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Synthesis, characterization and catalytic application of a new organometallic oligomer based on polyhedral oligomeric silsesquioxane
(2017-10-01)
Although homogeneous catalysts provide high performance and selectivity, the difficulty of separation and recycling of these catalysts has bothered the scientific community worldwide. Therefore, the demand for heterogeneous ...
Synthesis of two new Mo(II) organometallic catalysts immobilized on POSS for application in olefin oxidation reactions
(2017-01-01)
The purpose of this work was the preparation and characterization of two new catalysts POSS-ATZAc-[Mo(η3-C3H5)Br(CO)2] (POSS-Mo-I) and POSS-ATZAc-[Mo(CO)3Br2] (POSS-Mo-II). The new heterogeneous catalysts were characterized ...
Marginal integrity of restorations produced with a model composite based on polyhedral oligomeric silsesquioxane (POSS)
(Univ Sao Paulo Fac Odontologia Bauru, 2015-09-01)
Marginal integrity is one of the most crucial aspects involved in the clinical longevity of resin composite restorations. Objective: To analyze the marginal integrity of restorations produced with a model composite based ...
Silsesquioxanes functionalized with one or two side-chain amino groups as coinitiators of camphorquinone in photoinitiated polymerization of methacrylate monomers
(European Centre for Nanoestructured Polymers, 2012-10-16)
Organotrialkoxysilanes (APS-PGE2) and (DAS-PGE3) were synthesized by reacting 1 mole of 3-(aminopropyl)triethoxysilane (APS) with 2 mole of phenylglycidylether (PGE) or 1 mole of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane ...
Nanocompósitos baseados no sistema epoxídico DEGBA/DETA modificado com uma resina epoxídica de silsesquioxano
(Universidade Estadual Paulista (Unesp), 2006-08-30)
Polímeros epoxídicos são um dos mais importantes tipos de polímeros termorrígidos, extensivamente usados como adesivos e estruturas. Em reações epoxídicas são convertidos em um sistema termorrígido pela ação de agentes de ...
Nanocompósitos baseados no sistema epoxídico DEGBA/DETA modificado com uma resina epoxídica de silsesquioxano
(Universidade Estadual Paulista (Unesp), 2006-08-30)
Polímeros epoxídicos são um dos mais importantes tipos de polímeros termorrígidos, extensivamente usados como adesivos e estruturas. Em reações epoxídicas são convertidos em um sistema termorrígido pela ação de agentes de ...
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite
(2013-04-01)
This paper describes the preparation, and voltammetric application of a hybrid nanocomposite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane (SS) modified with 4-amino-5-4 (pyridyl)-4H-1,2,4-triazole-3-thiol ...
A new hybrid polyhedral cubic silsesquioxane chemically modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and copper hexacyanoferrate(III) for voltammetric determination of nitrite
(2013-04-01)
This paper describes the preparation, and voltammetric application of a hybrid nanocomposite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane (SS) modified with 4-amino-5-4 (pyridyl)-4H-1,2,4-triazole-3-thiol ...
Nanocompósitos baseados no sistema epoxídico DEGBA/DETA modificado com uma resina epoxídica de silsesquioxano
(Universidade Estadual Paulista (UNESP), 2014)