Results 71 to 80 of about 3,342 (219)

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

Extruder‐based 3D printing of eco‐friendly polymers

Polymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang, Rene Sattler, Paul‐Maximilian Runge, Katalee Jariyavidyanont, Mengxue Du, Holm Altenbach, Mario Beiner, René Androsch   +7 more
wiley   +1 more source

Novel nitro‐quinoline photoinitiators for composites: exploring the effects of hydroxyl and methacrylate substituents on the photopolymerization of dimethacrylate matrices

Polymer International, EarlyView.
New quinoline derivatives proved to be efficient photoinitiators for dental resin monomers under two different light‐curing units, yielding favorable conversion, color and fluorescence results in the presence of different co‐initiators, including an eco‐friendly alternative.
Vitor Fernandes Moreno, Luiz Carlos da Silva‐Filho, Adilson Yoshio Furuse   +2 more
wiley   +1 more source

In Situ Curing‐Enabled 3D Printing of Continuous Fiber‐Reinforced Thermosetting Composites

Journal of Polymer Science, EarlyView.
In situ curing‐enabled the 3D printing of continuous fiber/thermoset composites, which were reviewed. Particularly, four types of in situ curing, were discussed, including Radiation‐induced curing, photothermal curing, electrothermal curing, and frontal polymerization. AI‐integrated printing was also analyzed.
Xiaofei Wu, Harrison Hayworth, Shiren Wang   +2 more
wiley   +1 more source

Connectivity‐Dependent Mechanics of Main‐Chain Oligomers in Side‐Chain Liquid‐Crystalline Polyacrylate Networks

Journal of Polymer Science, EarlyView.
Main‐chain liquid‐crystalline oligomers are incorporated into side‐chain polyacrylate elastomers either as covalently connected strands or as non‐network‐bound, physically confined chains. Both architectures contribute to short‐time soft elasticity, but only the capped oligomer shows an additional long‐time terminal relaxation.
Subi Choi, Zhijun Yang, Eugene M. Terentjev   +2 more
wiley   +1 more source

Polymersome‐Enabled Multimodal Delivery of Tobramycin and Doripenem for Targeted Eradication of Pseudomonas aeruginosa Biofilms in Chronic Rhinosinusitis

Small, EarlyView.
Schematic representation of diffusion‐based versus pH‐triggered drug release within a bacterial biofilm. In diffusion‐based systems, drug cargo is gradually released independent of local pH, resulting in rapid burst release and reduced sustained concentrations.
Amalie Kjær Andresen, Matteo Tollemeto, Alexander B. Cook, Claus Sternberg, Yudong Li, Claus Moser, Lars Jelsbak, Jan C. M. Van Hest, Anja Boisen, Line Hagner Nielsen   +9 more
wiley   +1 more source

Photo‐Switched Catalytic Amyloids

Small, EarlyView.
Photo‐switched reversible hierarchical assembly of catalytic amyloid fibrils is accomplished by mixing an amphiphilic cross‐ß peptide with a merocyanine photo switch. The peptide monomers, comprising phenylalanine‐lysine repeats, do not self‐assemble in water because of the electrostatic repulsion.
Shubhra Kanti Bhaumik, Sisira Mambram Kunnath, Elad Arad, Einat Nativ‐Roth, Arunavo Chatterjee, Albert Batushansky, Nitzan Shauloff, Hanna Rapaport, Raz Jelinek   +8 more
wiley   +1 more source

Improving strength and toughness of vitrified bond by adding nano-rare earth oxides

Jin'gangshi yu moliao moju gongcheng, 2018
To improve the strength and toughness of vitrified bond in CBN grinding wheel, composite bonds are prepared by adding different fractions of nano-sized CeO2, Sm2O3, Y2O3, La2O3 or Er2O3 as additives.
TAN Qiuhong, ZHAO Yucheng, WANG Mingzhi, ZOU Qin   +3 more
doaj  

Dressing Mechanism and Evaluations of Grinding Performance with Porous cBN Grinding Wheels

Chinese Journal of Mechanical Engineering
Cubic boron nitride (cBN) grinding wheels play a pivotal role in precision machining, serving as indispensable tools for achieving exceptional surface quality. Ensuring the sharpness of cBN grains and optimizing the grinding wheel's chip storage capacity
Jiahao Song, Yu Yao, Shandong Feng, Biao Zhao, Wenfeng Ding, Guodong Xiao, Qi Liu, Dongdong Xu, Yanjun Zhao, Jianhui Zhu   +9 more
doaj   +1 more source

Conversion and Tack-Curing of Light-Cured Veneer Luting Agents

Journal of Functional Biomaterials
Light attenuation and excess handling of light-cured luting agents create problems in bonding veneer restorations. The aim of the present study was to assess the curing capacity of light-cured veneer luting agents (VLA) [Choice 2 (CH2), G-Cem Veneer (GCV)
Aikaterini Petropoulou, Maria Dimitriadi, Spiros Zinelis, Ioannis Papathanasiou, George Eliades   +4 more
doaj   +1 more source