Buscar
Mostrando ítems 1-10 de 153
General concepts about epoxy polymers
(Wiley-VCH, 2010)
The chapters describes the polymerization chemistry of epoxy monomers, the transformations taking place during the formation of an epoxy network and the general properties of epoxy networks.
Epoxy/anhydride networks modified by epoxy/anhydride oligomers containing SiOH groups
(John Wiley & Sons Inc, 2000-02-07)
Epoxy/anhydride oligomers containing variable amounts of trialkoxysilane groups were synthesized from phenyl glycidyl ether (PGE), 3-glycidoxypropyl trimethoxysilane (GPMS), and methyl tetrahydrophthalic anhydride (MTHPA), ...
Epoxy networks containing large mass fractions of a monofunctional Polyhedral Oligomeric Silsesquioxane (POSS)
(American Chemical Society, 2003-05)
A polyhedral oligomeric silsesquioxane (POSS) containing one epoxy group and seven isobutyl groups per molecule was incorporated into an epoxy network following a two-stage process. In the first stage, POSS was reacted ...
Epoxy vitrimers: The effect of transesterification reactions on the network structure
(MDPI AG, 2018-01-03)
Vitrimers are covalently crosslinked polymers that behave as conventional thermosets below the glass transition temperature (Tg) but can flow above a particular temperature, Tv > Tg, by bond exchange reactions. In epoxy ...
Epoxy networks modified by multifunctional polyhedral oligomeric silsesquioxanes (POSS) containing amine groups
(Springer, 2008-07)
The hydrolytic condensation of a precursor synthesized by the reaction of equimolar amounts of (3-aminopropyl)triethoxysilane and phenylglycidylether led to a distribution of polyhedral oligomeric silsesquioxanes (POSS) ...
Shape memory epoxies based on networks with chemical and physical crosslinks
(Elsevier, 2011-03-30)
Epoxies are an important family of shape memory polymers (SMP) due to their excellent stability and thermo-mechanical endurance and the high values of shape fixity and shape recovery. Actuators based on these materials can ...
Synthesis of oligomeric silsesquioxanes functionalized with (β-carboxyl)ester groups and their use as modifiers of epoxy networks
(Pergamon-Elsevier Science Ltd, 2007-07-27)
A silsesquioxane functionalized with (β-carboxyl)ester groups was synthesized by reacting a silsesquioxane functionalized with secondary hydroxyls with a stoichiometric amount of an acid anhydride. The reaction could be ...
Epoxy networks based on solutions of silsesquioxanes functionalized with 3-glycidoxypropyl groups in diglycidylether of bisphenol A (DGEBA)
(Springer, 2001-10-20)
In previous publications we reported the synthesis and characterization of silsesquioxanes derived from the hydrolytic condensation of (3-glycidoxypropyl) trimethoxysilane (GPMS) using diglycidylether of bisphenol A (DGEBA) ...
Durability of adhesives based on different epoxy/aliphatic amine networks
(Elsevier B.V., 2011-06-01)
The mechanical and adhesives properties of epoxy formulations based on diglycidyl ether of bisphenol A cured with various aliphatic amines were evaluated in the glass state. Impact tests were used to determine the impact ...
Durability of adhesives based on different epoxy/aliphatic amine networks
(Elsevier B.V., 2011-06-01)
The mechanical and adhesives properties of epoxy formulations based on diglycidyl ether of bisphenol A cured with various aliphatic amines were evaluated in the glass state. Impact tests were used to determine the impact ...