Article
Materials Science, Composites
Isao Yamaguchi, Tomohiro Hirota, Aohan Wang
Summary: In this study, treatment of graphene oxide (GO) with 4-aminophenyl groups (AP) yielded an ammonium radical cation (GO-AP(.+)), leading to the successful synthesis of water-soluble GO composites. These composites, grafted with poly(4-sulfopropyl)aniline and poly(4-sulfopropyl)aniline-co-aniline, exhibited certain optical properties and electrochemical behaviors.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Selena Silvano, Incoronata Tritto, Simona Losio, Laura Boggioni
Summary: In this study, the synthesis of poly(S-dipentene) with a high sulfur content was achieved for the first time using zinc-based accelerators. The addition of bio-based dienes as crosslinkers resulted in stable ter-polymers with improved properties. These ter-polymers showed shape persistence and the ability to remove ferric ions from aqueous solutions, making them promising for applications in wastewater purification.
Article
Polymer Science
Oliver B. Penrhyn-Lowe, Sean Flynn, Savannah R. Cassin, Samuel Mckeating, Sarah Lomas, Stephen Wright, Pierre Chambon, Steve P. Rannard
Summary: The translation discusses the innovation opportunities provided by complex macromolecular architectures in forming new polymers with novel behavior, emphasizing the use of existing commercial feedstocks and the impact of taxogen dimensions on TBRT outcomes. Notably, the differences in gelation behaviors were correlated to the dimensions of the taxogen, highlighting the shifting balance of intermolecular and intramolecular branching processes during TBRT.
Article
Chemistry, Multidisciplinary
Izabela Zaborniak, Martyna Korbecka, Zuzanna Michno, Pawel Chmielarz, Krzysztof Matyjaszewski
Summary: In this study, a high molecular weight water-soluble polymer was synthesized through polymerization in a vegetable oil-based inverse emulsion, resulting in low dispersity and high molecular weight. This approach offers advantages in terms of environmental friendliness and can replace toxic organic solvents.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Polymer Science
Vitalii Serdiuk, Oleh Shevchuk, Kovalenko Tetiana, Natalya Bukartyk, Viktor Tokarev
Summary: In this study, a series of reactive copolymers with peroxide functionality were synthesized and their effects on copolymerization kinetics, physico-chemical properties, and cross-linking ability were investigated. The results showed that these copolymers exhibited surface-active properties and could cross-link water-soluble polymers.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Tetsuya Yamamoto, Kazuya Tsutsumi
Summary: A template-free method for the synthesis of hollow polymer and silica particles was developed in this study, involving the preparation of polystyrene core particles through soap-free emulsion polymerization and the synthesis of silica shells through a sol-gel reaction. Voids were formed inside the particles by the decomposition of V-59, without the need for surfactants, organic solvents, or templates.
Article
Chemistry, Organic
Max Born, Thomas C. Fessard, Lucas Goettemann, Jakob Plank, Thomas M. Klapoetke
Summary: This study presents a new method for the synthesis of poly(3-azidooxetane), which offers increased yield and improved safety compared to its precursor, 3-azidooxetane. The thermal behavior, energetic performance, plasticizer compatibility, and curing of poly(3-azidooxetane) were thoroughly investigated, and it was found to be a suitable substitute for GAP, with potentially more environmentally friendly properties.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Maxim V. V. Zabalov, Badma N. N. Mankaev, Mikhail P. P. Egorov, Sergey S. S. Karlov
Summary: Density functional theory simulations were conducted to investigate the ring-opening copolymerization of epsilon-caprolactone and L-lactide using a novel gallium complex with an aminobis(phenolate) ligand. The results show that the copolymerization with this catalyst exhibits a faster polymerization rate for epsilon-caprolactone than for L-lactide, suggesting the formation of a predominantly block copolymer composed of epsilon-caprolactone and L-lactide.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
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
Polymer Science
Yanlin Shi, Chanaka J. Mudugamuwa, Thidas N. Abeysinghe, Yasser S. M. Alotaibi, Michael J. Monteiro, Justin M. Chalker, Jodie L. Lutkenhaus, Zhongfan Jia
Summary: This study highlights the importance of charge effects on the electrochemical behavior of water-soluble redox polymers, showing that charges dictate the diffusion coefficients and charge transfer kinetics of these materials at different pH levels. The results suggest that electrostatic interactions between charged segments can greatly enhance the electron self-exchange reaction rate in redox-induced polymer films.
Article
Chemistry, Physical
Yongmin Zhang, Meng Mu, Yue Zhou, Huan Xie, Shanjuan Zhao
Summary: By investigating the hydrophilicity change of a selenium-containing alcohol and its effect on the stability of microemulsions, it was found that the redox reaction of this selenium-containing alcohol can efficiently switch the stability of microemulsions, providing a new nanoplatform for the delivery of bioactive substances.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Jiawei Chen, Wenbing Wang, Yao Pan, Dan Peng, Yougui Li, Chen Zou
Summary: In this study, direct copolymerization of plant oil-based copolymer monomers with ethylene was achieved using a dienyl phosphoribosulfonyl palladium catalyst (PO-Pd). Addition, ureido-pyrimidinone (UPy) functionalization was performed using the hydroxyl group of the polymer. The incorporation of biomass groups effectively modifies the surface and mechanical properties of the copolymers, and these newly developed polymers are ideal tougheners for gutter oil due to their excellent tunability of the self-complementary hydrogen bonding network (UPy).
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)
Article
Chemistry, Multidisciplinary
Evelyn Y. Calvillo-Munoz, Araceli Vega-Paz, Diego Guzman-Lucero, Irina Lijanova, Octavio Olivares-Xometl, Natalya Likhanova
Summary: The synthesis of water-soluble terpolymers by free-radical inverse microemulsion and solution polymerization techniques was investigated. The results showed that the solution method yielded terpolymers with higher molecular weights at lower temperatures, while the inverse microemulsion method incorporated more (vinylbenzyl)trimethylammonium chloride into the terpolymer structure.
Review
Chemistry, Inorganic & Nuclear
Antal Udvardy, Ferenc Joo, Agnes Katho
Summary: The compound 1,3,5-Triaza-7-phosphaadamantane (pta, phosphaurotropine) has played a crucial role in the development of aqueous organometallic chemistry and catalysis due to its easy synthesis, oxidation stability, versatile functionalization possibilities, and high solubility in both water and common organic solvents. It has been used to synthesize transition metal complexes and has been employed as catalysts in various important aqueous-phase processes, contributing significantly to the advancement of green chemical processes.
COORDINATION CHEMISTRY REVIEWS
(2021)
