Results 111 to 120 of about 126,507 (309)

A comparison of non-isocyanate and HDI-based poly(ether urethane): Structure and properties

Polymer, 2019
DMC-derived poly (ether urethanes) were prepared via isocyanate-free route. The transurethanization reaction of the non-isocyanate route needs higher temperature as compared with the traditional route.
Ziyun Shen, Liu-Chun Zheng, Chun-Cheng Li, Guo-Ming Liu, Yaonan Xiao, Shao-Hua Wu, Jiajian Liu, Bo Zhang   +7 more
semanticscholar   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Nonthermal Plasma–Enabled Cascade N2 Activation and Electroreduction

EcoEnergy, EarlyView.
Integrating plasma‐assisted NOx synthesis with subsequent electrochemical reduction enables the sustainable synthesis of high‐value N‐containing chemicals under ambient conditions. ABSTRACT The development of sustainable nitrogen fixation technologies operating under ambient conditions is critical for reducing the energy intensity and carbon footprint ...
Shijia Li, Wei Gao, Ziyun Wang
wiley   +1 more source

Isocyanate toughening of pCBT/organoclay nanocomposites with exfoliated structure and enhanced mechanical properties

eXPRESS Polymer Letters, 2014
Cyclic butylene terephthalate (CBT®) is an interesting matrix material for the preparation of nanocomposites due to its very low, water-like melt viscosity which favours clay exfoliation. Nevertheless, polymerized CBT (pCBT) is inherently brittle.
T. Abt, J. J. Bou, M. Sanchez-Soto
doaj   +1 more source

A kinetic study of the reaction of phenyl isocyanate with water

, 1970
The pseudo-first-order reaction kinetics of the reaction of phenyl isocyanate with water in 80 percent acetone and 20 percent water were studied using carbon dioxide evolution as a function of time as the reaction rate measurement.
Robling, Stephen C., 1942-
core  

A Biosourced and Self‐Healable Polymer Electrolyte for Potassium Batteries

EcoEnergy, EarlyView.
A biosourced lignin‐filled gel polymer electrolyte combines suppressed crystallinity, high ionic conductivity, and UPy‐driven self‐healing for potassium batteries. The optimized formulation sustains long‐term cycling with 97.5% capacity retention after 1000 cycles and preserves electrochemical operation after intentional membrane damage.
Sabrina Trano, Giuseppe Pascuzzi, Elisavet Tatsi, Sara Garcia‐Ballesteros, Stefano Turri, Gianmarco Griffini, Federico Bella   +6 more
wiley   +1 more source

Theoretical Framework for Predicting Dynamic Covalent Exchange Based on Proton Affinities and Proton-Transfer Assistance. [PDF]

Chemistry
Proton‑transfer catalysis controls acylsemicarbazide dissociation, linking proton affinity to exchange kinetics and enabling predictive design of robust, tunable dynamic covalent networks. ABSTRACT We provide design principles for predicting bond exchange kinetics in acylsemicarbazide (ASC)‐based systems that can be applied to tuning the properties of ...
Lekanne Deprez S, Maessen SJD, van Dam AN, Nieuwland C, Vermeeren P, Palmans ARA, Fonseca Guerra C.   +6 more
europepmc   +2 more sources

Flexible Phase Change Bandage Incorporated With Zeolite for Temperature‐Controlled Wound Hemostasis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel flexible hemostatic phase change bandage (HPB) was designed and constructed through chemical cross‐linking and electrospinning to mitigate thermal injury and broaden the application of PCMs in the medical field. Furthermore, the flexible HPB shows thermal stability, strong mechanical strength, excellent infiltration, and reliable thermal ...
Xinyu Zhang, Keyan Sun, Hanqing Liu, Shihui Zhang, Yan Kou, Haocheng Fu, Zicheng Lu, Yongfei Zhao, Quan Shi   +8 more
wiley   +1 more source

Synergistic Modulation of Conductivity and Oxidation Stability in SiHfBCN Ceramics via UV‐Assisted Structural Evolution

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A quinary UV‐curable SiHfBCN ceramic photoresist with high ceramic yield enhanced is developed through sequential molecular design for high‐temperature sensing coatings. The elevated interconnected conductive network induced by chemically bonded carboxylated MWCNTs enables the pyrolyzed ceramics' enhanced conductivity and excellent oxidation stability.
Xiyue Zhu, Mingshuo Zhang, Jun Chen, Chen Hu, Jinshuo Zhang, Xin Liu, Xichao Dong, Laifei Cheng, Xingang Luan   +8 more
wiley   +1 more source

Thermoresponsive Gel Polymer Electrolytes Enabled by Retained Double Bonds for Thermal Shutdown in Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A smart gel electrolyte with thermal shutdown capability has been proposed enabled by a two‐step cross‐linking strategy, which preserves a high density of unreacted double bonds at room temperature. This strategy brings negligible degradation to room temperature electrochemical performance, while under thermal abuse conditions above 115 °C, the gel ...
Yihan Wu, Ruifeng Song, Junzhong Li, Tianyi Hou, Shaofei Wang, Yunhui Huang, Henghui Xu   +6 more
wiley   +1 more source