Synthesis of ultraviolet curable <scp>bisphenol‐based</scp> epoxy acrylates and comparative study on its <scp>physico‐chemical</scp> properties

Desai, Prashil; Jagtap, R. N.

doi:10.1002/app.52022

Cited by 11 publications

(23 citation statements)

References 30 publications

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“…(A) Schematic structure of the epoxy diacrylate resin (bisphenol A epoxy diacrylate ebecryl 3720‐TP25), presenting acrylate group, the Bisphenol A and acrylate group, respectively, 48 and (B) structure of the bis(2,4,6‐trimethylbenzoyl)phenylphosphine oxide 49 . An example of the molecular structure of a bisphenol based epoxy acrylate can be found elsewhere 50 …”

Section: Methodsmentioning

confidence: 99%

“…Heat is released (exothermal reactions) during the polymerization steps. An example of free radical polymerization mechanism of bisphenol‐based epoxy acrylate can be found elsewhere 50 …”

Section: Methodsmentioning

confidence: 99%

“…To characterize the epoxy diacrylate system and to monitor its photocure, a conventional photoacoustic cell (PA cell), shown in F I G U R E 1 (A) Schematic structure of the epoxy diacrylate resin (bisphenol A epoxy diacrylate ebecryl 3720-TP25), presenting acrylate group, the Bisphenol A and acrylate group, respectively, 48 and (B) structure of the bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide. 49 An example of the molecular structure of a bisphenol based epoxy acrylate can be found elsewhere 50 As can be seen in Figure 3, above of the sample there is a sealed chamber with a microphone attached to one of its walls. Photons, from a modulated light source, that are transmitted from the optical window, are absorbed by the sample.…”

Section: Methodsmentioning

confidence: 99%

“…Neutral-density filters (Newport/Oriel model 50,430) were used between the non-modulated light source and the epoxy diacrylate system, to decrease the given intensity. For each monitoring, a new sample was used.…”

Section: Methodsmentioning

confidence: 99%

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Photoacoustic spectroscopy applied in the monitoring of photocuring process in epoxy diacrylate resins: Positive effect

Borges

Moraes

Neto

et al. 2022

Polymers for Advanced Techs

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The main goal of this study is to show that photoacoustic spectroscopy (PAS) can be applied in the monitoring of photocuring processes in epoxy diacrylate resins. The resin used was EBECRYL 3720‐TP25 with the photoinitiator Omnirad 808. Comparison between the conventional transmission and absorption photoacoustic spectra of the resin is presented. Amplitude and phase of the photoacoustic signal were used to monitor the photocuring. The wavelength of the modulated photocuring light and the concentration of the photoinitiator were the parameters varied in the monitoring. The novelty was found when the resin was irradiated by a continuous light, centered at the absorption peak of the photoinitiator and simultaneously with the modulated light. In the time window when this continuous light was on (off) the amplitude of the photoacoustic signal increased (decreased). This is called “positive effect,” as it has been observed when PAS was applied to study photosynthesis in leaves. A mechanism is proposed to correlate the positive effect with the oxygen inhibition effect during the photocuring of the epoxy diacrylate resin. The results suggest that the amplitude of the photoacoustic signal and the positive effect can be used as monitoring parameters in the studies of photocuring process in epoxy diacrylate resins.

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Section: Methodsmentioning

confidence: 99%

“…Heat is released (exothermal reactions) during the polymerization steps. An example of free radical polymerization mechanism of bisphenol‐based epoxy acrylate can be found elsewhere 50 …”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Photoacoustic spectroscopy applied in the monitoring of photocuring process in epoxy diacrylate resins: Positive effect

Borges

Moraes

Neto

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…Moreover, it can also be transformed into the ether, esters, and salts like other phenols. Additionally, the electrophilic substitution of BPA generally includes sulphonation, alkylation, and nitration ( 20 , 22 ).…”

Section: Introductionmentioning

confidence: 99%

An insight into bisphenol A, food exposure and its adverse effects on health: A review

et al. 2022

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Bisphenol A (BPA) is a synthetic chemical widely employed to synthesize epoxy resins, polymer materials, and polycarbonate plastics. BPA is abundant in the environment, i.e., in food containers, water bottles, thermal papers, toys, medical devices, etc., and is incorporated into soil/water through leaching. Being a potent endocrine disrupter, and has the potential to alter several body mechanisms. Studies confirmed its anti-androgen action and estrogen-like effects, which impart many negative health impacts, especially on the immune system, neuroendocrine process, and reproductive mechanism. Moreover, it can also induce mutagenesis and carcinogenesis, as per recent scientific research. This review focuses on BPA’s presence and concentrations in different environments, food sources and the basic mechanisms of BPA-induced toxicity and health disruptions. It is a unique review of its type because it focuses on the association of cancer, hormonal disruption, immunosuppression, and infertility with BPA. These issues are widespread today, and BPA significantly contributes to their incidence because of its wide usage in daily life utensils and other accessories. The review also discusses researched-based measures to cope with the toxic chemical.

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Effect of functionality of diluents on digital light processing (DLP) based three‐dimensional (3D) printing of UV‐curable bisphenol A‐based epoxy acrylate resin

Rade,

Swami,

Pawane

et al. 2024

Polymer Engineering & Sci

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Digital light processing (DLP) based three‐dimensional (3D) printing technology which uses photocurable resin has been a center of interest due to its printing accuracy and printing speed. In our research, we have synthesized and modified the bisphenol A‐based epoxy acrylate resin for the DLP 3D printer having a printing accuracy of 50 μm. As the viscosity plays an important role in printing accuracy, the resin was modified with mono‐functional, di‐functional, tri‐functional, and combination of di‐tri functional acrylate diluents as well as with photoinitiator to achieve the desired level of viscosity. The process parameters like curing time and intensity were optimized using the DLP 3D printer. The uncured and UV‐cured samples were characterized using FTIR‐ATR, 1HNMR, UV–VISIBLE, and TGA techniques. The analysis of the uncured and UV‐cured samples was carried out using viscosity, gel content, water absorption, and chemical resistance test. The mechanical properties of the UV‐cured samples were determined using hardness and tensile strength test. The 3D‐printed samples were observed under high‐resolution microscope to confirm the printing quality and resolution. The resulting outcome confirmed that the proper selection of diluents is an important parameter for achieving the good quality and resolution of samples printed using the DLP 3D printer technology.Highlights Synthesis and modification of UV‐curable resin Selection of diluents for controlling the processablility of UV‐curable resin Optimization of process parameters for DLP based 3D printer 3D printing of samples having good quality, resolution and feature size.

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Synthesis of ultraviolet curable bisphenol‐based epoxy acrylates and comparative study on its physico‐chemical properties

Cited by 11 publications

References 30 publications

Photoacoustic spectroscopy applied in the monitoring of photocuring process in epoxy diacrylate resins: Positive effect

Photoacoustic spectroscopy applied in the monitoring of photocuring process in epoxy diacrylate resins: Positive effect

An insight into bisphenol A, food exposure and its adverse effects on health: A review

Effect of functionality of diluents on digital light processing (DLP) based three‐dimensional (3D) printing of UV‐curable bisphenol A‐based epoxy acrylate resin

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