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Irgacure 907

Manufactured by Novartis
Sourced in United States, Switzerland

Irgacure 907 is a photoinitiator commonly used in the manufacturing of various products, including inks, coatings, and adhesives. It is a chemical compound that initiates the polymerization process when exposed to specific wavelengths of light, enabling the curing or hardening of these materials.

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4 protocols using irgacure 907

1

Synthesis and Characterization of Polymeric Electrolytes

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1-Bromobutane (Alfa Aesar, Tewksbury, MA, USA), 1,4-dibromobutane (Alfa Aesar, Tewksbury, MA, USA), 1-vinylimidazole (Alfa Aesar, Tewksbury, MA, USA), 1-methylimidazole (Alfa Aesar, Tewksbury, MA, USA), lithium bis(trifluoromethane sulfonamide) (LiTFSI, Acros, Geel, Belgium), photoinitiators: diphenyl (2,4,6-trimethylbenzoyl)-phosphine oxide (TPO, Aldrich, Milwaukee, WI, USA), 1-hydroxy-cyclohexyl-phenyl-ketone (Irgacure 184, Ciba, Tarrytown, NY, USA), 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone (Irgacure 907, Ciba, Tarrytown, NY, USA), poly(vinylidene fluoride) (PVDF, Solf®PVDF 6020, Solvay, Bruxelles, Belgium), 1-methyl-2-pyrrolidone (NMP, Riedel-de Haën, Seelze, Germany), carbon nanoparticles (CNP, ~15 nm, UniRegion Bio-Tech, Taoyuan, Taiwan), and activated carbon (AC, ACS-2930, China steel chem. Co., Kaohsiung, Taiwan) were used as received.
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2

Photopolymerized Thin Films on Glass

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For photopolymerization, 7% (with respect to solid content) photoinitiator of Irgacure 907 (Ciba) was added to the sol or the mixture of the sol and OPPEA (control the ratio of sol/OPPEA = 4 wt %). Then the above solutions were spin-coated on the glass substrate with an area of 2.5 × 2.5 cm2 at 2000 rpm for 60 s. The film was exposed in a MJB3mask aligner with a UV 400 filter for 10 min. The power level was 8 mW/cm2 measured at 365 nm.
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3

Synthesis of Quantum Dot Composites

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Cadmium oxide (CdO), tri-n-octylphosphine (TOP, purity >97%), and 3-(trimethoxysilyl)propyl
methacrylate were purchased from Sigma-Aldrich. Octadecene (ODE, Acros),
oleic acid (OA, Showa), selenium (Se, Alfa Aesar), zinc acetate (Riedel-de
Haën), and sulfur (purity >99%, Riedel-de Haën) were
of reagent grade. Analytic-grade solvents of toluene and ethanol were
purchased from Echo. A sample of commercially available acrylic acrylate
oligomer (trade mark, B2) was kindly provided by Hopax Company in
Taiwan to prepare the QD composites. Diphenyl(2,4,6-trimethylbenzoyl)-phosphine
oxide (TPO, Darocur), 1-hydroxy-cyclohexyl-phenyl-ketone (Irgacure
184, Ciba), and 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone
(Irgacure 907, Ciba) were used as photoinitiators. All chemicals were
used as received without further purification.
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4

UV-Cured Self-Healing Polymer Coating

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Example 41

Polymer XI (2.5 g) and UPy6 (1.5 g) were dissolved in hydroxyethyl acrylate (HEA, 10 g) together with tetraethyleneglycol diacrylate (TEGDA, 1.0 g), Irgacure 907™ (150 mg, obtained from Ciba, Switzerland) at 80° C. Then a 100 μm film was mechanically drawn on a glass substrate and UV-cured under a nitrogen atmosphere with a Fusion F600 D-bulb (I0=5 W/cm2) with a belt speed of 10.4 m/min, equivalent to a radiation time of 0.3 s. A clear coating was obtained with good mechanical properties.

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