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1. Preparation and physicochemical characterization of deep eutectic solvents and ionic liquids for the potential absorption and biodegradation of styrene vapors

Author:
M. Candia-Lomelí; I. Covarrubias-Garcia; A. Aizpuru; S. Arriaga
Source:
Journal of hazardous materials 2023 v.441 pp. 129835
ISSN:
0304-3894
Subject:
styrene,   etc   ; absorption; adjuvants; air; batch systems; biodegradability; biodegradation; bioreactors; decanoic acid; hydrophobicity; mass transfer; mineralization; solubility; tetrabutylammonium compounds; toxicity;     Show all 15 Subjects
Abstract:
... Styrene emissions can be treated by physicochemical, biological, or physicochemical/biological means. Due to its low solubility in water an alternative to eliminate styrene emissions from air is the use of two-phase partitioning bioreactors (TPPBs) which comprised a hydrophobic non-aqueous phase (NAP) which can improve mass transfer of styrene. This study was devoted to prepare and evaluate the ma ...
DOI:
10.1016/j.jhazmat.2022.129835

2. Electro-templating of prussian blue nanoparticles in PEDOT:PSS and soluble silkworm protein for hydrogen peroxide sensing

Author:
Sinan Uzunçar; Hüseyin Kaç; Metin Ak
Source:
Talanta 2023 v.252 pp. 123841
ISSN:
0039-9140
Subject:
styrene,   etc   ; biosensors; detection limit; electrochemistry; electrodes; fuel cells; glass; hydrogen peroxide; indium; nanoparticles; polymerization; silkworms; sulfonic acids; tap water; tin; water solubility;     Show all 16 Subjects
Abstract:
... Herein, we demonstrate a high-accuracy H₂O₂ selective organic-inorganic 3D-heterointerface based on catalytically in-situ reduced Prussian-blue nanoparticles (PBNPs), Poly (3,4-ethylene dioxythiophene):poly (styrene sulfonic acid) (PEDOT:PSS) and water-soluble Silkworm protein (SWp). PBNPs were immobilized on an indium tin oxide-coated glass (ITO) electrode through the electrochemical polymerizati ...
DOI:
10.1016/j.talanta.2022.123841

3. A field investigation into the characteristics and formation mechanisms of particles during the operation of laser printers and photocopiers

Author:
Qiang Wang; Daizhi An; Zhengquan Yuan; Rubao Sun; Wei Lu; Lili Wang
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 697-707
ISSN:
1001-0742
Subject:
styrene,   etc   ; aerosols; China;     Show all 3 Subjects
Abstract:
... Indoor particle release from toner printing equipment (TPE) is a major health concern and has received wide attention. In this study, nine printing centers were randomly selected and three working phases were simulated, namely, non-working, normal printing/copying, and heavy printing/copying. The dynamics of the ozone (O₃), volatile organic compound (VOC), and particle emissions from TPE were dete ...
DOI:
10.1016/j.jes.2022.05.007

4. Photo-catalyzed acetoxysulfoximination of styrene with sulfoximidoyl thianthrenium salt

Author:
Yu-Ming Yang; Cairong Zhang; Hanlun Yang; Zhen-Yu Tang
Source:
Chemical communications 2022 v.58 no.61 pp. 8580-8583
ISSN:
1364-548X
Subject:
styrene,   etc   ; catalysts; electron transfer;     Show all 3 Subjects
Abstract:
... We report the design and synthesis of a redox-active thianthrenium-containing sulfoximination reagent. Photo-catalyzed acetoxysulfoximination of styrene with various functional groups is described. Preliminary mechanistic studies indicated that the sulfoximination reagent (2aa) received a single electron transfer (SET) from the photo-excited Ir(ppy)₃ catalyst to produce a sulfoximidoyl radical as ...
DOI:
10.1039/d2cc02542f

5. Cationic Copolymerization of o-Phthalaldehyde and Vinyl Monomers with Various Substituents on the Vinyl Group or in the Pendant: Effects of the Structure and Reactivity of Vinyl Monomers on Copolymerization Behavior

Author:
Keisuke Hayashi; Arihiro Kanazawa; Sadahito Aoshima
Source:
Macromolecules 2022 v.55 no.8 pp. 3276-3286
ISSN:
1520-5835
Subject:
styrene,   etc   ; composite polymers; copolymerization;     Show all 3 Subjects
Abstract:
... Cationic copolymerization of o-phthalaldehyde with various styrene derivatives and vinyl ethers was investigated, particularly focusing on the relationship between the structure and reactivity of vinyl monomers and the copolymerization behavior. In the case of styrene derivatives, the existence of α- or β-substituents (or cyclic structures) on the vinyl group was indispensable for efficient crosso ...
DOI:
10.1021/acs.macromol.2c00470

6. Palladium-catalysed difluoroolefination of benzyl tosylates toward the synthesis of gem-difluoro-2-trifluromethyl styrene derivatives

Author:
Jie Xu; Jiangjun Liu; Gang Chen; Baojian Xiong; Xuemei Zhang; Zhong Lian
Source:
RSC advances 2022 v.12 no.21 pp. 12983-12987
ISSN:
2046-2069
Subject:
styrene,   etc   ; catalytic activity; palladium;     Show all 3 Subjects
Abstract:
... We have presented an efficient method to access gem-difluoro-2-trifluromethyl styrene derivatives via palladium catalysis. This method features mild reaction conditions, broad substrate scope and good product yields. Moreover, gram–scale reactions demonstrated the robustness and potential of this method. Control experiments revealed that the –CF₃ group was essential to the success of this transfor ...
DOI:
10.1039/d2ra02473j

7. DBN-Mediated Addition Reaction of α-(Trifluoromethyl)styrenes with Diazoles, Triazoles, Tetrazoles, and Primary, Secondary, and Secondary Cyclic Amines

Author:
Jingjing He; Chuan Liu; Yupian Deng; Qianding Zeng; Yi Zhang; Ying Liu; Pai Zheng; Song Cao
Source:
Organic letters 2022 v.24 no.12 pp. 2299-2304
ISSN:
1523-7052
Subject:
styrene,   etc   ; methodology; secondary amines; triazoles;     Show all 4 Subjects
Abstract:
... A mild and efficient DBN-mediated addition reaction of α-(trifluoromethyl)styrenes with diazoles, triazoles, tetrazoles, and primary, secondary, and secondary cyclic amines was developed. This practical protocol provided a robust method for the synthesis of various β-trifluoromethyl nitrogen-containing heterocycles and β-trifluoromethyl amines. ...
DOI:
10.1021/acs.orglett.2c00410

8. Functionalized styrene synthesis via palladium-catalyzed C[sbnd]C cleavage of aryl ketones

Author:
Xu Zhang; Zhen-Yu Wang; Xing Wang; Hui Xu; Hui-Xiong Dai
Source:
Tetrahedron letters 2022 v.95 pp. 153721
ISSN:
0040-4039
Subject:
styrene,   etc   ; Suzuki reaction; ligands; potassium;     Show all 4 Subjects
Abstract:
... We report herein the synthesis of functionalized styrenes via palladium-catalyzed Suzuki–Miyaura cross-coupling reaction between aryl ketone derivatives and potassium vinyltrifluoroborate. The employment of pyridine-oxazoline ligand was the key to the cleavage of unstrained CC bond. A variety of functional groups and biologically important moleculars were well tolerated. The orthogonal Suzuki–Miya ...
DOI:
10.1016/j.tetlet.2022.153721

9. Catalyst-Switchable Divergent Synthesis of Bis(indolyl)alkanes and 3-Alkylated Indoles from Styrene Oxides

Author:
Aparna Tyagi; Jabir Khan; Naveen Yadav; Rina Mahato; Chinmoy Kumar Hazra
Source:
Journal of organic chemistry 2022 v.87 no.15 pp. 10229-10240
ISSN:
1520-6904
Subject:
styrene,   etc   ; chemoselectivity; indoles; organic chemistry; spectroscopy;     Show all 5 Subjects
Abstract:
... A novel and effective Brønsted acid-catalyzed chemoselective synthesis of bis(indolyl)alkanes and 3-alkyl indoles is reported. The selectivity of two significant indole derivatives is attained by allowing the same substrates to go through divergent reaction routes catalyzed by different catalysts. Furthermore, this mild approach is applicable to a wide range of substrates and has high efficacy in ...
DOI:
10.1021/acs.joc.2c01204

10. Enantioconvergent hydrolysis of racemic epoxides at elevated concentrations in Tween-20/phosphate buffer by the corresponding epoxide hydrolases

Author:
Bochun Hu; Xiuxiu Zhu; Dong Zhang; Wenqian Lin; Mengdi Wu; Minchen Wu
Source:
Process biochemistry 2022 v.115 pp. 92-99
ISSN:
1359-5113
Subject:
styrene,   etc   ; epoxides; hydrolases; hydrolysis; pH; phosphates;     Show all 6 Subjects
Abstract:
... For effectively actualizing the gram-scale preparation of (R)-phenyl-1,2-ethanediol (PED) via the enantioconvergent hydrolysis of racemic (rac-) styrene oxide (SO) at elevated concentration using whole-cell of E. coli/sleh2, the reaction media were constructed by adding non-ionic surfactants, organic solvents, and deep eutectic solvents into phosphate buffer, respectively. After screening, using c ...
DOI:
10.1016/j.procbio.2022.02.007

11. Rhodium-catalyzed anti-Markovnikov hydrosilylation of alkenes

Author:
Wei Liu; Wenkui Lu; Liqun Yang; Xiaoyu Wu; Zhaoguo Zhang
Source:
Tetrahedron 2022 v.109 pp. 132632
ISSN:
0040-4020
Subject:
styrene,   etc   ; alkenes; catalytic activity; ligands; silanes;     Show all 5 Subjects
Abstract:
... Rh-catalyzed anti-Markovnikov hydrosilylation of terminal alkenes and tertiary silanes using readily-available PPh₃ as the ligand was reported. This method facilitated the effective synthesis of alkylsilanes with a wide substrate scope and high yields. Remarkably, both an unprecedented catalytic efficiency (TON up to 10,000) and excellent selectivity for the reaction of styrene and diethoxymethyls ...
DOI:
10.1016/j.tet.2022.132632

12. Moderate Chain Branching in Waterborne Pressure-Sensitive Adhesives Combines Strain Hardening with Entanglements Formed during Film Formation: A Study Based on Förster Resonance Energy Transfer and Mechanical Testing

Author:
Christopher Hirth; Matthias Gerst; Markus Rückel; Denis Botin; Martina Heinz; Jan C. Namyslo; Jialu Ruan; Jörg Adams; Diethelm Johannsmann
Source:
Macromolecules 2022 v.55 no.14 pp. 6067-6075
ISSN:
1520-5835
Subject:
styrene,   etc   ; adhesion; energy transfer; latex; polymers;     Show all 5 Subjects
Abstract:
... Förster resonance energy transfer (FRET) was employed to study polymer interdiffusion in drying latex dispersions designed for application as pressure-sensitive adhesives. The materials differed in the degree of chain branching, where branching was controlled by the addition of styrene as a retarder. The FRET efficiency, ΦET, quantifies the degree of interdiffusion between particles. A plot of lo ...
DOI:
10.1021/acs.macromol.2c00456

13. Styrene-alkyne cross ene-yne metathesis: Catalyst screening and optimization for unbranched terminal alkyne substrates

Author:
Laurence N. Rohde; Steven T. Diver
Source:
Tetrahedron letters 2022 v.108 pp. 154121
ISSN:
0040-4039
Subject:
styrene,   etc   ; alkynes; carbenes; catalysts; oligomerization; ruthenium;     Show all 6 Subjects
Abstract:
... Cross metathesis between styrenes and unbranched terminal alkynes is reported. Styrene cross metathesis with terminal alkynes that lack branching at the propargylic position are unknown. In general, unbranched terminal alkynes have been problematic in cross metathesis due to competing alkyne oligomerization. A catalyst screen was performed for a variety of Grubbs catalysts to optimize the yield of ...
DOI:
10.1016/j.tetlet.2022.154121

14. Modification of the Crystallization Behavior of Isotactic Polypropylene by Grafting Styrene Segments

Author:
Chenglang Hu; Cong Li; LianFang Feng; XuePing Gu; Jintang Duan; CaiLiang Zhang
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.17 pp. 5876-5884
ISSN:
1520-5045
Subject:
styrene,   etc   ; benzene; crystallization; polypropylenes; process design; temperature;     Show all 6 Subjects
Abstract:
... As a typically semicrystalline polymer, the physical properties of isotactic polypropylene (iPP) are directly related to its crystallization. In this work, styrene (St) is grafted onto iPP chains by reactive processing to modify its crystallization behavior. The St grafting segments disrupt the stereoregularity of the iPP chain, leading to the appearance of a γ-crystal. More interestingly, the pre ...
DOI:
10.1021/acs.iecr.2c00738

15. Polyelectrolyte-based nanofiltration membranes with exceptional performance in Mg2+/Li+ separation in a wide range of solution conditions

Author:
Rongrong He; Shanshan Xu; Ruoyu Wang; Bingyang Bai; Shihong Lin; Tao He
Source:
Journal of membrane science 2022 v.663 pp. 121027
ISSN:
0376-7388
Subject:
styrene,   etc   ; crosslinking; models; nanofiltration; pH; salinity; sulfonates;     Show all 7 Subjects
Abstract:
... To separate Li ⁺ ions from Mg²⁺ ions rich salt-lake brine using nanofiltration (NF), high-performance NF membranes capable of achieving a high Mg²⁺/Li⁺ separation factor in a wide range of solution conditions are critical. In this study, we investigated the impacts of three key solution parameters, including pH, salinity, and Mg²⁺/Li⁺ mass ratio, on the performance of Mg²⁺/Li⁺ separation by poly(s ...
DOI:
10.1016/j.memsci.2022.121027

16. Reactions of Tri-tert-Butylphosphatetrahedrane as a Spring-Loaded Phosphinidene Synthon Featuring Nickel-Catalyzed Transfer to Unactivated Alkenes

Author:
Martin-Louis Y. Riu; André K. Eckhardt; Christopher C. Cummins
Source:
Journal of the American Chemical Society 2022 v.144 no.17 pp. 7578-7582
ISSN:
1520-5126
Subject:
styrene,   etc   ; ethylene; nickel; nuclear magnetic resonance spectroscopy;     Show all 4 Subjects
Abstract:
... Cage-opening reactions of the highly strained tri-tert-butylphosphatetrahedrane (1), shown here to function as a synthon of (tri-tert-butylcyclopropenyl)phosphinidene, are described. Treatment of 1 with a base-stabilized silylene led to the corresponding phosphasilene, which was isolated in 72% yield as a red crystalline solid. Phosphinidene transfer was also observed when 1 (2 equiv) was combined ...
DOI:
10.1021/jacs.2c02236

17. Selective benzylic Cₛₚ₃–H bond activations mediated by a phosphorus–nitrogen PN³P-nickel complex

Author:
Changguang Yao; Tonghuan Zhang; Théo P. Gonçalves; Kuo-Wei Huang
Source:
Chemical communications 2022 v.58 no.10 pp. 1593-1596
ISSN:
1364-548X
Subject:
styrene,   etc   ; ethylbenzene; hydrides; moieties; nickel; potassium; toluene;     Show all 7 Subjects
Abstract:
... In contrast to the typical Cₛₚ₂–H activation, a PN³P-Nickel complex chemoselectively cleaved the benzylic Cₛₚ₃–H bond of toluene in the presence of KHMDS, presumably via an in situ generated potassium benzyl intermediate. Under similar conditions, CO underwent deoxygenation to afford the corresponding nickel cyano complex, and ethylbenzene was dehydrogenated to give styrene and a nickel hydride co ...
DOI:
10.1039/d1cc06507f

18. Structure and Reactivity of One- and Two-Electron Oxidized Manganese(V) Nitrido Complexes Bearing a Bulky Corrole Ligand

Author:
Huatian Shi; Runhui Liang; David Lee Phillips; Hung Kay Lee; Wai-Lun Man; Kai-Chung Lau; Shek-Man Yiu; Tai-Chu Lau
Source:
Journal of the American Chemical Society 2022 v.144 no.17 pp. 7588-7593
ISSN:
1520-5126
Subject:
styrene,   etc   ; X-ray diffraction; ligands; manganese; spectroscopy;     Show all 5 Subjects
Abstract:
... As a strategy to design stable but highly reactive metal nitrido species, we have synthesized a manganese(V) nitrido complex bearing a bulky corrole ligand, [Mnⱽ(N)(TTPPC)]⁻ (1, TTPPC is the trianion of 5,10,15-Tris(2,4,6-triphenylphenyl)corrole). Complex 1 is readily oxidized by 1 equiv of Cp₂Fe⁺ to give the neutral complex 2, which can be further oxidized by 1 equiv of [(p-Br-C₆H₄)₃N•⁺][B(C₆F₅)₄ ...
DOI:
10.1021/jacs.2c02506

19. Characterization and parametric optimization of additive manufacturing process for enhancing mechanical properties

Author:
Amanuel Diriba Tura; Hana Beyene Mamo
Source:
Heliyon 2022 v.8 no.7 pp. e09832
ISSN:
2405-8440
Subject:
styrene,   etc   ; Taguchi method; algorithms; equipment; modulus of rupture;     Show all 5 Subjects
Abstract:
... Additive manufacturing (AM), also known as 3D printing, is a cutting-edge industrial production technique that enables the creation of lighter, stronger components and systems. Fused deposition modeling (FDM) is a popular AM process for creating prototypes and functional components out of common engineering polymers. The mechanical characteristics of printed items are dramatically altered as a res ...
DOI:
10.1016/j.heliyon.2022.e09832

20. Green-Light-Driven Fe(III)(btz)₃ Photocatalysis in the Radical Cationic [4+2] Cycloaddition Reaction

Author:
Yu Jeong Jang; Hyeju An; Seunghee Choi; Jayeon Hong; Seung Hyun Lee; Kwang-Hyun Ahn; Youngmin You; Eun Joo Kang
Source:
Organic letters 2022 v.24 no.24 pp. 4479-4484
ISSN:
1523-7052
Subject:
styrene,   etc   ; Lewis bases; carbenes; cycloaddition reactions; cyclohexenes; photocatalysis;     Show all 6 Subjects
Abstract:
... Green-light-driven Feᴵᴵᴵ(btz)₃ photocatalysis for the radical cationic [4+2] cycloaddition of terminal styrenes and nucleophilic dienes has been investigated. The Fe-MIC (mesoionic carbene) complex forms a ligand-to-metal charge-transfer transition state with relatively high excited-state reduction potentials that can selectively oxidize terminal styrene derivatives. Unique multisubstituted cycloh ...
DOI:
10.1021/acs.orglett.2c01779