Results 31 to 40 of about 6,361 (234)

Mechanochemical Suzuki polymerization for the synthesis of polyfluorenes

open access: yesGreen Chemistry Letters and Reviews, 2022
Herein are reported the syntheses of poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PF), poly(9,9-dioctylfluorene-alt-benzothiadiazole) (PFBT), and poly[(9,9-bis(3′-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN) by employing ...
L. P. Tharika Nirmani   +2 more
doaj   +1 more source

Exploring the Effects of Synthetic and Postsynthetic Grinding on the Properties of the Spin Crossover Material [Fe(atrz)3](BF4)2 (atrz = 4-Amino-4H-1,2,4-Triazole)

open access: yesMagnetochemistry, 2020
The effects of mechanochemical synthesis and postsynthetic grinding on the spin crossover material [Fe(atrz)3](BF4)2 was examined in detail using a combination of X-ray diffraction, magnetometry, EXAFS and TEM.
Jed H. Askew   +4 more
doaj   +1 more source

Extending mechanochemical porphyrin synthesis to bulkier aromatics: tetramesitylporphyrin

open access: yesBeilstein Journal of Organic Chemistry, 2019
Aldehydes with bulky substituents in the ortho-positions have been historically difficult in porphyrin synthesis, presumably owing to steric hindrance around the reactive site.
Qiwen Su, Tamara D. Hamilton
doaj   +1 more source

Mechanistic Insights into a Sustainable Mechanochemical Synthesis of Ettringite

open access: yesChemistryOpen, 2019
Mechanochemistry offers an environmentally benign and facile synthesis method for a variety of cement paste constituents. In addition, these methods can be used to selectively tune the properties of cement components.
Dr. Julia Stroh   +4 more
doaj   +1 more source

Preparation of powder coatings on the surface of steel balls by mechanochemical synthesis

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2020
This work presents the results of the study of tribological and corrosion properties of powder coatings based on VN, TiN, SiC and Cr2N obtained by mechanochemical synthesis on the surface of steel balls ShKh15.
Б.К. Рахадилов   +4 more
doaj   +1 more source

Fast synthesis of the polycrystalline materials on the base of Zn 3 V2 MoO11 and Zn 2.5 VMoO8 [PDF]

open access: yesProcessing and Application of Ceramics, 2009
In our study we applied two different techniques for the preparation of Zn3V2MoO11 and Zn2.5VMoO8 polycrystalline materials - melt quenching method (up-bottom) and mechanochemical synthesis (bottom- up).
Maya Markova-Velichkova, Reni Iordanova
doaj  

Mechanochemistry vs Conventional Solid-State Synthesis: A Sustainable Development Pathway [PDF]

open access: yesMATEC Web of Conferences
The shift to sustainable chemical manufacturing highlights the need for solid-state synthesis methods that minimize solvent use, energy consumption and environmental impact.
Chen Yinuo
doaj   +1 more source

Mechanochemical activation of batch during fabrication of highly-porous cordierite materials based on natural oxide compounds [PDF]

open access: yesScience of Sintering, 2006
Using X-ray diffraction analysis and infrared spectroscopy techniques, the effect of additives on phase composition variation during mechanochemical activation of a kaolin-containing cordierite batch was investigated.
Antsiferov V.N.   +2 more
doaj   +1 more source

Mechanochemical synthesis of an elusive fluorinated polyacetylene

open access: yesNature Chemistry, 2019
Polymer mechanochemistry has traditionally been employed to study the effects of mechanical force on one or two chemical bonds within a polymer. It is underexploited for the scalable synthesis of wholly new materials by activating bonds along the entire polymer, especially products inaccessible by other means. Herein we utilize polymer mechanochemistry
Benjamin R. Boswell   +9 more
openaire   +2 more sources

Mechanochemical synthesis of poly(trimethylene carbonate)s: an example of rate acceleration

open access: yesBeilstein Journal of Organic Chemistry, 2019
Mechanochemical polymerization is a rapidly growing area and a number of polymeric materials can now be obtained through green mechanochemical synthesis.
Sora Park, Jeung Gon Kim
doaj   +1 more source

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