Results 141 to 150 of about 881,452 (390)
Angewandte Chemie, EarlyView.A complexity‐generating intramolecular alkene diamination constitutes the pivotal step in the enantioselective synthesis of the title natural products featuring a strained, cage‐like pentacyclic architecture. Abstract Among more than four thousand monoterpene indole alkaloids (MIAs) isolated to date, only a few feature a 2,2,3‐trisubstituted indoline ...
Vincent Goëlo, Qian Wang, Jieping Zhu
wiley +2 more sources
Friction behavior of members of the platinum metals group with gold [PDF]
The adhesion and friction behavior of the platinum metals group was examined with clean surfaces and surfaces selectively contaminated with oxygen, vinyl chloride (C2H3Cl), and methyl mercaptan (CH3SH).
Buckley, D. H.
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Insoluble polyelectrolyte and ion-exchange hollow fiber impregnated therewith [PDF]
, 1977 The number of quaternary sites and ion exchange capacity of a polyquaternary, cross linked, insoluble copolymer of a vinyl pyridine and a dihalo organic compound is increased by about 15-35% by reaction of the polymer with an amine followed by ...
Rembaum, A.
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Advanced Science, EarlyView.This work successfully fabricated ion‐conductive hydrogels with low hysteresis and high conductivity using 3D printing technology. By adjusting the component ratios, the properties of the hydrogels can be tuned to meet diverse sensing requirements. Finally, a multimodal sensing sign language recognition system was constructed based on this hydrogel ...
Quan Hu +9 more
wiley +1 more source
Electrochemistry of 2,2'-Bipyridine Complexes of Cobalt in the Presence of Acrylonitrile [PDF]
, 1978 The previously claimed (1) catalysis of the electroreduction of acrylonitrile by means of a complex of Co(I) and 2,2′‐bipyridine is shown to be erroneous. The “catalytic currents” result instead from the two‐electron reduction of a mixed complex of Co(I)
Anson, Fred C. +2 more
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Beyond Traditional RAFT Polymerization: Emerging Strategies and Future Perspectives; A Third Update
Advanced Science, EarlyView.This review explores recent advances in the past five years for non‐traditional RAFT polymerization, focusing on new activation strategies, sustainable depolymerization, and integration with automated and AI‐driven synthesis. Together, these innovations advance polymer chemistry and reveal how the pieces of the non‐traditional RAFT puzzle are steadily ...
Vianna F. Jafari +10 more
wiley +1 more source
Advanced Science, EarlyView.Inspired by the extracellular matrix, eutectogels are prepared by in situ deconstruction of silk fibroin into micro/nanofibrils and EGaIn‐induced polymerization. The multiscale fibril network with dynamic crosslinking achieves high strength (1.25 MPa), toughness (23.09 MJ m−3), and conductivity (1.51 S m−1), outperforming previous natural polymer ...
Haiwei Yang +4 more
wiley +1 more source
Environmental and thermal oxidation of poly(vinyl chloride) and impact‐modified poly(vinyl chloride). I [PDF]
, 1980 E. G. Kolawole +2 more
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Advanced Science, EarlyView.Difluoromethyl (CF2H) group, the bioisostere of hydroxyl thiol methyl or amide is privileged in medicinal chemistry due to hydrogen‐binding ability and lipophilic, metabolically stable, and chemical inert nature. However, enatioseleceive CF2H introduction remains challenging.
Peng Liu +9 more
wiley +1 more source
How does Cross-Linking Effect the Thermal Stability of Polyisoprene [PDF]
, 2000 Polyisoprene can be cross-linked by an initial lithiation followed by reaction with both monochloro compounds and dichloro compounds. The monochloro compounds effect crosslinking through a lithium-chlorine exchange route while the use of dichloro ...
Wilkie, Charles A., Yao, Qiang
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