Results 11 to 20 of about 225,466 (357)

High Performance Concrete Improvement by Styrene-Butadiene Rubber Addition [PDF]

open access: yesEngineering and Technology Journal, 2016
In this paper, the properties of high performance concretes modified by polymer were studied. Liquid synthetic styrene-butadiene rubber (SBR) was added (5%, 10% and 15%) by weight of cement to high performance concrete (HPC) to elucidate the effect of ...
Alaa Abdulhasan Atiyah   +2 more
doaj   +1 more source

Quinazolin-4(3H)-ones: A Tangible Synthesis Protocol via an Oxidative Olefin Bond Cleavage Using Metal-Catalyst Free Conditions

open access: yesApplied Sciences, 2020
An efficient and selective oxidative procedure for the synthesis of quinazolinones from readily available o-aminobenzamides and styrenes was developed.
Muhammad Sharif
doaj   +1 more source

Modeling Styrene−Styrene Interactions

open access: yesThe Journal of Physical Chemistry A, 2005
This study is the first step in the systematic investigation of substituted (carboxyl) polystyrene nanoparticles. Understanding the fundamental interactions between the p-carboxyl styrene monomers, where an ethyl group is used instead of a vinyl group (referenced, for convenience, as "p-carboxyl styrene"), provides the basic information needed to ...
Adamovic, Ivana   +3 more
openaire   +4 more sources

Novel ETFE based radiation grafted poly(styrene sulfonic acid-co-methacrylonitrile) proton conducting membranes with increased stability [PDF]

open access: yes, 2009
Styrene radiation grafted ETFE based proton conducting membranes are subject to degradation under fuel cell operating conditions and show a poor stability. Lifetimes exceeding 250 h can only be achieved with crosslinked membranes.
Alkan Gursel, Selmiye   +7 more
core   +2 more sources

Chain-Selective and Regioselective Ethylene and Styrene Dimerization Reactions Catalyzed by a Well-Defined Cationic Ruthenium-Hydride Complex: New Insights on the Styrene Dimerization Mechanism [PDF]

open access: yes, 2010
The cationic ruthenium hydride complex [(η6-C6H6)(PCy3)(CO)RuH]+BF4− was found to be a highly regioselective catalyst for the ethylene dimerization reaction to give 2-butene products (TOF = 1910 h−1, \u3e95% selectivity for 2-butenes).
Lee, Do W., Yi, Chae S.
core   +3 more sources

Identification of a Novel Self-Sufficient Styrene Monooxygenase from Rhodococcus opacus 1CP. [PDF]

open access: yes, 2009
Sequence analysis of a 9-kb genomic fragment of the actinobacterium Rhodococcus opacus 1CP led to identification of an open reading frame encoding a novel fusion protein, StyA2B, with a putative function in styrene metabolism via styrene oxide and ...
Berkel, W.J.H., van   +5 more
core   +4 more sources

Identification of volatile organic compounds (VOCs) in plastic products using gas chromatography and mass spectrometry (GC/MS)

open access: yesRevista Ambiente & Água, 2014
Plastic materials are widely used in daily life. They contain a wide range of compounds with low molecular mass, including monomeric and oligomeric residues of polymerization, solvent-related chemicals residues, and various additives.
Nerlis Pajaro-Castro   +2 more
doaj   +1 more source

Oxidation of Styrene to Benzaldehyde Catalyzed by Schiff Base Functionalized Triazolylidene Ni(II) Complexes

open access: yesMolecules, 2022
Four new Schiff base functionalized 1,2,3-triazolylidene nickel complexes, [Ni-(L1NHC)2](PF6)2; 3, [Ni-(L2NHC)2](PF6)2; 4, [Ni-(L3NHC)](PF6)2; 7 and [Ni-(L4NHC)](PF6)2; 8, (where L1NHC = (E)-3-methyl-1-propyl-4-(2-(((2-(pyridin-2-yl)ethyl)imino)methyl ...
Nasir S. Lawal   +2 more
doaj   +1 more source

Biofiltration of a styrene/acetone vapor mixture in two reactor types under conditions of styrene overloading

open access: yesBrazilian Archives of Biology and Technology, 2014
This aim of study was to compare the performance of a biofilter (BF) and trickle bed reactor (TBR) under increased styrene loading with a constant acetone load, 2 gc/m3/h.
Lubos Zapotocky   +6 more
doaj   +1 more source

Anionic Polymerization Using Flow Microreactors

open access: yesMolecules, 2019
Flow microreactors are expected to make a revolutionary change in chemical synthesis involving various fields of polymer synthesis. In fact, extensive flow microreactor studies have opened up new possibilities in polymer chemistry including cationic ...
Yusuke Takahashi, Aiichiro Nagaki
doaj   +1 more source

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