Preparation of photocurable silica–titania hybrid coatings by an anhydrous sol–gel process

Altıntaş, Zerrin; Çakmakçı, Emrah; Kahraman, Memet Vezi̇r; Kayaman‐Apohan, Nilhan; Güngör, Atilla

doi:10.1007/s10971-011-2435-6

Cited by 17 publications

(13 citation statements)

References 19 publications

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“…These features of the process make it possible to successfully synthesize high quality hybrid nanomaterials with metallic filling (for example, titania) [37,38]. The sol-gel process involving tetra- n -butyl titanate made it possible to obtain a high-temperature resistant material with high transparency, where titania crystallization was suppressed by the surrounding MQ copolymer to the size of metal particles of 50 nm [25].…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of MQ Copolymers: Current State of Knowledge

2017

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In this review, we discuss currently available studies on the synthesis and properties of MQ copolymers. The data on methods of producing hydrolytic and heterofunctional polycondensation of functional organosilanes as well as the obtaining MQ copolymers based on silicic acids and nature silicates are considered. The ratio of M and Q monomers and the production method determine the structure of MQ copolymers and, accordingly, their physicochemical characteristics. It is shown that the most successful synthetic approach is a polycondensation of organoalkoxysilanes in the medium of anhydrous acetic acid, which reduces the differences in reactivity of M and Q monomers and leads to obtaining a product with uniform composition in all fractions, with full absence of residual alkoxy-groups. The current concept of MQ copolymers is that of organo-inorganic hybrid systems with nanosized crosslinked inorganic regions limited by triorganosilyl groups and containing residual hydroxyl groups. The systems can be considered as a peculiar molecular composites consisting of separate parts that play the role of a polymer matrix, a plasticizer, and a nanosized filler.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of MQ Copolymers: Current State of Knowledge

2017

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“…An anhydrous sol–gel process was performed with boric acid and methacryloxymethy‐triethoxysilane according to literature . Briefly, 0.6130 g (0.01 mol) boric acid and 2.922 g (0.01 mol) MEMO were charged into a flame‐dried one‐necked round‐bottom flask equipped with a reflux condenser and placed in a water bath.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous study, we prepared photocurable silica‐titania‐organic hybrid coatings via an anhydrous sol–gel method . In this study, the effect of fluorine was investigated on the properties of photocurable hybrid coatings which were prepared using the same anhydrous method without the addition of titania.…”

Section: Introductionmentioning

confidence: 99%

Fluorine-containing photocurable hybrid coatings via anhydrous sol-gel method

Çakmakçı

Altıntaş

Kahraman

et al. 2014

J Vinyl Addit Technol

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In this study, fluorine-doped photocurable hybrid coatings were prepared by combining UV-curing technology with an anhydrous sol-gel method. First, methacryloxymethyl triethoxysilane (MEMO) was hydrolyzed via an anhydrous sol-gel process. Then MEMO was mixed with acrylic oligomers and predetermined amounts of fluoroacrylate resin. UV curable hybrid coatings were applied on corona-treated plexiglass substrates. The addition of fluorine showed a significant impact on the properties of the coatings. As the fluorine content was increased in the formulations, flame retardancy and the contact angle values of the coatings increased. It was found that the optical transmittance of the coatings was higher than 95%. The surface morphology of the hybrid films was characterized by scanning electron microscopy (SEM). The chemical composition of the surface of the coatings was identified by energy dispersion spectrum (SEM-EDS) technique. SEM studies indicated that inorganic particles were dispersed homogenously throughout the organic matrix. J. VINYL ADDIT. TECHNOL., 21:272-277, 2015.

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“…The harder the surface of the coating, the higher is the time of damping. [58] According to the DSC and DMA results, the prepared thermoset materials have T g values below 20 °C. The pendulum test was performed at room temperature (≈20 °C) and thus the thermosets were not in the glassy state.…”

Section: Surface Hardness and Solvent Resistance Of The Thermosetsmentioning

confidence: 98%

Acetylene Dicarboxylic Acid Diallyl Ester: A Versatile Monomer for Thiol–Ene Photocured Networks

Dağlar

Çakmakçı

Gunay

et al. 2021

Macro Materials & Eng

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Thiol-ene photopolymerization (TEP) is a highly advantageous method for the curing of unsaturated monomers, and the design of novel monomers to be used in TEP is an active area of research. The feasibility and the versatility of novel acetylene dicarboxylic acid diallyl ester (ACDAE)-based monomers are synthesized and demonstrated. The electron deficient acetylenic core in ACDAE allows to apply three different click reactions, aza-Michael, thio-Michael, and metal-free azide-alkyne cycloaddition reactions, efficiently on it. Thus, three novel allylic monomers are synthesized and are used to prepare thiol-ene photopolymerized networks. All monomers are synthesized in good yields and structurally characterized by 1 H NMR and Fourier-transform infrared spectroscopy (FTIR) measurements. Thermal, thermomechanical, and mechanical properties, flame retardancy, transmittance, and the wettability of the networks are determined.

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Preparation of photocurable silica–titania hybrid coatings by an anhydrous sol–gel process

Cited by 17 publications

References 19 publications

Synthesis and Properties of MQ Copolymers: Current State of Knowledge

Synthesis and Properties of MQ Copolymers: Current State of Knowledge

Fluorine-containing photocurable hybrid coatings via anhydrous sol-gel method

Acetylene Dicarboxylic Acid Diallyl Ester: A Versatile Monomer for Thiol–Ene Photocured Networks

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