Enhanced protective performance of waterborne, microcontainers-doped coatings in harsh environments

Stojanović, Ivan; Židov, Bruno; Travkova, Oksana G.; Grigoriev, D. O.

doi:10.1016/j.porgcoat.2021.106273

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Taking into account the results of the study of the kinetics of photopolymerization of di(meth)acrylates in the presence of dissolved PI, the viscosity of the solutions and the properties of some cured polymer networks, the compositions TTEGDA with 15 wt.% FCPI and BDAA with 23 wt.% FCPI were selected for the formation of primary protective coatings of silica optical fibers. The excellent adhesion of acrylate-based coatings to various substrates was an additional argument [22]. The solution of 15 wt.% FCPI in BDDA is characterized by a low viscosity (0.4 Pa•s) which leads to the formation of a defective coating on the fiber.…”

Section: Formation and Thermal Stability Of New Photo-curable Coating...mentioning

confidence: 99%

“…Photocurable coatings are used, among other things, in the manufacture of various electronic and medical devices, optical fibers, etc. [22][23][24]. Most of the curable compositions contain multifunctional (meth)acrylates -di-and tri(meth)acrylates.…”

Section: Introductionmentioning

confidence: 99%

“…Such compounds, unlike non-functional unsaturated monomers, do not require thermal post-curing [25], which is a favorable feature. Polyurethane/polysiloxane/polyether acrylates [22,26] or expensive fluoroacrylates [22] are used to achieve high thermal stability of photo-cured silica optical fiber coatings. The use of such initial systems has its own peculiarities and limitations, including synthetic ones.…”

Section: Introductionmentioning

confidence: 99%

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Soluble Fluorinated Cardo Copolyimide as an Effective Additive to Photopolymerizable Compositions Based on Di(meth)acrylates: Application for Highly Thermostable Primary Protective Coating of Silica Optical Fiber

Sapozhnikov,

Melnik,

Chuchalov

et al. 2024

Preprint

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The development of photocurable compositions is in high demand for the manufacture of func-tional materials for electronics, optics, medicine, energy, etc. The properties of the final pho-to-cured material are primarily determined by the initial mixture, which needs to be tuned for each application. In this study we propose to use simple systems based on di(meth)acrylate, polyimide and photoinitiator for the preparation of new photo-curable compositions. It was es-tablished that a fluorinated cardo copolymide (FCPI) based on 2,2-bis-(3,4-dicarboxydiphenyl)hexafluoropropane dianhydride, 9,9-bis-(4-aminophenyl)fluorene and 2,2-bis-(4-aminophenyl)hexafluoropropane (1.00:0.75:0.25 mol) has excellent solubility in di(met)acrylates. This made it possible to prepare solutions of FCPI in such monomers, to study the effect of FCPI on the kinetics of their photopolymerization in situ and the properties of the resulting polymers. According to the obtained data, the solutions of FCPI (23 wt.%) in 1,4-butanediol diacrylate (BDDA) and FCPI (15 wt.%) in tetraethylene glycol diacrylate were tested for the formation of the primary protective coatings of the silica optical fibers. It was found that the new coating of poly(BDDA–FCPI23%) can withstand prolonged annealing at 200°C (72 h), which is comparable or superior to the known most thermally stable photo-curable coatings. The proposed approach can be applied to obtain other functional materials.

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Section: Formation and Thermal Stability Of New Photo-curable Coating...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%