Article
Chemistry, Applied
Thuy T. T. Ngo, Eric Besson, Emily Bloch, Sandrine Bourrelly, Richard Llewellyn, Stephane Gastaldi, Philip L. Llewellyn, Didier Gigmes, Trang N. T. Phan
Summary: A new approach for polymer functionalization of ordered mesoporous silicas (OMS) was demonstrated by cocondensation of silica precursor and a functional polymer, using a tailored amphiphilic copolymer as pore template. The novel strategy allows for incorporation of the functional polymer into the mesoporous silica, resulting in materials with high specific surface area and large pores, and acceptable CO2 adsorption capacity with selectivity towards CH4 and N2.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Polymer Science
Hae-Nam Choi, In-Hwan Lee
Summary: This study presents a one-pot synthesis of P3HT-OH via Suzuki-Miyaura catalyst-transfer polycondensation, eliminating the laborious postpolymerization modifications and additional protecting group techniques. Mild reaction conditions with good functional group tolerance allow for the preparation of well-defined P3HT-OH without protective groups or postmodification processes. It is important to maintain a [Pd]/[alcohol initiator] ratio of <= 1 to suppress oxidation of the alcohol group and ensure high end-group fidelity.
Article
Polymer Science
Anca-Dana Bendrea, Luminita Cianga, Demet Goeen Colak, Doina Constantinescu, Ioan Cianga
Summary: The fast-growing demand for new advanced functional polymer materials in modern society can be met by the end-group functionalization of existing conventional polymers. The synthesis of a molecularly complex, grafted architecture through the polymerization of end functional groups allows for a wider range of material properties and tailored special functions. This paper reports on the synthesis and characterization of alpha-thienyl-omega-hydroxyl-end-groups functionalized oligo-(D,L-lactide) (Th-PDLLA) as a macromonomer with shape amphiphile properties.
Article
Engineering, Environmental
Armin Rezayan, Renfeng Nie, Jianshe Wang, Tianliang Lu, Chunbao Charles Xu, Yongsheng Zhang
Summary: This study presents an alternative approach to the selective transformation of cellulose into 5-hydroxymethylfurfural (HMF) without external catalysts. By functionalizing microcrystalline cellulose (MCC) through milling and oxidation pretreatment, a high yield of HMF was achieved under moderate reaction conditions. The study highlights the importance of MCC's characteristics and reaction conditions for HMF synthesis, offering a greener route to produce HMF from cellulose without acid/base catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Francis Perton, Marlene Palluel, Celine Kiefer, Barbara Freis, Damien Mertz, Sylvie Begin-Colin
Summary: The theranostic properties of gold nanoparticles depend on their size, shape, and coating, which can be challenging to achieve. Different synthesis processes were tested to investigate the one-pot synthesis of dendronized GNPs with a size larger than 10 nm. Adjustment of reaction temperature and NaBH4 injection speed affected the size of spherical GNPs, while even with Ostwald ripening treatment, small nuclei were still present alongside larger GNPs. Tuning the pH of gold salt suspensions showed promising results in controlling nucleation and growth steps for dendronized GNPs in a one-pot synthesis.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Lixin Zhang, Xiaoli Dong, Yu Wang, Nan Zheng, Hongchao Ma, Xiufang Zhang
Summary: This study successfully prepared type II SnS2/In2S3 heterojunction photocatalysts using a one-pot hydrothermal method, demonstrating significantly improved photocatalytic performance for organic pollutants and further revealing the charge transfer mechanism.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xiaoxun Liu, Jilin Zhang, Yi Cheng, Xiaoya Zhao, Zi Dai, Guixia Liu
Summary: The incorporation of polyacrylic acid into zeolitic imidazoline frameworks to synthesize ZIF-67-PAA adsorbent shows excellent adsorption performance for crystal violet, with a maximum adsorption capacity of 1606 mg g(-1). The adsorption process is spontaneous and follows the Langmuir isotherm model and pseudo-second-order kinetic model, indicating the potential and efficiency of ZIF-67-PAA as an adsorbent for CV removal.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Zeynab Khazaee, Ali Reza Mahjoub, Amir Hossein Cheshme Khavar
Summary: A new low-cost bimetallic nanoalloy of CuBi was successfully fabricated on carboxylated MWCNTs, demonstrating significantly enhanced visible light-driven photocatalytic removal of fluoroquinolone-type antibiotics (Ciprofloxacin and Ofloxacin) compared to pure CNTs. The ultrathin 2D nanosheets of CuBi alloy were uniformly distributed on the CNTs bundles, contributing to the high photocatalytic oxidation rate of the CuBi-nanoalloy/MWCNTs.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Tobias M. Milzarek, Nieves P. Ramirez, Xing-Yu Liu, Jerome Waser
Summary: Bis(trifluoromethylated)benziodoxoles are widely used cyclic hypervalent iodine reagents with stability and unique chemical properties. However, current methods for accessing them are tedious. This study reports a direct one-pot synthesis of bis(trifluoromethylated) Bx reagents, enabling the synthesis of functionalized reagents.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Zeinab Vojdani, Mohammad H. Mosslemin, Razieh Mohebat, Alireza Hassanabadi
Summary: The reaction between active alkenes and acetylenic esters in the presence of KSeCN at room temperature provides a simple and efficient method for synthesizing highly functionalized selenophenes. This reaction occurs under mild conditions, has a short reaction time, and shows tolerance to various functional groups. The products are fully characterized by multinuclear (H-1, C-13, and Se-77) NMR spectroscopy.
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2023)
Article
Chemistry, Physical
Arijit De, Nirmal Saha, Tanaya Manna, Vidya Singh, Syed Masood Husain
Summary: A biocatalytic cascade involving NostocER and naphthol reductase from Magnaporthe grisea was developed for the reduction of plumbagin and other substrates, achieving high yields and stereoselectivity. The enzymes showed high catalytic efficiency towards specific substrates compared to other enzymes, demonstrating the potential for their application in organic synthesis.
Article
Chemistry, Multidisciplinary
Isobel M. Wilson, Sandeep K. Padamati, Antonia D. Bobitan, Michael J. Porter, Katherine B. Holt
Summary: Carbon surfaces (glassy carbon, graphite, and boron-doped diamond) were functionalized with layers composed of linked pyridinium and pyridine moieties using simple electrochemical reduction of trifluoroacetylpyridinium. The functionalization process allows for rapid screening of surface properties and presents a means to test the specific catalytic performance of pyridinic groups toward key processes such as oxygen and CO2 reduction.
Article
Chemistry, Inorganic & Nuclear
Sornalatha Manickam, Hemalatha Kuzhandaivel, Yogapriya Selvaraj, Manik Clinton Franklin, Karthick Sivalingam Nallathambi
Summary: NiSe and NG-NiSe were prepared as electrode materials for supercapacitors using a hydrothermal technique. NG-NiSe exhibited higher capacitance performance than pure NiSe, attributed to the synergetic effects during one-pot synthesis. Characterization techniques including XRD, FESEM, HRTEM, and XPS were employed to analyze the materials, while electrochemical behaviors were studied using CV, GCD, and EIS spectra, with promising results for NG-NiSe.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Anisoara Oubraham, Daniela Ion-Ebrasu, Felicia Vasut, Amalia Soare, Ioan-Sorin Sorlei, Adriana Marinoiu
Summary: This paper presents the preparation of platinum on a reduced graphene oxide matrix (PtrGO) using the microwave-assisted method with three different pH solutions. The platinum concentration determined by energy-dispersive X-ray analysis (EDX) was 4.32 (weight%), 2.16 (weight %) and 5.70 (weight%), corresponding to pH 3.3, 11.7 and 7.2, respectively. Pt functionalization of reduced graphene oxide (rGO) decreased the rGO specific surface, as shown by Brunauer, Emmett and Teller (BET) analysis.
Article
Chemistry, Organic
Babak Kaboudin, Samaneh Faghih, Sajedeh Alavi, Mohammad Reza Naimi-jamal, Alireza Fattahi
Summary: This study reports a solvent-free synthesis of 1-aminophosphonates via three-component or two-component reactions, and it is found that no solvent or catalyst is needed for the reactions. Furthermore, a novel method for the synthesis of N-deprotected 1-aminophosphonates is developed.
SYNTHESIS-STUTTGART
(2023)
Article
Polymer Science
Kifah Nasr, Julie Meimoun, Audrey Favrelle-Huret, Julien De Winter, Jean-Marie Raquez, Philippe Zinck
Article
Chemistry, Applied
Julie Meimoun, Vincent Wiatz, Rene Saint-Loup, Julien Parcq, Adelina David, Gregory Stoclet, Valerie Gaucher, Audrey Favrelle-Huret, Fanny Bonnet, Philippe Zinck
Summary: A new method for dual functionalization of starch via a one pot one step reaction in aqueous medium achieved grafting of poly(butyl acrylate) or poly(butyl acrylate-co-styrene) onto starch, resulting in copolymers with excellent mechanical properties and dual glass transition temperatures.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Julie Meimoun, Choltirosn Sutapin, Gregory Stoclet, Audrey Favrelle, Pascal Roussel, Marc Bria, Suwabun Chirachanchai, Fanny Bonnet, Philippe Zinck
Summary: The chain shuttling ring-opening copolymerization of L-lactide with epsilon-caprolactone using two aluminum catalysts and benzyl alcohol as a chain transfer agent has been successfully achieved. A newly synthesized aminobisphenolate supported aluminum complex affords lactone rich poly(L-lactide-co-lactone) statistical copolymeric blocks, while Al(OiPr)(3) produces semicrystalline poly(L-lactide) rich blocks. The crystalline ratios and glass transition temperatures of these new classes of polylactide based block copolymers can be tuned by adjusting the catalysts and the comonomers ratio.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biochemistry & Molecular Biology
Julie Meimoun, Yupin Phuphuak, Remi Miyamachi, Yong Miao, Marc Bria, Cyril Rousseau, Guilherme Nogueira, Andreia Valente, Audrey Favrelle-Huret, Philippe Zinck
Summary: Cyclodextrins (CDs) are cyclic oligosaccharides widely used in various fields. This study successfully achieved quantitative functionalization of various types of CDs using 4-dimethylaminopyridine (DMAP) as a catalyst. The inclusion complex formed between DMAP and β-CD was characterized for the first time, and its association constant was estimated.
Article
Materials Science, Multidisciplinary
Kifah Nasr, Audrey Favrelle-Huret, Rosica Mincheva, Gregory Stoclet, Marc Bria, Jean-Marie Raquez, Philippe Zinck
Summary: This study successfully synthesized several DEFDC biobased semiaromatic copolyesters with variable interesting properties and demonstrated their potential applications in food packaging and other fields.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Obaid H. Hashmi, Frederic Capet, Marc Visseaux, Yohan Champouret
Summary: This study describes the synthesis of iron complexes bearing amidomethylpyridine ligands, and their application as catalysts for the Ring-Opening Polymerization of rac-lactide (rac-LA).
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Michael Lalanne-Tisne, Audrey Favrelle-Huret, Wim Thielemans, Joao P. Prates Ramalho, Philippe Zinck
Summary: Organocatalysts are important in polymerization reactions. This study used Density Functional Theory to investigate the ring-opening polymerization of trimethylene carbonate, revealing a dual mechanism and confirming TBD as a more efficient catalyst.
Review
Chemistry, Multidisciplinary
Wajid Ali, Hazrat Ali, Sami Souissi, Philippe Zinck
Summary: More than 390 million tons of fossil fuel plastics have been produced in 2022, causing major health issues and environmental pollution. Bioplastics are considered as a promising alternative due to their carbon neutrality and biodegradability, but technical and cost limitations prevent them from fully substituting fossil fuel plastics.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Guillaume Carnide, Laura Cacot, Yohan Champouret, Vincent Pozsgay, Thomas Verdier, Adele Girardeau, Marjorie Cavarroc, Andranik Sarkissian, Anne-Francoise Mingotaud, Constantin Vahlas, Myrtil Louise Kahn, Nicolas Naude, Luc Stafford, Richard Clergereaux
Summary: The Direct Liquid Reactor-Injector (DLRI) method has been used to achieve the requirements of nanocomposite thin films with non-aggregated nanoparticles uniformly dispersed in the matrix. Unlike traditional aerosol-assisted plasma deposition, the nanoparticles are synthesized into aerosols before being injected into plasma. Two different plasma reactors, a low-pressure RF plasma reactor and an atmospheric pressure parallel plate dielectric barrier discharge, were used in our experiments. The results show that DLRI can be easily coupled with various plasma processes to deposit high-quality multifunctional nanocomposite thin films with nanoparticles smaller than 10 nm in diameter, meeting the specifications for multifunctional coatings.
Article
Polymer Science
Catarina Bravo, Nicolas Merle, Mathieu Sauthier, Marc Bria, Julien De Winter, Philippe Zinck
Summary: This work presents a simple and effective method for the polymerization of butadiene using nickel allyl complexes as catalysts, achieving chain transfer and the formation of branched polybutadiene. This method allows for the one-pot synthesis of polymers with specific structures.
Proceedings Paper
Engineering, Electrical & Electronic
G. Carnide, C. Sim, Y. Champouret, E. Amin-Chaloub, M. Kahn, R. Clergereaux
2021 IEEE 16TH NANOTECHNOLOGY MATERIALS AND DEVICES CONFERENCE (NMDC 2021)
(2021)
Article
Polymer Science
Obaid H. Hashmi, Marc Visseaux, Yohan Champouret
Summary: Isoprene polymerization was successfully conducted using iminopyridine-supported iron complexes in combination with (AlBu3)-Bu-i/[B(C6F5)(4)][CPh3], with ZnEt2 acting as the chain transfer agent. Detailed studies showed that the Mn of polyisoprenes and polymerization rate decrease as the amount of CTA increases, while maintaining catalyst selectivity. These results demonstrate a reversible iron-mediated chain transfer polymerization of isoprene.
