Results 111 to 120 of about 114,347 (402)

Reinforced structural plastics [PDF]

open access: yes, 1972
Reinforced polyimide structures are described. Reinforcing materials are impregnated with a suspension of polyimide prepolymer and bonded together by heat and pressure to form a cured, hard-reinforced, polyimide ...
Burns, E. A.   +4 more
core   +1 more source

Exploring PANI/CBTS Nanofiber Composites as Supercapacitor Electrodes: Structure–Performance Correlation

open access: yesAdvanced Sustainable Systems, EarlyView.
This study explores the synergistic integration of polyaniline (PANI) nanofibers with a CBTS‐based composite for supercapacitor applications. Structural and chemical analyses confirm strong interactions between the components, enhancing electrical conductivity and stability.
Süleyman Gökhan Çolak   +5 more
wiley   +1 more source

Cupin‐Type Dimethylsulfoniopropionate Lyase from Pelagibacter ubique (DddKPu) Catalyzes Aza‐Michael Addition of Primary and Secondary Amines to Acrylic Acid

open access: yesAngewandte Chemie, EarlyView.
A dimethylsulfoniopropionate lyase (DddK) was identified as an efficient aza‐Michaelase for the addition of amines to acrylate. Screening 74 amines with wild‐type DddK and its W26G variant yielded N‐substituted and N,N‐disubstituted β‐amino acids in 30%–93% isolated yield.
Diletta Arceri   +5 more
wiley   +2 more sources

Bis[4-(2-hydroxyethylamino)phenyl] sulfone

open access: yesActa Crystallographica Section E, 2008
The title compound, C16H20N2O4S, exhibits a V-shape structure with a dihedral angle of 77.5 (11)° formed by the two benzenel rings. The molecular packing is stabilized by intramolecular and intermolecular hydrogen bonds as well as π–
Guo-Feng Chen   +3 more
doaj   +1 more source

An experimental feasibility study for the preparation of thermo-oxidatively stable Pyrrone laminates [PDF]

open access: yes
Synthesis of Pyrrone laminates from sulfone ...
Burns, E. A.   +4 more
core   +1 more source

Fabrication of Superinsulating Poly(Urethane‐Isocyanurate) Aerogels Derived from Upcycled Polycarbonate

open access: yesAdvanced Sustainable Systems, EarlyView.
Bisphenol‐A polycarbonate is upcycled via a simple one‐pot reaction into an aromatic Mannich polyol, which serves as a precursor for fabricating poly(urethane‐isocyanurate) (PUR‐PIR) aerogels. PUR‐PIR aerogels, prepared with different isocyanate indices, exhibit high porosities, high specific surface areas, ultralow thermal conductivity, and excellent ...
Ivona Glišić   +5 more
wiley   +1 more source

Control of Tetrazine Bioorthogonal Reactivity by Rotaxanation

open access: yesAngewandte Chemie, EarlyView.
Control of tetrazine‐mediated inverse electron demand Diels–Alder (IEDDA) reaction has been achieved by rotaxanation. Tetrazine rotaxanes were synthesized in high yield and they displayed a much slower kinetics compared to the corresponding thread. Mechanical bond disassembly upon the right stimulus activates reactivity.
Carlos Fumero‐Medina   +10 more
wiley   +2 more sources

Use of a distant reporter group as evidence for a conformational change in a sensory receptor [PDF]

open access: yes, 1977
A highly sensitive method for demonstrating ligand-induced conformational changes in protein molecules in solution is described. The method utilizes an environmentally sensitive reporter group that is known to be distant from the active site.
Hartig, P. R.   +2 more
core  

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