Results 71 to 80 of about 42,759 (257)

Simulação numérica aplicada para avaliar o efeito da pré-polimerização no comportamento de reatores tubulares Numerical simulation to evaluate the effect from pre-polymerization on the behavior of tubular reactors

open access: yesPolímeros, 2007
O presente estudo utiliza um modelo matemático fenomenológico para simular um sistema de polimerização contínuo em dois estágios. Este sistema é composto por um reator contínuo tipo tanque agitado (CSTR), para pré-polimerização do monômero (primeiro ...
André L. Nogueira   +3 more
doaj   +1 more source

Double‐Sided Mechanical Interlocking Enables Soft‐Rigid Conductive Interfaces With a Record High Toughness for Flexible Electronics

open access: yesAdvanced Materials, EarlyView.
A double‐sided mechanical interlocking strategy is developed to create robust electrical contact between polymer electrode and metal interconnect. The fibrous structure enables formation of thread–hole adhesion, which only breaks under bulk failure and achieves a record high interfacial energy exceeding 730 J·m−2. This adhesion secures the integrity of
Gang Li   +6 more
wiley   +1 more source

MODIFICATION EFFECT OF AL2O3 NANOFIBRES AND MALEIC ANHYDRIDE STYRENE COPOLYMER ON ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE: MECHANIC AND TRIBOLOGICAL PROPERTIES

open access: yesAdvanced Engineering Research, 2012
The test results on the mechanical and tribological properties of the composite materials based on ultrahigh molecular weight polyethylene, chemically styrenated by maleic anhydride, depending on the component s and filler content, such as aluminium ...
Victor V. Ilyasov, Van Chuong Nguyen
doaj  

Carbolithiation of N-alkenyl ureas and N-alkenyl carbamates

open access: yesBeilstein Journal of Organic Chemistry, 2013
N-Alkenyl ureas and N-alkenyl carbamates, like other N-acyl enamines, are typically nucleophilic at their β-carbon. However, by incorporating an α-aryl substituent, we show that they will also undergo attack at the β-carbon by organolithium nucleophiles,
Julien Lefranc   +2 more
doaj   +1 more source

Pyrolysis Induced Interphase and Structural Stabilization of Silicon‐Tin Disulfide/PAN Composite Electrode Materials for Li‐Ion Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
A Si and SnS2 based dual‐alloy anode material for metal‐ion battery applications with improved structural, interfacial and electrochemical properties is synthesized via a single‐step solid‐state pyrolysis process. During the pyrolysis step, SnS2 and Si are embedded in a porous, carbonized PAN‐based matrix, which is electronically and ionically ...
Akzhan Bekzhanov   +2 more
wiley   +1 more source

Facile Synthesis and Application of Dibutyl Aminophosphonate Polymer for Robust Uranium Capture from Concentrated Nitric Acid Process Streams

open access: yesAdvanced Materials Interfaces, EarlyView.
Dibutyl aminophosphonate (DiBAP) resin enables rapid, highly selec ve recovery of trace U(VI) from strongly acidic streams, with excellent acid stability, efficient column performance, and quan ta ve regenera on using ammonium carbonate. ABSTRACT The recovery of trace uranium from strongly acidic streams generated during uranium processing is of ...
Vinita Kumari   +4 more
wiley   +1 more source

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

open access: yesAdvanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source

Evaluation of photocatalytic removal of styrene from air flow using ZnO nanoparticles immobilized on ZSM-5 zeolite

open access: yesسلامت و محیط, 2017
Background and Objective: Styrene monomer is a volatile organic compound that is used in the various industries. Due to the hazardous effects of this chemical substance on the environment and humans, control and elimination of this vapour is necessary ...
H Irvani   +3 more
doaj  

Sustainability and Environmental Impact of Polymer Concrete with Styrene Monomer and GGBFS In Structural Applications: A Literature Review

open access: yesRekayasa Sipil
Polymer concrete using styrene monomer and Ground Granulated Blast Furnace Slag (GGBFS) as key components show great potential in sustainability and environmental impact for structural applications.
Wahyu Nursamhuda   +2 more
doaj   +1 more source

Hybrid Magnetoactive Soft Elastomers: Material Development Toward Application in Diaphragm Pumps

open access: yesAdvanced Materials Technologies, Volume 11, Issue 11, 5 June 2026.
Hybrid magnetoactive soft elastomeric membranes are developed by combining two different types of magnetic particles. The membranes exhibit distinct mechanical, magnetic and thermal properties owing to the unique characteristics of the two magnetic particles.
Somashree Mondal   +4 more
wiley   +1 more source

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