Results 81 to 90 of about 8,661 (273)

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

Advanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells, Ivan Kuzmenko, Reza A. Ghiladi, Richard J. Spontak   +3 more
wiley   +1 more source

Synergy between dynamic crosslinking and sacrificial bonding in bio-elastomers towards highly ductile and mechanically robust poly (lactic acid) (PLA)

Industrial Crops and Products
The inherent brittleness of poly(lactic acid) (PLA) is widely argued to be the major obstacle that hinders its practice as a reliable bio-based substitute of petroleum-based polymers, hence toughening with rubbery materials has become a common solution ...
Jixi Chen, Shuyuan Xue, Ruanquan Zhang, Botuo Zheng, Hang Shen, Huagui Zhang   +5 more
doaj   +1 more source

Bioinspired Tough Materials with Microstructured Sacrificial Bonds Based on Instability-Assisted 3D Printing [PDF]

, 2020
RÉSUMÉ: Une ténacité élevée est requise pour les matériaux structuraux dans de nombreux systèmes d'ingénierie critiques pour la sécurité, tels que le pare-brise d'avion et le confinement des soufflantes de moteurs à réaction.
Zou, Shibo
core  

Visible Light Promoted Metal Free Sustainable Reduction of Activated Carbon-Carbon Double Bonds Without Any External Reductant

, 2021
Visible light promoted chemo-selective metal free hydrogenation of activated double bond has been achieved via photoredox catalysis. Eosin Y has proved to an efficient catalyst for the effective reduction of C-C double bonds of isatins, oxindoles and ...
Anindita , Bhowmick, Prakash K., Warghude, Dr. Ramakrishna G., Bhat   +2 more
core   +1 more source

Multimodal Perception and Machine Learning‐Empowered Human Machine Interfaces With Double‐Network Hydrogel Fibers

Advanced Functional Materials, EarlyView.
This work develops polyacrylamide‐alginate (PAM‐Alg) double‐network hydrogel fibers for multimodal perception and intelligent human‐machine interfaces. The covalent‐ionic network provides high strength, toughness, and stable conductivity. Easily woven into wearables and integrated with soft robots, the fibers enable object and temperature recognitions ...
Yujue Yang, Minyu Qiu, Di Tan, Xinlong Liu, Junze Zhang, Ziyu He, Jing Han, Yuanyuan Gao, Zihua Li, Hong Fu, Bingang Xu   +10 more
wiley   +1 more source

Deoxyguanosine Phosphate Mediated Sacrificial Bonds Promote Synergistic Mechanical Properties in Nacre-Mimetic Nanocomposites [PDF]

, 2013
We show that functionalizing polymer-coated colloidal nanoplatelets with guanosine groups allows synergistic increase of mechanical properties in nacre-mimetic lamellar self-assemblies.
Ikkala, Olli, Seitsonen, Jani, Walther, Andreas, Berglund, Lars,, Martikainen, Lahja, Berglund, Lars   +5 more
core   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

Dynamic Reconfiguration and Local Polarization of NiFe‐Layered Double Hydroxide‐Bi2MoO6−x Heterojunction for Enhancing Piezo‐Photocatalytic Nitrogen Oxidation to Nitric Acid

Advanced Science
Constructing heterojunctions with vacancies has garnered substantial attention in the field of piezo‐photocatalysis. However, the presence of interfacial vacancies can serve as charge‐trapping sites, leading to the localization of electrons and hindering
Xiaoxu Deng, Peng Chen, Ruirui Cui, Xingyong Gong, Yubo Wu, Xu Wang, Chaoyong Deng   +6 more
doaj   +1 more source

Sacrificial bonds and hidden length dissipate energy as mineralized fibrils separate during bone fracture

Properties of the organic matrix of bone(1) as well as its function in the microstructure(2) could be the key to the remarkable mechanical properties of bone(3).
Pechenik, L., Fantner, G. E., Hansma, P. K., Stucky, G. D., Hassenkam, T., Weaver, J. C., Morse, D. E., Kindt, J. H., Birkedal, H., Cutroni, J. A., Cidade, G. A. G.   +10 more
core   +1 more source

Sacrificial Ionic Bonds Need To Be Randomly Distributed To Provide Shear Deformability

, 2015
Multivalent ions are known to allow for reversible cross-linking in soft biological materials, providing stiffness and extensibility via sacrificial bonds.
Markus A. Hartmann (1267374), Peter Fratzl (126726)   +1 more
core   +1 more source