Results 41 to 50 of about 69,497 (186)

Hydrolyzable Bio‐Based Bisphenols Enabled by the Tishchenko Reaction for Polyurethane Vitrimers with Closed‐Loop Recyclability

Advanced Science, EarlyView.
This study employs the Tishchenko coupling reaction to obtain bio‐based bisphenols containing degradable ester bonds with 100% atom utilization. Based on these bio‐based bisphenols, a fully bio‐based polyurethane Covalent Adaptable Networks are constructed, while simultaneously endowing the material with closed‐loop recyclability, degradability, and ...
Jiewen Wang, Hongru Qiang, Rong Huang, Dan Zhao, Zihan Tong, Zhen Fan, Jianzhong Du, Yunqing Zhu   +7 more
wiley   +1 more source

Access to N‐Monofluoromethylated (Thio)Carbamates, Formamides, Alkynamides, and Related Derivatives

Angewandte Chemie, EarlyView.
The first general synthetic access to N‐CH₂F and N‐CHRF carbamates, thiocarbamates, formamides, alkynamides, and related compounds is disclosed. The method involves the direct synthesis of carbamoyl fluoride building blocks from readily available amines, followed by their derivatization. Abstract This work presents the first general synthetic access to
Filip G. Zivkovic, Fritz Bahns, Che‐Ming Hsu, Franziska Schoenebeck   +3 more
wiley   +2 more sources

Self-immolative linkers in polymeric delivery systems [PDF]

, 2011
There has been significant interest in the methodologies of controlled release for a diverse range of applications spanning drug delivery, biological and chemical sensors, and diagnostics.
Blencowe, Christopher A, Greco, Francesca, Hayes, Wayne, Russell, Andrew T, Thornthwaite, David W   +4 more
core   +1 more source

Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications

Advanced Science, EarlyView.
⁻Inspired by the “brick wall” structure of pearl layer, FLICE‐110% liquid‐free ionic conductive elastomer had high mechanical strength (5.46 MPa), excellent ionic conductivity (3.29 × 10−4 S cm−1) and resilience. It can be used in smart music boxes, airplane wings and control manipulators.
Zequan Li, Jingjing Tang, Xuwei Wang, Fuqi Wang, Fangyan Ou, Wenyu Pan, Changsheng Wang, Ting Xie, Chuang Ning, Xiwei Xu, Jiamin Liu, Qihua Liang, Wei Gao, Shuangliang Zhao   +13 more
wiley   +1 more source

Indoor residual spraying of insecticide and malaria morbidity in a high transmission intensity area of Uganda. [PDF]

, 2012
BackgroundRecently the use of indoor residual spraying of insecticide (IRS) has greatly increased in Africa; however, limited data exist on the quantitative impacts of IRS on health outcomes in highly malaria endemic areas.Methodology/principal ...
Baxi, Sanjiv M, Dissanayake, Gunawardena, Dorsey, Grant, Filler, Scott, Gasasira, Anne, Kakeeto, Stella, Kamya, Moses R, Kigozi, Ruth, Nasr, Sussann, Rubahika, Denis, Sserwanga, Asadu   +10 more
core   +2 more sources

Dynamic Bonds Reinforced Polyamide Elastomer for Biomedical Orthosis

Advanced Science, EarlyView.
A dynamic bonds (DBs) reinforced shape memory polyamide elastomer is developed using reactive extrusion. Dynamic covalent networks enhance interlayer adhesion in 4D‐printed objects by utilizing the combined effects of multiple DBs, reducing mechanical anisotropy and improving the mechanical and shape memory properties.
Zhen Li, Peiyao Yan, Hao Wang, Yuancheng Zhang, Junhua Kong, Wei Zhao, Xin Li, Xiaomeng Zhang, Zhe Cui, Peng Fu, Xinchang Pang, Minying Liu, Chaobin He   +12 more
wiley   +1 more source

Energy Harvesting from CO2 Emission Exploiting Ionic Liquid‐Based Electrochemical Capacitor

Advanced Energy and Sustainability Research, EarlyView.
The concept proposes energy harvesting from CO2 emissions using ionic liquids (IL)‐based supercapacitor. By alternating CO2 and N2 gasses during electrode charging/discharging, the energy from salinity gradients is captured. ILs absorb CO2, altering electrode/IL interactions and generating electrical energy. This method introduces for the first time an
Davide Molino, Federico Raffone, Pietro Zaccagnini, Alessandro Pedico, Simone Martellone, Giuseppe Ferraro, Sergio Bocchini, Giancarlo Cicero, Andrea Lamberti   +8 more
wiley   +1 more source

Asymmetric Aziridination of Allylic Carbamates Using Ion‐Paired Rhodium Complexes and Extrapolation to C─H Amination of Phenethyl Carbamates

Angewandte Chemie, EarlyView.
Aziridination of alkenes is an important route to chiral nitrogen‐containing building blocks. We report that carbamate‐functionalized allylic alcohols undergo highly enantioselective aziridination using achiral dimeric Rh complexes ion‐paired with cinchona alkaloid‐derived chiral cations.
Arthur R. Lit, Shotaro Takano, Christian Zachau, Ioana Băltărețu, Robert J. Phipps   +4 more
wiley   +2 more sources

Cooperative Carbon Dioxide Adsorption in Alcoholamine- and Alkoxyalkylamine-Functionalized Metal-Organic Frameworks. [PDF]

, 2019
A series of structurally diverse alcoholamine- and alkoxyalkylamine-functionalized variants of the metal-organic framework Mg2 (dobpdc) are shown to adsorb CO2 selectively via cooperative chain-forming mechanisms.
Forse, AC, Kim, EJ, Lee, J-H, Long, JR, Mao, VY, McGuirk, CM, Milner, PJ, Neaton, JB, Porter-Zasada, LB, Reimer, JA, Siegelman, RL   +10 more
core  

Method for monitoring urea and ammonia in wine and must by flow injection-pervaporation [PDF]

, 2002
An easy to automate flow-injection-pervaporation method for monitoring urea and ammonia in must and wine was developed. The method is based on separation of the ammonia from the sample matrix by pervaporation followed by its reaction with salicylate ...
Almy, Bucsis, Cañizares, Fujinawa, Inai, Izquierdo, J González-Rodrı́guez, Kodama, Kodama, Lima, M.D Luque de Castro, Mattos, Monteiro, P Pérez-Juan, Papaefstatiou, Schwedt   +15 more
core   +1 more source