Results 91 to 100 of about 72,832 (304)

Neutral and Cationic Rare Earth Metal Alkyl and Benzyl Compounds with the 1,4,6-Trimethyl-6-pyrrolidin-1-yl-1,4-diazepane Ligand and Their Performance in the Catalytic Hydroamination/Cyclization of Aminoalkenes [PDF]

, 2008
A new neutral tridentate 1,4,6-trimethyl-6-pyrrolidin-1-yl-1,4-diazepane (L) was prepared. Reacting L with trialkyls M(CH2SiMe3)3(THF)2 (M = Sc, Y) and tribenzyls M(CH2Ph)3(THF)3 (M = Sc, La) yielded trialkyl complexes (L)M(CH2SiMe3)3 (M = Sc, 1; M = Y ...
Arndt S., Arndt S., Bambirra S., Bambirra S., Bambirra S., Bambirra S., Bambirra S., Bambirra S., Bambirra S., Bambirra S., Booij M., Carver C. T., De Kimpe N., Douglass M. R., Douglass M. R., Evans W. J., Gagné M. R., Gagné M. R., Gao W., Ge S, Ge S., Ge S., Ge S., Giardello M. A., Gribkov D. V., Hajela S., Hayes P. G., Hong S, Horino Y., Howe R. G., Kawaoka A. M., Kim J. Y., Komeyama K., Lappert M. F., Lauterwasser F., Lawrence S. C., Li W., Liu Y., Lukesova L., Lukesova L., Meyer N., Meyer N., Molander G. A., Molander G. A., Nishiura M., Robert D., Ryu J. -S, Sakakura Y., Shannon R. D., Stubbert B. D., Tardif O., Tazelaar C. G. J., Tokuda M., Tredget C. S., Trifonov A. A, Wang Q., Ward B. D., Yu P. F., Yuen H. F., Zeimentz P. M., Zhang L.   +60 more
core   +3 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Poly(2-cyclopropyl-2-oxazoline): from rate acceleration by Cyclopropyl to Thermoresponsive properties [PDF]

, 2011
The synthesis and microwave-assisted living cationic ring-opening polymerization of 2-cyclopropyl-2-oxazoline is reported revealing the fastest polymerization for an aliphatic substituted 2-oxazoline to date, which is ascribed to the electron withdrawing
Baumgartel, Anja, Bloksma, Meta M, Hoogenboom, Richard, Kuse, Anette, Perevyazko, Igor Y, Schubert, Ulrich S, Vollrath, Antje, Weber, Christine   +7 more
core   +2 more sources

Living cationic polymerization [PDF]

, 1997
The kinetics of the polymerization of styrene iniated by 1-chloro-1-phenyltehane/tin (IV) chloride in the presence of tetrabutylammonium chloride have been studied. Dilatometry studies at 25 C were conducted and the orders of reaction were established.
openaire   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Synthesis, characterization and photopolymerization of vinyl functionalized poly (ε-caprolactone)

eXPRESS Polymer Letters, 2009
Vinyl functionalized poly (ε-caprolactone) with molar mass ranging from 500–5000 Da were synthesized by ring opening polymerization and further photopolymerized.
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Synthesis of polystyrene suspensions with positive ζ-potential of particles in the presence of surfactants of various nature

Тонкие химические технологии, 2012
Colloid-chemical properties of cationic surfactants, as well as kinetic laws of polymerization of styrene in their presence were studied. Conditions of styrene polymerization providing stable polymeric suspensions with a high positive ζ-potential of ...
A. M. Shestakov, S. M. Levachev, I. A. Gritskova, A. I. Kadantseva   +3 more
doaj  

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

Advanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler, Hesam Makki, Dorothee Silbernagl, Mathias Dimde, Kai Ludwig, Bengt E. Tegner, Christopher Greve, Konstantin Rausch, Eva M. Herzig, Anna Köhler, Alex J. Plajer   +10 more
wiley   +1 more source