHEMISTRY
(2020)
Article
Polymer Science
Ibrahim Y. Yaagoob, Mohammed K. Aldahdooh, Ali A. Al-Taq, Hasan A. Al-Muallem, Mohammad A. J. Mazumder, Shaikh A. Ali
Summary: The study showed that a series of new pH-responsive alternate copolymers can be synthesized through cyclopolymerization, some of which exhibit excellent antiscalant properties in reverse osmosis plants, and also demonstrate some corrosion inhibition efficiency in mildly acidic environments.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Nurudeen A. Odewunmi, Mohammad A. Jafar Mazumder, Shaikh A. Ali, Bader G. Alharbi
Summary: A study investigated the synthesis of two new inhibitor molecules through quaternization, and evaluated their corrosion inhibition performance on X-60 mild steel in acidic environments. One of the inhibitors, PDAB, showed excellent corrosion inhibition efficiency at low concentrations, with SEM and EDX analyses revealing the mechanism of protective film formation.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Applied
Mohammed K. Aldahdooh, Shaikh A. Ali
Summary: In this study, two water-insoluble poly(bis-zwitterion) polymers were synthesized by reacting a bis-cationic monomer with different chemical compounds and turning them into water-soluble with the assistance of salts. These polymers exhibited specific solubility properties within certain pH ranges, showing potential scale inhibition and corrosion protection effects.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Nurudeen A. Odewunmi, Mohammad A. J. Mazumder, Shaikh A. Ali
Summary: 1-Hexadecylbenzimidazole (HDBI) was evaluated as an effective corrosion inhibitor for low carbon steel (LCS) in 15% HCl solution, achieving 97% corrosion inhibition efficiency at 25 degrees C with a concentration of 50 mg L-1. The adsorption of HDBI on LCS was predicted to be chemisorption, supported by the Langmuir isotherm model and thermodynamic study. Additionally, X-ray photoelectron spectroscopy (XPS) and surface morphology analysis with a flame emission scanning electron microscope integrated with an energy dispersive spectrometer (FESEM-EDX) were used to examine the chemical state of the adsorbed HDBI on the LCS surface.
Article
Chemistry, Physical
Nurudeen A. Odewunmi, Mohammad A. J. Mazumder, Mohammed K. Aldahdooh, Shaikh A. Ali
Summary: A bis-quaternary ammonium bromide, TDAB, was synthesized and characterized. It exhibited high inhibition efficiency in HCl solution and showed synergistic interaction with iodide ion. SEM and XPS analysis confirmed its adsorption on mild steel surface for protection.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Ibrahim Y. Yaagoob, Mohammad A. J. Mazumder, Hasan A. Al-Muallem, Shaikh A. Ali
Summary: The study synthesized a high-performance resin with excellent adsorption capabilities for PRH and Cd(II) ions in industrial dye wastewater, demonstrating remarkable potential for sustainable recycling and reuse.
JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING
(2021)
Review
Biotechnology & Applied Microbiology
Nedal Y. Abu-Thabit, Cristina Perez-Rivero, Onyinye J. Uwaezuoke, Ndidi C. Ngwuluka
Summary: In the past fifty years, environmental pollution caused by non-biodegradable petroleum-based plastics has become a serious threat to marine life and human health. Solutions to plastic pollution are urgently needed to reduce soil and water contamination. Developing alternative biodegradable plastics derived from renewable resources is an emerging research focus that can alleviate the accumulation of plastic waste in the environment.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
Nedal Y. Abu-Thabit, Onyinye J. Uwaezuoke, Mahmoud H. Abu Elella
Summary: The industrial revolution has resulted in various types of environmental pollution, and the treatment of oil-polluted water is of great importance. In recent years, advanced superwetting materials have been utilized for oily wastewater treatment. This review provides a summary of the latest developments in fabricating superhydrophobic/superoleophilic nanohybrid materials for oil/water separation, focusing on different classes of low surface energy materials. The review also highlights the current limitations and suggests future research directions.
Article
Materials Science, Multidisciplinary
Nedal Y. Abu-Thabit, Abdul Kalam Azad, Khaled Mezghani, Abbas S. Hakeem, Qasem A. Drmosh, Sultan Akhtar, Akeem Yusuf Adesina
Summary: A simple and environmentally friendly method was developed for fabricating superhydrophobic polyacrylonitrile nonwoven fabric for oil/water separation. The modified fabric exhibited high hydrophobicity, chemical stability, and mechanical durability, and showed excellent oil absorption capacity, high separation efficiency, and stable performance.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Materials Science, Paper & Wood
Mahmoud H. H. Abu Elella, Nedal Y. Y. Abu-Thabit, Onyinye J. J. Uwaezuoke, Abdul Kalam Azad
Summary: The development of multifunctional materials for oil/water separation is a fast-growing research area to remediate oil-polluted water. Superwetting cotton textile materials are fabricated for water/oil separation. The principles of selective water/oil separation and the fabrication processes for superwetting performance are highlighted. Smart cotton fabrics with controllable and switchable wettability are presented, and methods for evaluating their durability are discussed. Future studies should focus on the fabrication of cotton textiles with smart, switchable, and controllable wettability and the utilization of Janus cotton textiles.
Article
Chemistry, Physical
Dheeraj Singh Chauhan, Mumtaz A. Quraishi, Mohammad A. Jafar Mazumder, Shaikh A. Ali, Norah A. Aljeaban, Bader G. Alharbi
JOURNAL OF MOLECULAR LIQUIDS
(2020)
