Structural Preferences and Vibrational Analysis of 2-Hydroxy-2-methyl-1-phenylpropan-1-one: A Computational and Infrared Spectroscopic Research

Belaidi, Ottman; Bouchaour, Tewfik; Maschke, Ulrich

doi:10.1155/2013/942302

Cited by 12 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FTIR spectrum of 2-hydroxy-2-methylpropiophenone (PI) in its undissociated form (i.e., before irradiation) has a strong band centered around 1680 cm −1 [ 37 ]; indeed, this band appeared in the spectrum of the non-irradiated CM + PI formulation, as shown in Figure 3 b, in the 1690–1660 cm −1 region (enlarged in the inset in Figure 3 ).…”

Section: Resultsmentioning

confidence: 99%

Biobased Composites by Photoinduced Polymerization of Cardanol Methacrylate with Microfibrillated Cellulose

Vitale

Molina‐Gutiérrez

et al. 2022

Materials

View full text Add to dashboard Cite

Biobased monomers and green processes are key to producing sustainable materials. Cardanol, an aromatic compound obtained from cashew nut shells, may be conveniently functionalized, e.g., with epoxy or (meth)acrylate groups, to replace petroleum-based monomers. Photoinduced polymerization is recognized as a sustainable process, less energy intensive than thermal curing; however, cardanol-based UV-cured polymers have relatively low thermomechanical properties, making them mostly suitable as reactive diluents or in non-structural applications such as coatings. It is therefore convenient to combine them with biobased reinforcements, such as microfibrillated cellulose (MFC), to obtain composites with good mechanical properties. In this work a cardanol-based methacrylate monomer was photopolymerized in the presence of MFC to yield self-standing, flexible, and relatively transparent films with high thermal stability. The polymerization process was completed within few minutes even in the presence of filler, and the cellulosic filler was not affected by the photopolymerization process.

show abstract

Section: Resultsmentioning

confidence: 99%

Biobased Composites by Photoinduced Polymerization of Cardanol Methacrylate with Microfibrillated Cellulose

Vitale

Molina‐Gutiérrez

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…The SBA-15-MB composite material still has the prominent characteristic peaks of SBA-15. The characteristic peaks of methylene blue appear in the wavenumber 675-900 cm -1 is assigned to the outof-plane C-H bending vibration of on the benzene ring [22], 1,382 cm -1 is given to the symmetric deformation vibration of methyl group, 1,557 cm -1 is attributed to the vibration peak of the benzene ring in methylene blue [23], The peak at 1480 cm -1 is attributed to 𝐶 𝐶 stretching vibration. Finally, the peak at 2400 is due to adsorbed MB in SBA-15 [24].…”

Section: Ftirmentioning

confidence: 99%

SBA-15 Loaded with Methylene Blue Dye for Efficient and Low-Cost Decontamination of Water under Visible Led Light

Chawraba,

Medlej,

Hamieh

et al. 2024

Preprint

View full text Add to dashboard Cite

The SBA-15 loaded with methylene blue was successfully prepared by sample adsorption of methylene blue in SBA-15 and is characterized by an XRD, SEM, FTIR, and BET. The photocatalytic activity for methyl orange (MO) degradation was investigated under visible light irradiation under LEDs. Experimental results demonstrate that the SBA-15-MB exhibited higher photocatalytic activity than SBA-15 under visible light irradiation. The degradation efficiency of MO (50 ppm) by SBA-15-MB could reach 80% within 180 min under 25W LED visible light. The photocatalytic activity of SBA-15 could be attributed to the excitation of methylene blue by visible light, the transfer of electrons from methylene blue to SBA-15, and the production of radicals at the surface of SBA-15.

show abstract

“…During the UV curing process at industrial scale in this field of application, radical photoinitiators are generally applied in excess in order to favour their reactivity, usually at concentrations ranging from 2 to 10% (by weight of the total photocurable formulation). Within the large group of known photoinitiators structures,hydroxyalkylphenones have gained much interest due to their high reactivity, thermal stability and universal applicability (Seidl et al 2006;Kaczmarek and Vukovic-Kwiatkowsk 2012;Belaidi et al 2013). Darocur 1173…”

Section: Introductionmentioning

confidence: 99%

Monitoring of abiotic degradation of photocrosslinked silicone acrylate coatings: the fate of the photoinitiator

Ouali¹,

Germain²,

Gourdon³

et al. 2019

Environ Sci Pollut Res

View full text Add to dashboard Cite

Photocrosslinked silicone acrylates are used in a variety of applications, such as printing inks adhesives or adhesive release liners. Their production requires the use of a photoinitiator. Even if the photoinitiator represents a minor mass in the photocurable formulation (2 to 10%), it is used in excess and residual amounts may therefore remain in the polymerized products and possibly migrate into the environment during the use of the products and/or at their end-of-life stage. Little is known on the possible degradation of silicone acrylate which may increase the potential release. The present study investigated the release of Darocur 1173, the most commonly used photoinitiator, from silicone matrix and the effect of accelerated photoageing on the extent of the phenomenon. Leaching tests in water were conducted on thin coated plastic film (release liners) made of a mixture of polypropylene and polyethylene. Results showed that 44% of Darocur 1173 photoinitiator initially used in silicone formulation was released from silicone matrix in the leaching test. Accelerated photoageing obtained by UV irradiation of the films for up to 200 h was found to favor photoinitiator degradation but also induced a strong and fast oxidation of silicone coated liners as compared to uncoated ones.

show abstract

Structural Preferences and Vibrational Analysis of 2-Hydroxy-2-methyl-1-phenylpropan-1-one: A Computational and Infrared Spectroscopic Research

Cited by 12 publications

References 27 publications

Biobased Composites by Photoinduced Polymerization of Cardanol Methacrylate with Microfibrillated Cellulose

Biobased Composites by Photoinduced Polymerization of Cardanol Methacrylate with Microfibrillated Cellulose

SBA-15 Loaded with Methylene Blue Dye for Efficient and Low-Cost Decontamination of Water under Visible Led Light

Monitoring of abiotic degradation of photocrosslinked silicone acrylate coatings: the fate of the photoinitiator

Contact Info

Product

Resources

About