Unusual kinetics of poly(ethylene glycol) oxidation with cerium(iv) ions in sulfuric acid medium and implications for copolymer synthesis
文献情報
Jan K. Szymański, Fernando Temprano-Coleto
The cerium(IV)–alcohol couple in an acidic medium is an example of a redox system capable of initiating free radical polymerization. When the alcohol has a polymeric nature, the outcome of such a process is a block copolymer, a member of a class of compounds possessing many useful properties. The most common polymer with a terminal –OH group is poly(ethylene glycol) (PEG); however, the detailed mechanism of its reaction with cerium(IV) remains underexplored. In this paper, we report our findings for this reaction based on spectrophotometric measurements and kinetic modeling. We find that both the reaction order and the net rate constant for the oxidation process depend strongly on the nature of the acidic medium used. In order to account for the experimental observations, we postulate that protonation of PEG decreases its affinity for some of the cerium(IV)–sulfate complexes formed in the system.
おすすめジャーナル

Main Group Chemistry

Journal of the Indian Institute of Science

Bioorganic & Medicinal Chemistry Letters

Biocatalysis and Biotransformation

Topics in Catalysis

Acta Metallurgica Sinica-English Letters

NDT & E International

Journal of Chemical Sciences

Critical Reviews in Solid State and Materials Sciences

Cellulose
関連文献
Effects of pore structures on a phenolic resin-derived self-supported electrode for highly efficient electroreduction of CO2 to syngas
Haowen Chen, Junwei Zhang, Kang Wang, Xitao Wang
DOI: 10.1039/D3SE01574B
Polystyrene-based catalysts with simultaneous Brønsted and Lewis acidity for hydroxymethylfurfural production from starch: molecular weight and solvent effects
Ibeh S. Omodolor, Nkem O. Ofole, Sarah A. Walz, Maria R. Coleman, Ravikumar Gogar, Sridhar Viamajala, Francielle C. F. Marcos
DOI: 10.1039/D3SE01164J
Correlated proton dynamics in hydrogen bonding networks: the benchmark case of 3-hydroxyglutaric acid
Bruno Martínez-Haya, Juan Ramón Avilés-Moreno, Francisco Gámez, Jonathan Martens, Jos Oomens, Giel Berden
DOI: 10.1039/D3CP04514E
Simulation of exciton spectra in disordered supramolecular polymers: exciton localization in cisoid indolenine squaraine hexamers
David Fischermeier, Arthur Turkin, Joshua Selby, Roland Mitrić
DOI: 10.1039/D3CP04557A
Two-dimensional ternary pentagonal BCX (X = P, As, and Sb): promising photocatalyst semiconductors for water splitting with strong piezoelectricity
Luqi Liu, Xuxin Kang
DOI: 10.1039/D3CP04866G
Honeycomb-like hollow carbon loaded with ruthenium nanoparticles as high-performance HER electrocatalysts
Peng-Cheng Ji, Yang Teng, Hong-Cheng Li, Ming-Yun Guan, Hai-Lang Jia
DOI: 10.1039/D3SE01343J
Theoretical insights into surface-phase transition and ion competition during alkali ion intercalation on the Cu4Se4 nanosheet
Yang-Xin Yu
DOI: 10.1039/D3CP05423C
Valorisation of residual biomass by pyrolysis: influence of process conditions on products
A. C. M. Vilas-Boas, L. A. C. Tarelho, H. S. M. Oliveira, F. G. C. S. Silva, D. T. Pio, M. A. A. Matos
DOI: 10.1039/D3SE01216F
Direct thermodynamic characterization of solid-state reactions by isothermal calorimetry
Marija Cvetnić, Robert Šplajt, Edi Topić, Mirta Rubčić, Nikola Bregović
DOI: 10.1039/D3CP03933A
CeO2-supported multi-nuclear NbxSy clusters for hydrogen evolution reaction
Hongxian Liu, Chencheng Zhao, Hong Li, Xuelan Li, Xianfeng Mu, Dunhua Hong, Furu Zhong, Zhenxing Fang, Yanning Zhang
DOI: 10.1039/D3SE01241G
こちらもおすすめ
N,N-二乙基-4-ブロモナフサルレン-1-カルボニルアミドはどのように合成されますか?
N,N-二乙基-4-ブロモナフサルレン-1-カルボニルアミドは、4-ブロモナフサルビンとN,N-ジエチルアミド基を有する反応物を用いて合成されます。触媒の使用は...
大黄酚-8-O-葡萄糖苷の市場動向や研究トレンドはどうですか?
大黄酚-8-O-葡萄糖苷の市場は、医薬品、機能食品、研究化学物質としての需要が高まっています。特に、その抗炎症作用や抗ウイルス作用に関する研究が増えています。価...
アトラキュリウム不純物5塩酸塩の物理化学的性質は何ですか?
アトラキュリウム不純物5塩酸塩のCAS番号は2048273-58-9です。この化合物は結晶性であり、分子量は約435.4 g/molです。水に溶けやすく、反応性...
2-イソブチルシクロヘキサン酮とは何ですか?
2-イソブチルシクロヘキサン酮は、CAS番号39207-65-3の化合物で、化学式はC11H20Oです。この化合物は、有機合成化学において重要な原料として使用さ...
2-溴-6-甲基烟酸を取り扱う際の実験室安全事項は何ですか?
この化合物は毒性と刺激性があります。密閉されたドラフトチャンバー内で処理し、PPE(ゴーグル、手袋)を使用してください。漏洩時は即座に通気し、適切な漏洩処理材を...
6-アミノニコニタルデオキシド塩化水和物の物理化学的性質は何ですか?
6-アミノニコニタルデオキシド塩化水和物のCAS番号は1588441-31-9です。この化合物は結晶性粉末で、分子量は220.63 g/molです。水に溶けやす...
塩酸中毒藜碱はどのように合成されますか?
塩酸中毒藜碱は、ピペリジンとピリジンの反応により合成されます。具体的には、ピペリジンとピリジンを反応させ、塩基触媒を使用してピペリジン環内 enters 3-ピ...
Methyl 4-(6-formyl-2-pyridinyl)benzoateに適用される法規ガイドラインは何ですか?
この化合物はCAS番号834884-81-0で、GHS分類では高毒性の危険性を持つと見なされます。REACH規則では登録が求められ、FDA/EPAでは環境、健康...
1-エチynyル-3-(三氟甲氧基)ベンゼンについて「に適用される法規ガイドラインは何ですか」
CAS番号 866683-57-0の1-エチynyル-3-(三氟甲氧基)ベンゼンは、GHS分類では易燃性化学品が該当し、REACH規則では特定の危険性を評価する...
メチル2-ブロモイソニコネートの代替品はありますか?
メチル2-ブロモイソニコネートの代替品には、メチルイソニコネートや他のブロモ化合物が含まれます。これらの代替物は、特定の用途に応じて選択されます。
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
![Sodium 4-{[(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl]oxy}-4-oxobutanoate structure Sodium 4-{[(2R,3R)-2-[(dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl]oxy}-4-oxobutanoate structure](https://static.chemtradehub.com/structs/982/982-57-0-e747.webp)
![[4-(Hydroxymethyl)phenyl]acetic acid structure [4-(Hydroxymethyl)phenyl]acetic acid structure](https://static.chemtradehub.com/structs/734/73401-74-8-5a54.webp)
![Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) butyl[4-hydroxy-3,5-bis(2-methyl-2-propanyl)benzyl]malonate structure Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) butyl[4-hydroxy-3,5-bis(2-methyl-2-propanyl)benzyl]malonate structure](https://static.chemtradehub.com/structs/638/63843-89-0-665e.webp)

