Results 61 to 70 of about 20,442 (252)

The Latest Advances in Mechanically Robust Self‐Healing Polyurea Based on Dynamic Chemistry

Advanced Science, EarlyView.
Solving the contradiction between strength, toughness, and self‐healing properties is extremely important to realize the breakthrough of polyurea applications. This review summarizes and discusses common strategies for the preparation of high‐performance and self‐healing polyurea materials based on dynamic chemistry, providing molecular‐level insights ...
Yujia Hao, Guangming Zhu
wiley   +1 more source

Identification of Isocyanate Number on IPDI and TDI Due to Storage Period and Their Impact on Composite Solid Propellant

Reaktor
Isocyanate compounds serve as a curing agent in the production of composite propellants, playing a crucial role in determining their characteristics. Due to its high reactivity with moisture, it is essential to determine the isocyanate number of stored ...
Anita Pinalia, Ratnawati Ratnawati
doaj   +1 more source

Developing an Efficient and General Strategy for Immobilization of Small Molecules onto Microarrays Using Isocyanate Chemistry

Sensors, 2016
Small-molecule microarray (SMM) is an effective platform for identifying lead compounds from large collections of small molecules in drug discovery, and efficient immobilization of molecular compounds is a pre-requisite for the success of such a platform.
Chenggang Zhu, Xiangdong Zhu, James P. Landry, Zhaomeng Cui, Quanfu Li, Yongjun Dang, Lan Mi, Fengyun Zheng, Yiyan Fei   +8 more
doaj   +1 more source

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

Investigation of the Impact of Hydrolytically Cleavable Groups on the Stability of Poly(ethylene glycol) Based Hydrogels Cross‐Linked via the Inverse Electron Demand Diels–Alder (iEDDA) Reaction

Macromolecular Bioscience, Volume 22, Issue 12, December 2022., 2022
To accelerate biodegradation of stable poly(ethylene glycol)‐based hydrogels cross‐linked via the rapid inverse electron demand Diels–Alder reaction between norbornene and tetrazine groups, 3,6‐epoxy‐1,2,3,6‐tetrahydrophthalimide, phenyl carbamate, carbonate ester, and phenyl carbonate ester are synthesized into the hydrogel backbone.
Christian E. Ziegler, Moritz Graf, Makoto Nagaoka, Achim M. Goepferich   +3 more
wiley   +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

Hydrosilylation of Alkynes Under Continuous Flow Using Polyurethane‐Based Monolithic Supports with Tailored Mesoporosity

Macromolecular Chemistry and Physics, Volume 224, Issue 1, January 2023., 2023
The synthesis of non‐porous polyurethane‐based monoliths and the tailoring of mesoporosity via a solvent‐induced phase separation process resulting in the first mesoporous polyurethane‐based monoliths with tailored mesopores in the 2–10 nm range is reported.
Hande Acikalin, Pradeep K. R. Panyam, Abdul Wasif Shaikh, Dongren Wang, Shravan R. Kousik, Petia Atanasova, Michael R. Buchmeiser   +6 more
wiley   +1 more source

Durable Metal‐Organic Frameworks by Covalent Hybridization with Polyurethane and Polyallophanate

Asian Journal of Organic Chemistry, EarlyView.
The organic ligands in MOFs were polymerized with diisocyanate, forming polyallophanate and polyurethane networks inside single crystals of MOFs. The hybridization of brittle MOF structure and flexible polyurethane and polyallophanate resulted in highly tough MOF crystals.
Shizuka Anan, Kazuki Sada, Kenta Kokado
wiley   +1 more source

Full-dimensional theory of pair-correlated HNCO photofragmentation [PDF]

arXiv, 2017
Full-dimensional semiclassical dynamical calculations are reported for the photofragmentation of isocyanic acid in the S1 state. These calculations, performed for the first time, allow to closely reproduce the key features of high-resolution imaging measurements at photolysis wavelengths of 201 and 210 nm while providing insight into the underlying ...
arxiv  

Architected Microalgae‐Based Matter via 3D Printing: Properties, Printing Techniques, and Applications

Advanced NanoBiomed Research, EarlyView.
Microalgae are emerging as sustainable and economical bioresources that can be utilized as bioinks for creating constructs with intriguing functionalities. This review discusses the properties and applications of microalgae, providing a comprehensive review of recent advancements and challenges in 3D‐printed microalgae‐based constructs for various ...
Yiwei Zou, Jiuhong Yi, Yunlu Dai, Iek Man Lei   +3 more
wiley   +1 more source