Results 171 to 180 of about 3,889,198 (331)

Method of manufacturing epoxy compound.

Method of manufacturing epoxy compound.
Disclosed is prepn. method of an epoxy compd., characterized by reaction of an olefin with hydrogen peroxide in the presence of a tungsten compd. and a nitrogen-contg. compd. (wherein, pKa of conjugate acid of the nitrogen-contg. comound is 1.5-11.5). For example, to a soln. of tetrahydroindene (THI; 1 mmol) in acetonitrile (5 mL) were added imidazole (
openaire  

Self‐Soldering, Stretchable and Self‐Healing Liquid Metal Elastomer Interconnections for Soft Electronics Platforms

Advanced Materials Technologies, EarlyView.
A self‐healing and electrically conductive liquid metal elastomer enables robust self‐soldering of surface mount devices for soft electronics. Photothermally activated conductive pathways, strong pressure‐sensitive adhesion, and stable package‐integrated contacts provide high conductivity and extreme stretchability.
Su Thiri San, Ahmed Albeltagi, Mikko Nelo, Jari Juuti, Jarkko Tolvanen, Jari Hannu   +5 more
wiley   +1 more source

Buckling‐Driven Linearity in Flexible Capacitive Pressure Sensors Based on a Three‐Dimensional Dual‐Pore Polyurethane Structure

Advanced Materials Technologies, EarlyView.
A flexible pressure sensor utilizing a 3D dual‐pore polyurethane structure is developed to overcome the intrinsic trade‐off between sensitivity and linearity. By inducing sequential buckling through distinct pore sizes and shapes, the device achieves highly linear and sensitive responses across a wide pressure range.
Jae Yeong Jang, Jaemin Choi, Young Jung
wiley   +1 more source

Distribution and bioactivities of tirucallane-type triterpenoids from Meliaceae family. [PDF]

Nat Prod Bioprospect
Abdullah FF, Putri SA, Najihah NA, Nurlelasari, Safriansyah W, Awang K, Supratman U.   +6 more
europepmc   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

Advanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin, Silvia Monchetti, Paolo Emilio Puddu, Luciano Teresi, Antonio DeSimone, Roberto Brighenti   +5 more
wiley   +1 more source

Damp-Heat Ageing of Resin Insulation Materials (Epoxy Resin and Phenolic Resin as Examples) and Their Effects on Flame Retardancy. [PDF]

Polymers (Basel)
Ming Y, Qiao X, Meng H, Zeng W, Xia X, Yang F, Xu K, Zhang Z, Huang C.   +8 more
europepmc   +1 more source

Luminescence and Photochromism in Lanthanide‐Doped Hackmanites

Advanced Optical Materials, EarlyView.
Lanthanide‐doped lithium hackmanite derivatives are prepared utilizing a doped LiAlSiO4 precursor to modify luminescent and photochromic properties. Upon UV excitation, europium doping results in green Eu2+ persistent luminescence from shallow traps. Contrarily, samarium doping induces unusual near‐infrared photochromism.
Joshua Baggott, Minnea Tuomisto, J. A. Gareth Williams, Sari Granroth, Ermei Mäkilä, Ari Väisänen, Jani O. Moilanen, Mika Lastusaari   +7 more
wiley   +1 more source

Skin Sensitisation and Dermatitis Among Epoxy-Exposed Workers in a Wind Turbine Plant: Influence of Occupational Factors. [PDF]

Contact Dermatitis
Pinheiro V, Botelho-Rodrigues G, da Silva RB, Pacheco V, Marques A, Marques C, Figueiredo C, Christiansen AG, Kolstad HA, Gonçalo M.   +9 more
europepmc   +1 more source

Thermo‐Derived Cholesteric Liquid Crystal Elastomer Pattern with Composite Structural Colors

Advanced Optical Materials, EarlyView.
A thermochromic cholesteric liquid crystal (CLC) oligomer was synthesized for the preparation of CLC elastomer (CLCE) films with dual reflection bands. Subsequently, a CLCE pattern with composite structural colors was prepared, which was suitably applied for decoration and anti‐counterfeiting.
Li Zhong, Yi Li, Wei Liu, Yonggang Yang
wiley   +1 more source

Synthesis of 2-Naphthols via a Trifluoroacetic Acid-Mediated Epoxy Alcohol Rearrangement. [PDF]

J Org Chem
Story JB, Ringler KE, Nguyen CL, Drance MJ, Howard EM.   +4 more
europepmc   +1 more source