Results 21 to 30 of about 2,767,015 (326)

Gas transport and separation with ceramic membranes. Part II: Synthesis and separation properties of microporous membranes [PDF]

open access: yes, 1992
Non-supported microporous silica (amorphous) and titania thin films were made by the polymeric gel route. The titania system consisted of particles smaller than 5 nm.
Burggraaf, A.J.   +2 more
core   +3 more sources

Ring-opening copolymerization (ROCOP): synthesis and properties of polyesters and polycarbonates [PDF]

open access: yes, 2015
Controlled routes to prepare polyesters and polycarbonates are of interest due to the widespread application of these materials and the opportunities provided to prepare new copolymers. Furthermore, ring-opening copolymerization may enable new poly(ester–
Brooks, R   +5 more
core   +1 more source

Chemical Solution Deposition of Barium Titanate Thin Films with Ethylene Glycol as Solvent for Barium Acetate

open access: yesMolecules, 2022
Chemical solution deposition (CSD) of BaTiO3 (BT) or BT-based thin films relies on using a carboxylic acid and alcohol as the solvents for alkaline-earth carboxylate and transition-metal alkoxide, respectively; however, the esterification reaction of the
Sabi William Konsago   +5 more
doaj   +1 more source

Use of metal catalysts bearing Schiff base macrocycles for the ring opening polymerization (ROP) of cyclic esters [PDF]

open access: yes, 2017
© 2017 by the authors. Schiff base macrocycles are emerging as useful scaffolds for binding two or more catalytic metals in close proximity. Such coordination chemistry allows for the evaluation of potentially beneficial catalytic cooperative effects. In
Redshaw, Carl
core   +2 more sources

Synthesis and structure of a new bulky bis(alkoxide) ligand on a terphenyl platform

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
A new sterically bulky chelating bis(alkoxide) ligand 3,3′-([1,1′:4′,1′′-terphenyl]-2,2′′-diyl)bis(2,2,4,4-tetramethylpentan-3-ol), (H2[OO]tBu), was prepared in a two-step process as the dichloromethane monosolvate, C36H50O2·CH2Cl2.
Sudheer S. Kurup   +3 more
doaj   +1 more source

Controlling Metal-to-Oxygen Ratios via M═O Bond Cleavage in Polyoxovanadate Alkoxide Clusters.

open access: yesInorganic Chemistry, 2019
In this manuscript, we further investigate the use of Lindqvist polyoxovanadate alkoxide (POV-alkoxide) clusters as homogeneous molecular models of reducible metal oxides (RMO), focusing on the structural and electronic consequences of forming one or two
Brittney E. Petel   +4 more
semanticscholar   +1 more source

Continuous Synthesis of Monodispersed Alumina Particles by the Hydrolysis of Metal Alkoxide Using a Taylor Vortex [Translated]†

open access: yesKONA Powder and Particle Journal, 2014
A continuous reactor was developed for industrial production of monodispersed alumina particles from metal alkoxide. Taylor vortex flows were used for solution mixing.
Takashi Ogihara, Mamoru Nomura
doaj   +1 more source

Preparation of Ni–YSZ thin and thick films on metallic interconnects as cell supports. Applications as anode for SOFC [PDF]

open access: yes, 2008
In this work, we propose the preparation of a duplex anodic layer composed of both a thin (100 nm) and a thick film (10 lm) with Ni–YSZ material. The support of this anode is a metallic substrate, which is the interconnect of the SOFC unit cell.
A Mehner   +21 more
core   +3 more sources

Surprisingly facile CO2 insertion into cobalt alkoxide bonds: A theoretical investigation

open access: yesBeilstein Journal of Organic Chemistry, 2015
Exploiting carbon dioxide as co-monomer with epoxides in the production of polycarbonates is economically highly attractive. More effective catalysts for this reaction are intensively being sought.
Willem K. Offermans   +3 more
doaj   +1 more source

Synthesis and characterization of Ti-/Zr-diphenylpropanedione complexes and their application in the ring opening polymerization of Ɛ-caprolactone

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2018
The purpose has been to achieve a controlled ring-opening polymerization of ɛ-caprolactone, resulting in polymers with desirable properties such as high molecular weight, low polydispersity index, and highly regio-/stereo regular forms.
Yağmur Gökalp, Asgar Kayan
doaj   +1 more source

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