Results 71 to 80 of about 186,604 (297)

Robust Polymer Hydrogels Improve Electric‐Fish‐Inspired Batteries

Advanced Functional Materials, EarlyView.
ABSTRACT Electric‐fish‐inspired hydrogel batteries based on ion‐concentration gradients offer an attractive route to soft power sources; however, the poor mechanical properties of existing hydrogels limit device assembly and performance. Here, we report poly(ethylene glycol) methyl ether acrylate hydrogels that enable ion‐gradient batteries composed of
Nick Zahnd, Satyajit Das, John Marc C. Puguan, Carolina Pierucci, Michael Mayer, Christoph Weder   +5 more
wiley   +1 more source

Small Businesses, Public Health, and Scientific Integrity [PDF]

, 2013
This report examines the activities of an independent office within the Small Business Administration: the Office of Advocacy. The Office of Advocacy has responsibility for ensuring that federal agencies evaluate the small business impacts of the rules ...
Katie Greenhaw, Katie Weatherford, Randy Rabinowitz   +2 more
core  

Analysis of products from the pyrolysis of plastics recovered from the commercial scale recycling of waste electrical and electronic equipment [PDF]

, 2007
Three plastic fractions from a commercial waste electrical and electronic equipment (WEEE) processing plant were collected and investigated for the possibility of recycling them by batch pyrolysis. The first plastic was from equipment containing cathode
Hall, W.J., Williams, P.T.
core   +1 more source

Assembly of Cell‐Seeded 3D Printed Hydrogel Modules with Perfusable Channel Networks

Advanced Functional Materials, EarlyView.
Macroscale assembly was utilized to prepare perfusable tissue constructs from individually 3D printed hydrogel modules with embedded branched channel networks and port arrays for cell seeding. Novel multi‐material bioreactors were fabricated to facilitate the gluing of individual modules and the perfusion culture of assembled modular constructs seeded ...
Zachary J. Geffert, Daniel Fougnier, Bo Van Durme, Jenna Grutzmacher, Ryan Clarke, Susan Cao, Zhenghao Li, Ujjwal Aryal, Jason A. Horton, Sandra Van Vlierberghe, Pranav Soman   +10 more
wiley   +1 more source

Synthesis of cellulose based graft polymers using metal-catalyzed living radical polymerization [PDF]

شیمی کاربردی روز, 2016
A copolymer composed of styrene and acrylonitrile was grafted onto cellulose backbone by free radical polymerization and atom transfer radical polymerization (ATRP) method.
مجتبی عباسیان, موسی پاک زاد   +1 more
doaj   +1 more source

Toward reliable morphology assessment of thermosets via physical etching: Vinyl ester resin as an example [PDF]

, 2013
The morphology of peroxide-cured, styrene crosslinked, bisphenol A-based vinyl ester (VE) resin was investigated by atomic force microscopy (AFM) after ‘physical’ etching with different methods.
Bonyár, A., Elsasser, J., Grishchuk, S., Karger-Kocsis, J., Wetzel, B., Wolynski, A.   +5 more
core   +2 more sources

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Computer modeling of the synthesis of styrene–butadiene rubber: Influence of the feed of a chain transfer agent on the characteristics of the product

Тонкие химические технологии
Objectives. To develop mathematical approaches and algorithms for analyzing the influence of various methods for feeding a chain transfer agent to a cascade of reactors, taking into account the choice of feed points on the characteristics of the final ...
T. A. Mikhailova, S. A. Mustafina
doaj   +1 more source

Engineering of Syndiotactic and Isotactic Polystyrene-Based Copolymers via Stereoselective Catalytic Polymerization

Molecules, 2017
This contribution presents an updated overview of the different copolymers containing stereoregular polystyrene blocks. Special emphasis is placed on syndiospecific and isospecific copolymerization of styrene with co-monomers (ethylene and α-olefins ...
Eva Laur, Evgueni Kirillov, Jean-François Carpentier   +2 more
doaj   +1 more source

Micro- vs. macro-phase separation in binary blends of poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide) diblock copolymers [PDF]

, 2001
In this paper we present an experimentally determined phase diagram of binary blends of the diblock copolymers poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide). At high temperatures, the blends form an isotropic mixture. Upon lowering
A. J Ryan, Frielinghaus H., H Frielinghaus, Hamley I. W., I. W Hamley, J. P. A Fairclough, K Almdal, K Mortensen, L Corvazier, L Messé, N Hermsdorf, Olmsted P. D., P. D Olmsted   +12 more
core   +1 more source