Thiol-epoxy
Web2 days ago · Degradation of thiol-cured disulfide-based epoxy vitrimers. The thiol-cured disulfide-based epoxy vitrimers were applied as adhesives to bond the aluminum clamps. … WebOct 5, 2024 · Overall, therefore, the thiol-epoxy reaction is highly utilitarian in the context of polymer synthesis. Our aim in this article is to trace our own steps in this area of research and document the journey from initial simple synthetic efforts to the current functional materials prepared by the thiol-epoxy ‘click’ reaction.
Thiol-epoxy
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WebMar 18, 2024 · [7-10] Surface modification via the thiol–epoxy reaction is a useful way for functionalization of different solid substrates. For this, substrates can be designed to carry polymers or immobilized small molecular species containing reactive thiol or epoxide sites. The surface functionalization can then be done either by using another polymer ... WebJun 20, 2024 · The vinyl, thiol, and epoxy groups were followed under air and in laminate under [email protected] and 405 nm. Effective kinetic profiles for the concomitant thiol−ene process and cationic photopolymerization of the limonene 1,2 epoxide/trithiol blend mixture are observed under [email protected] and 405 nm exposure with HNQA/Iod ( Figure 6 ...
WebAug 29, 2024 · Photobase generator (PBG)-mediated thiol–epoxy photopolymerization has received widedspread attention due to its versatility in various applications. Currently, nearly all reported PBGs release amines as active species. The formed amines induce odor, yellowing, and potential toxicity. In this study, a series of novel thioxanthone-based PBGs, … WebJan 23, 2024 · Thiol–epoxy condensation takes place initially to form prepolymer. Then, acrylate is added into the prepolymer and mixed homogeneously to participate in thiol–ene Michael addition for preparation of intermediate polymer. After the second photo-curing stage, final polymer obtains. Therefore, promising applications will be achieved in ...
WebDec 14, 2024 · The synthesis of photo-responsive thiol-epoxy networks follows a photobase-catalyzed nucleophilic ring opening of epoxy monomers with photolabile o-nitrobenzyl ester (o-NBE) groups across multi-functional thiols. To ensure temporal control of the curing reaction, a photolatent base is employed releasing a strong amidine-type …
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WebMar 12, 2024 · Consequently, thiol-ene/thiol-epoxy polymers were obtained by combining UV and thermal curing of acrylated epoxidized soybean oil and epoxidized linseed oil with thiols, benzene-1,3-dithiol and pentaerythritol tetra(3-mercaptopropionate). Thiol-epoxy reaction was studied by calorimetry. The changes of rheological properties were … donovan biographieWebThe off-stoichiometry thiol-ene-epoxies, or OSTE+ polymers, are created in a two-step curing process where a first rapid thiol-ene reaction defines the geometric shape of the polymer … ra-07501WebA rapid and efficient method to obtain self-healing epoxy resins is discussed. This method is based on the use of a thiol-disulfide oligomer obtained by partial oxidation of a multifunctional thiol using a hypervalent iodine (III) compound as oxidant. The oligomer was characterized by Fourier transform infrared spectroscopy (FTIR), Raman and nuclear … donovan blake mdWebWe demonstrate high efficiency and simplicity of the thiol–epoxy reaction towards preparation of a wide range of main-chain as well as end-chain multifunctional polymers. Jump to main content Jump to site search donovan brayWebTaking advantage of the ring-opening of thiolactone, the fluoro compound efficiently reacted with a cycloaliphatic epoxy in a thiol-epoxy click manner. The thiolactone termination strategy also prevented the oxidation of thiol groups and the formation of micelle-like structures, which reduced the phase separation and guaranteed high transparency. ra-07705WebFeb 1, 2024 · Thiol-epoxy click reaction was used as an energy-saving and high-efficient crosslinking approach. • THBP-n were used to crosslink diglycidyl ether of bisphenol-A … donovan blake cardiologistWebNov 1, 2015 · For the thiol-epoxy reaction without DBU, the overall reaction order (m + n) is approximately 3 (with m ≈ 2 and n ≈ 1) but decreases to 2 (with m ≈ 1 and n ≈ 1) upon addition of DBU. Based ... donovan brambila