Synthesis and Characterization of a Trifunctional Photoinitiator Based on Two Commercial Photoinitiators with α-Hydroxyl Ketone Structure

Zhong, Rong; Hu, Hui; Zhou, Yanfang

doi:10.3390/ma14185272

Cited by 9 publications

(4 citation statements)

References 33 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When commercial photoinitiators were co-initiated with PyBF, the resistance to shrinkage [29,34] and migration of cured polymers were found to be improved [12,33,53]. Figure 8 (a)-(c) are surface morphology images of the cured materials of PyBF(0.5 wt%)/PEGDA, TPO(1 wt%)/PEGDA and PyBF(0.5 wt%)/TPO(1 wt%)/PEGDA observed by scanning electron microscope (SEM), respectively.…”

Section: Photopolymerizations Incorporation With Commercial Tpomentioning

confidence: 99%

A pyrrolo[3,2-b]pyrrole derivative used for one- and two-component radical photoinitiators for photopolymerization under 405 nm

Liu,

Xu,

Liu

et al. 2023

Preprint

View full text Add to dashboard Cite

The new design is generally based on the improvement of existing commercial photoinitiators as well as the introduction of new building blocks aimed at improving the properties of polymerized materials. A photoinitiator named 1,4-bis(4-bromophenyl)-2,5-bis(4-(trifluoromethyl)phenyl)-1,4-dihydropyrrolo[3,2-b]pyrrole (PyBF) with a symmetric trifluoromethyl (-CF3) end groups was synthesized through a one-step aldehyde–ketone condensation reaction. The -CF3 groups are introduced on the 2,5-position phenyl rings of the pyrrolo[3,2-b]pyrrole core, and PyBF shows visible light photoinitiation ability that matching with light-emitting diode (LED) of 405 nm. Both acrylate prepolymer and monomer have been applied to our photopolymerization formulas using PyBF as one-component photoinitiator. The thermal stability of PyBF is compared with commercial photointiator (diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, TPO) with a comparable thermal decomposition temperature (Td) temperature above 300 oC. The SEM results show that the cured materials of PyBF/TPO/PEGDA mixture using PyBF/TPO as two-component photoinitiator system have smooth surface, instead of PyBF/PEGDA and TPO/PEGDA systems. Therefore, both the potential pyrrole-based one- and two-component photoinitiator for rational design is worth expected for visible light photopolymerization.

show abstract

Section: Photopolymerizations Incorporation With Commercial Tpomentioning

confidence: 99%

A pyrrolo[3,2-b]pyrrole derivative used for one- and two-component radical photoinitiators for photopolymerization under 405 nm

Liu,

Xu,

Liu

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…[ 13 ] Note that the above coatings still lack anti‐biofouling ability and the photocatalytic cross‐linking reaction needs complex UV irradiation and limits the thickness, which in turn limits the application fields of the coatings. [ 14 ] Recently, our group reported a hybrid antifouling coating consisting of an epoxy‐zirconium particle and an amine‐terminated hyperbranched polysiloxane. [ 15 ] Besides superior mechanical properties, the coating simultaneously provides oil repellency and anti‐microbial abilities, which are attributed to the zwitterionic silanes.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Hard Yet Flexible Coatings Fabricated Using a Universal Step‐by‐Step Strategy

et al. 2022

View full text Add to dashboard Cite

Hard yet flexible coatings with multi‐functionalities are useful for foldable displays and marine industries but rare. In this study, a highly cross‐linked multifunctional hybrid coating with ceramic‐like hardness and polymer‐like flexibility is reported. The coating is prepared via a step‐by‐step strategy, where two types of epoxy‐oligosiloxane nanoclusters are first synthesized by sol‐gel chemistry, and amine‐terminated curing agents are used to cross‐link them at room temperature. The coating is highly transparent (>92% transmittance), hard (6‐7H), and flexible (10 mm bending diameter) because of the unique combination of siloxane nanoclusters and polymer networks. Meanwhile, since the coating contains fouling‐resistant telomer and low‐surface‐tension liquid lubricant polydimethylsiloxane (PDMS), it exhibits excellent anti‐biofouling and self‐cleaning properties. The results indicate that the mechanical and antifouling properties of the coating can be easily tuned and prove that the step‐by‐step strategy is a promising and universal method. The novel coatings can meet the needs of applications in foldable displays, marine industries, and other fields.

show abstract

“…In our previous study, we synthesized tri- and tetra-functionalized photoinitiators with larger moleculer weights that improve their initiating activities and decrease their migration after UV irradiation. 15,16…”

mentioning

confidence: 99%

“…14 In our previous study, we synthesized tri-and tetra-functionalized photoinitiators with larger moleculer weights that improve their initiating activities and decrease their migration after UV irradiation. 15,16 For UV-curable systems, many bio-based materials has been used as subsititutes for mineral resources, [17][18][19][20] Itaconic acid, as a renewable chemical, is obtained from natural source such as carbohydrates, molasses and hydrolysed starch, or through a fermentation process. 21,22 Because itaconic acid contains a polymerizable vinylidene group, 23 it is expected that itaconic-acid-modified photoinitiators will possess the properties of polymerizability and low migration.…”

mentioning

confidence: 99%

A polymerizable difunctional photoinitiator featuring a bio-based group and its photoinitiating properties

Zhou

Zhong

Wang

2022

Journal of Chemical Research

Self Cite

View full text Add to dashboard Cite

A polymerizable difunctional photoinitiator 2-methylene-succinic acid bis-{2-[4-(2-hydroxy-2-methylpropionyl)phenoxy]ethyl} ester (IAHHMP) based on the commercial photoinitiator 2-hydroxy-1-[4-(2-hydroxyethoxy)phenyl]-2-methylpropanone (HHMP) and a biorenewable itaconic acid is synthesized by esterification. The structure is confirmed by ultraviolet spectroscopy, Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy (1H NMR, 13C NMR) and thermogravimetric analysis. The photopolymerization behaviour of the photoinitiator is investigated using photo-differential scanning calorimetry and compared with that of two commercial photoinitiators, HHMP (or photoinitiator 2959) and 1-hydroxycyclohexyl phenyl ketone (or photoinitiator 184). The results show that IAHHMP has a strong UV absorption capacity at 245~300 nm and can initiate polymerization of monomers containing a double bond. The relative migration of IAHHMP is less than that of the systems containing an HHMP or 1-hydroxycyclohexyl phenyl ketone photoinitiator. Therefore, IAHHMP is expected to have potential applications in more environmentally friendly materials, such as in food and medical packaging.

show abstract

Synthesis and Characterization of a Trifunctional Photoinitiator Based on Two Commercial Photoinitiators with α-Hydroxyl Ketone Structure

Cited by 9 publications

References 33 publications

A pyrrolo[3,2-b]pyrrole derivative used for one- and two-component radical photoinitiators for photopolymerization under 405 nm

A pyrrolo[3,2-b]pyrrole derivative used for one- and two-component radical photoinitiators for photopolymerization under 405 nm

Multifunctional Hard Yet Flexible Coatings Fabricated Using a Universal Step‐by‐Step Strategy

A polymerizable difunctional photoinitiator featuring a bio-based group and its photoinitiating properties

Contact Info

Product

Resources

About