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One-step oxidehydration of glycerol to acrylic acid using ETS-10-like vanadosilicates
(2016-09-15)
Vanadosilicates isostructural to ETS-10 and AM-6 microporous materials were synthesized hydrothermally using derivatives of cis- and trans-3,5-dimethyl-piperidine as organic structure directing agents (SDAs) and were ...
Exploring the multifunctionality and accessibility of vanadosilicates to produce acrylic acid in one-pot glycerol oxydehydration
(2020-07-25)
Acrylic acid is one of the most attractive products directly produced from glycerol, and many efforts are still made to thoroughly understand the role of different catalytic sites in the reaction. In this work, we prepared ...
Effect of disinfectant solutions on a denture base acrylic resin.
(2012-12-01)
The aim of this study was to evaluate the hardness, roughness and mass loss of an acrylic denture base resin after in vitro exposure to four disinfectant solutions. Forty specimens (Clássico, Brazil) were prepared and ...
Assessment of the flexural strength of two heat-curing acrylic resins for artificial eyes
(2009-12-28)
Prosthetic eyes are artificial substitutes for the eyeball, made of heat-curing acrylic resin, serving to improve the esthetic appearance of the mutilated patient and his/her inclusion in society. The aim of this study was ...
MONOMER UNITS DIFFERENTIATED SOLVATION IN AN ACRYLIC ACID CROSSLINKED POLYELECTROLYTE. A COMBINED HF/MD STUDY&
(Sociedad Chilena de Química, 2001)
The multiple benefits of glycerol conversion to acrolein and acrylic acid catalyzed by vanadium oxides supported on micro-mesoporous MFI zeolites
(2017-01-01)
The ZSM-5 zeolite (MFI structure, Si/Al = 40) was treated using NaOH and either oxalic acid or HCl to obtain hierarchical materials with different characteristics, followed by impregnation with vanadium oxides (V2O5) to ...
One-step glycerol oxidehydration to acrylic acid on multifunctional zeolite catalysts
(Elsevier B.V., 2015-02-25)
The catalytic behavior of bifunctional V2O5/MFI catalysts with acid and oxidizing properties was investigated for the gas-phase oxidehydration of glycerol. One of the main reaction products was acrylic acid, produced by ...
Effect of weathering and thickness on roughness of acrylic resin and ocular button
(2010-06-01)
Purpose: The aim of this study was to evaluate the roughness of colorless ocular button and four brands of colorless acrylic resins designed to fabricate ocular prosthesis as a function of weathering (1008 h) and different ...
In vitro adhesion of Candida glabrata to denture base acrylic resin modified by glow-discharge plasma treatment
(2013-03-01)
This study evaluated the potential of plasma treatments to modify the surface chemistry and hydrophobicity of a denture base acrylic resin to reduce the Candida glabrata adhesion. Specimens (n=54) with smooth surfaces were ...