Results 41 to 50 of about 48,033 (274)

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

Advanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Nucleophilic Substitution on 4-Methylbenzyl Thiocyanate with Nucleophiles [PDF]

Bulletin of the Chemical Society of Japan, 1983
Abstract The reactions of 4-methylbenzyl thiocyanate (1) with several nucleophiles have been investigated. Compound 1 possesses three electrophilic sites, i.e., benzylic carbon, sulfur and cyano carbon, to receive nucleophilic attack. PhS− and CN− which have HOMO’s of high energy levels appear to attack preferentially the sulfur atom ...
Shigeru Oae, Norihiro Yamada, Ken Fujimori, Osamu Kikuchi   +3 more
openaire   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

Advanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss, Shiyi Wang, Brian P. Setzler, Yushan Yan, Adam Z. Weber   +4 more
wiley   +1 more source

Chemical Reactivity of Chlorambucil in Organic Solvents: Influence of 4-Chloro Butyronitrile Nucleophile to Voltammogram Profiles

International Journal of Electrochemical Science, 2011
Chlorambucil is one of anticancer drug that has been mainly used in the treatment of cancer disease. It is an alkylating agent and can be given orally.
Henry Setiyanto, Vienna Saraswaty, Rukman Hertadi, Indra Noviandri, Buchari Buchari   +4 more
doaj   +1 more source

Coordination of the catalytic nucleophile-histidine pair and the catalytic histidine-acid pair in the carboxylesterase SshEstI (PDB ID:3WJ1).

, 2020
The catalytic nucleophile (“Nucleophile”, Ser151 in SshEstI) is hydrogen bonded (OG/Ser151 –NE2/His274) to the catalytic histidine (“Base”, His274 in SshEstI) as part of the standard interaction network of the residues of the catalytic machinery. However,
Polytimi S. Dimitriou (8479038), Konstantin Denessiouk (201123), Alexander Denesyuk (201118), Mark S. Johnson (166934), Toru Nakayama (401351)   +4 more
core   +1 more source

Phototriggered Butenolide Formation from a Cyclobutenedione and an Acidic Nucleophile

, 2023
A phototriggered conjugation reaction of an aminocyclobutenedione and an acidic nucleophile was discovered. Upon blue light irradiation of the materials, a butenolide derivative with substituents derived from the aminocyclobutenedione and the nucleophile
Aiko Sesumi (17708504), Kenji Mishiro (1910746), Munetaka Kunishima (1490335), Takanori Fujii (17708507), Taniyuki Furuyama (1493791)   +4 more
core   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Enhancing Reaction Kinetics and Structural Control in N‐Carboxyanhydride (NCA) Polypeptide Synthesis by Structurally Tuned Azamacrocyclic Ligands

Angewandte Chemie, EarlyView.
Azamacrocycles provide a tunable platform for rapid N‐carboxyanhydride (NCA) Ring‐Opening Polymerization (ROP). Changing the methylation pattern switches the macrocycle from an external catalyst (N14Me3) to a covalent initiator‐catalyst (IniCat, N14Me1), delivering controlled polypeptide growth under open‐vessel conditions.
Paulina Maksym, Adam Gorczynski, Robert D. Murphy, Gianluca Bartolini Torres, Roksana Wygoda, Karol Garbaczewski, Giuseppe Forte, Giuseppe Consiglio, Yixuan Chen, Sébastien Perrier, Andreas Heise   +10 more
wiley   +2 more sources

Zur Kenntnis der Azulene, XI. Nucleophile Substitution halogenierter Azulene [PDF]

, 2023
Es werden Darstellung und Eigenschaften einiger in 1- bzw. 6-Stellung halogenierter Azulene und deren Reaktionen mit nucleophilen Agenzien beschrieben. Durch die Polarisation des Azulens bedingt, erfolgen nucleophile Austauschreaktionen im 7-Ring leicht,
Hafner, Klaus, Kaiser, Hans, Patzelt, Heinz   +2 more
core   +1 more source

Charting the Future of Stereoselective Carbohydrate Synthesis: The Essential Role of Cross‐Disciplinary Innovation

Advanced Science, EarlyView.
Cross‐disciplinary endeavors are blossoming across the broad chemical sciences. This perspective provides a glimpse into the rewarding interdisciplinary journey taken by the Charles Loh research group in pioneering the σ‐hole based catalytic glycosylation strategy.
Charles C. J. Loh
wiley   +1 more source