Showing 1-30 of 31 results for "DGEBA"
Marine Janvier et al.
ChemSusChem, 10(4), 738-746 (2017-01-04)
A renewable bisepoxide, SYR-EPO, was prepared from syringaresinol, a naturally occurring bisphenol deriving from sinapic acid, by using a chemo-enzymatic synthetic pathway. Estrogenic activity tests revealed no endocrine disruption for syringaresinol. Its glycidylation afforded SYR-EPO with excellent yield and purity....
Mirjana Rodošek et al.
Polymers, 12(3) (2020-03-11)
Versatile product protective coatings that deliver faster drying times and shorter minimum overcoat intervals that enable curing at faster line speeds and though lower energy consumption are often desired by coating manufacturers. Product protective coatings, based on silsesquioxane-modified diglycidyl ether...
R Berruet et al.
Biomaterials, 8(3), 162-171 (1987-05-01)
The aim of this paper was to study the biocompatibility and mechanical properties of materials for orthopaedic and odontologic surgical use. The products used were obtained by polycondensation of a diepoxy resin (DGEBA) with two curing agents (DDM or IPD)....
Study of lanthanide triflates as new curing initiators for DGEBA.
Castell P, et al.
Polymer, 41(24), 8465-8474 (2000)
Divanillin-Based Epoxy Precursors as DGEBA Substitutes for Biobased Epoxy Thermosets
Savonnet E, et al.
ACS sustainable chemistry & engineering, 6(8), 11008-11017 (2018)
New degradable thermosets obtained by cationic copolymerization of DGEBA with an s (γ-butyrolactone).
Gimenez R, et al.
Polymer, 46(24), 10637-10647 (2005)
Effect of amine-functionalized silica nanoparticles on thermal and mechanical behaviors of DGEBA/IPD epoxy networks
Behniafar H and Nazemi MK
Polymer Bull., 74(9), 3739-3749 (2017)
Effect of dendrimer-functionalized magnetic iron oxide nanoparticles on improving thermal and mechanical properties of DGEBA/IPD epoxy networks
Jafari-Soghieh F, et al.
High Performance Polymers, 10(4), 0954008317749020-0954008317749020 (2017)
J E Biles et al.
Journal of agricultural and food chemistry, 47(5), 1965-1969 (1999-12-20)
Migration of the diglycidyl ether of bisphenol A (DGEBA) to food from can enamels and can pull-top seals is reported. Derivatives of DGEBA are also determined in some foods. Levels of DGEBA in the foods surveyed in this study range...
Ann Pontén et al.
Contact dermatitis, 60(2), 79-84 (2009-02-12)
Simultaneous contact allergies to the reactive diluent phenyl glycidyl ether (PGE) and epoxy resins based on diglycidyl ether of bisphenol A (DGEBA) or epoxy resins of the bisphenol F-type have been reported. The latter epoxy resins contain three isomers of...
R Jolanki
Acta dermato-venereologica. Supplementum, 159, 1-80 (1991-01-01)
Of a total of 3731 patients investigated between 1974 and 1990, 1844 (49.4%) had an occupational skin disease. Of them 142 (7.7%) had an occupational skin disease caused by epoxy compounds--135 patients (95%) had allergic contact dermatitis, five had irritant...
Niamh M O'Boyle et al.
Chemical research in toxicology, 27(6), 1002-1010 (2014-05-17)
Epoxy resin monomers (ERMs), especially diglycidyl ethers of bisphenol A and F (DGEBA and DGEBF), are extensively used as building blocks for thermosetting polymers. However, they are known to commonly cause skin allergy. This research describes a number of alternative...
Ran Wei et al.
Molecules (Basel, Switzerland), 23(5) (2018-05-13)
To solve the drawbacks of poor dispersion and weak interface in gas barrier nanocomposites, a novel epoxy-diamine adduct (DDA) was synthesized by reacting epoxy monomer DGEBA with curing agent D400 to functionalize montmorillonite (MMT), which could provide complete compatibility and...
L Kanerva et al.
Dermatology (Basel, Switzerland), 201(1), 29-33 (2000-09-06)
Very little is known about allergic contact dermatitis (ACD) from preimpregnated epoxy products (prepregs). To describe a patient with occupational ACD from prepregs, and report new quantitative data on the content of prepregs. A laminator developed work-related vesicular hand dermatitis....
Magdalena Tarnacka et al.
Nanoscale, 12(19), 10600-10608 (2020-05-07)
Herein, we report the pioneering high-pressure dielectric studies on the dynamics of a model van der Waals glass-forming liquid bisphenol-A diglycidyl ether (DGEBA) infiltrated into anodic aluminum oxide (AAO) templates of the mean pore sizes, d = 150 and d...
Kristiina Aalto-Korte et al.
Contact dermatitis, 61(1), 9-21 (2009-08-08)
Contact allergy to epoxy (meth)acrylates, 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy) phenyl]propane (bis-GMA), 2,2-bis[4-(2-hydroxy-3-acryloxypropoxy)phenyl]-propane (bis-GA), 2,2-bis[4-(methacryl-oxyethoxy)phenyl] propane (bis-EMA), 2,2-bis[4-(methacryloxy)phenyl]-propane (bis-MA), and glycidyl methacrylate (GMA) is often manifested together with contact allergy to diglycidyl ether of bisphenol A (DGEBA) epoxy resin. To analyse patterns of concomitant...
Dailyn Guzmán et al.
Polymers, 12(2) (2020-02-09)
The pure trifunctional glycidyl monomer from phloroglucinol (3EPO-Ph) was synthesized and used as feedstock in the preparation of novel bio-based thermosets by thiol-epoxy curing. The monomer was crosslinked with different commercially available thiols: tetrafunctional thiol (PETMP), trifunctional thiol (TTMP) and...
Quentin Ruiz et al.
Polymers, 12(1) (2020-01-23)
Epoxy resin plays a key role in composite matrices and DGEBA is the major precursor used. With the aim of favouring the use of bio resources, epoxy resins can be prepared from lignin. In particular, diglycidyl ether of isoeugenol derivatives...
D Burrows et al.
Contact dermatitis, 11(2), 80-82 (1984-08-01)
An outbreak of dermatitis occurred in an aircraft factory using epoxy resin composite material. Of 25 operatives, 14 gave positive patch test reactions to the composite material and/or diglycidylether of bisphenol A (DGEBA), tetraglycidyl-4,4'-methylene dianiline (TGMDA), and o-diglycidyl phthalate. This...
Shahina Riaz et al.
Materials (Basel, Switzerland), 12(8) (2019-04-28)
A series of composites was prepared from a diglycidyl ether of bisphenol A (DGEBA) with different graphene filler contents to improve their mechanical performance and thermal stability. Graphene oxide (GO) and GO modified with hexamethylene tetraamine (HMTA) were selected as...
Mian Wang et al.
PloS one, 12(6), e0177673-e0177673 (2017-06-13)
It is challenging to reinforce and toughen thermoset epoxy resins. We describe a slurry-compounding technique to transfer a uniform dispersion of chitin nanowhiskers (CW) in ethanol into an epoxy matrix. The incorporation of the hydrophilic CW reinforces the oil-soluble diglycidyl...
Alvaro Iregui et al.
Polymers, 11(3) (2019-04-10)
In this work Poly ε-caprolactone (PCL)/ Diglycidyl ether of bisphenol A (DGEBA) blends were electrospun and the obtained mats were UV cured to achieve shape memory properties. In the majority of studies, when blends with different compositions are electrospun, the...
Emre Kinaci et al.
Polymers, 12(9) (2020-09-03)
Cardanol is a renewable resource based on cashew nut shell liquid (CNSL), which consists of a phenol ring with a C15 long aliphatic side chain in the meta position with varying degrees of unsaturation. Cardanol glycidyl ether was chemically modified...
K Bogaerts et al.
Soft matter, 11(31), 6212-6222 (2015-07-07)
Brittle epoxy based thermosets can be made tougher by introducing structural inhomogeneities at the micro- or nanoscale. In that respect, nano vesicles and worm-like micelles from self-assembling blockcopolymers have been shown to be very effective. This paper describes the curing...
Frida Román et al.
Materials (Basel, Switzerland), 11(3) (2018-03-10)
Two different commercial hyperbranched poly(ethyleneimine)s (HBPEI), with molecular weights (MW) of 800 and 25,000 g/mol, and denoted as PEI800 and PEI25000, respectively, as well as the mixtures with a Diglycidyl Ether of Bisphenol-A (DGEBA) epoxy resin, have been studied using...
Birgit Bittmann et al.
Ultrasonics sonochemistry, 18(1), 120-126 (2010-04-21)
By the insertion of nanoparticles into a polymer matrix a considerable improvement of mechanical properties can be achieved. Therefore, a homogeneous distribution of fillers within the matrix is required. In the present paper the dispersion of TiO(2)-nanoparticles in a DGEBA...
Yvan Ecochard et al.
Molecules (Basel, Switzerland), 24(9) (2019-05-15)
Epoxy materials have attracted attention for many applications that require fireproof performance; however, the utilization of hazardous reagents brings about potential damage to human health. Eugenol and cardanol are renewable, harmless resources (according to ECHA) that allow the achievement of...
Ida B Niklasson et al.
Chemical research in toxicology, 24(4), 542-548 (2011-03-05)
Epoxy resins are among the most common causes of occupational contact dermatitis. They are normally used in so-called epoxy resin systems (ERS). These commercial products are combinations of epoxy resins, curing agents, modifiers, and reactive diluents. The most frequently used...
Wenzhe Zhao et al.
Polymers, 13(2) (2021-01-23)
Epoxy-anhydride resins are widely used in engineering fields due to their excellent performance. However, the insolubility and infusibility make the recycling of epoxy resins challenging. The development of degradable epoxy resins with stable covalent networks provides an efficient solution to...
Ida B Niklasson et al.
Chemical research in toxicology, 22(11), 1787-1794 (2009-09-04)
Epoxy resins can be prepared from numerous chemical compositions. Until recently, alternatives to epoxy resins based on diglycidyl ethers of bisphenol A (DGEBA) or bisphenol F (DGEBF) monomers have not received commercial interest, but are presently doing so, as epoxy...

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