Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide

Bezeichnung:Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide

CAS-Nr162881-26-7

Englisch Name:Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide

CBNumberCB1126312

SummenformelC26H27O3P

Molgewicht418.47

MOL-Datei162881-26-7.mol

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide physikalisch-chemischer Eigenschaften

Schmelzpunkt	131-135 °C(lit.)
Siedepunkt	590.0±60.0 °C(Predicted)
Dichte	1.17±0.1 g/cm3(Predicted)
Dampfdruck	0Pa at 20℃
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	acetone, acetonitrile, toluene, and hexanedioldiacrylate: soluble
Aggregatzustand	powder
Farbe	Pale Yellow to Yellow
Wasserlöslichkeit	100μg/L at 20-21℃
maximale Wellenlänge (λmax)	366nm(MeOH)(lit.)
InChI	InChI=1S/C26H27O3P/c1-16-12-18(3)23(19(4)13-16)25(27)30(29,22-10-8-7-9-11-22)26(28)24-20(5)14-17(2)15-21(24)6/h7-15H,1-6H3
InChIKey	GUCYFKSBFREPBC-UHFFFAOYSA-N
SMILES	P(C1C=CC=CC=1)(=O)(C(C1C(=CC(C)=CC=1C)C)=O)C(C1C(=CC(C)=CC=1C)C)=O
LogP	5.77-5.8 at 22℃
CAS Datenbank	162881-26-7
EPA chemische Informationen	Phosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)- (162881-26-7)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	43-53
S-Sätze:	22-24-37-61
WGK Germany	-
HS Code	29319090

Gefahreninformationscode (GHS)

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R43:Sensibilisierung durch Hautkontakt möglich.
R53:Kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24:Berührung mit der Haut vermeiden.
S37:Geeignete Schutzhandschuhe tragen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Beschreibung
Phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide can be used as a photoinitiator for: Radical polymerization of dental resins. It enhances the polymerization rate and conversion compared to other initiators. It is a polymer-based ceramic material modified with divinylbenzene for the preparation of high-temperature sensor applications.
Verwenden
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide is a useful research chemical compound.
Verwenden
Versatile UV photoinitiator for radical polymerization of unsaturated resins, especially pigmented formulations.
synthetische
Under nitrogen protection and room temperature, 1.4 g of zinc powder was added to the 100 mL reaction flask with stirring.15 ml of ethyl acetate, 4.1 g of 2,4,6-trimethyl benzoyl chloride, and a solution of 2.5 g of phenylphosphorus dichloride in 5 ml of ethyl acetate was added dropwise to the mixture. After that, the temperature was continued for 2 hours. After the completion of the reaction, 20 mL of water and 1.5 mL of 30% hydrogen peroxide were respectively added to the system, and the reaction was continued for half an hour. Saturated sodium bicarbonate solution was added to neutralize weakly alkaline. Finally, Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide was obtained after purification.
Definition
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (PPO) has a local absorption maximum in the visible spectrum at 405 nm and could provide sufficient initiating radicals to crosslink polyamic diacrylate ester in NMP[1]. Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (GR-XBPO) could be used as the reductant, and Monoethanolamine as the oxygen inhibition agent. After UV irradiation, oxygen-containing groups (OCGs) on the graphene oxide (GO) plane and edges are largely removed due to the reduction of GO by free radicals generated by photoinitiator decomposition[2].
Einzelnachweise
[1] Maruti Hegde. “3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable.” Advanced Materials 29 31 (2017).
[2] Bing Xue, Yuchun Yang, Yingquan Zou. “A UV-light induced photochemical method for graphene oxide reduction.” Journal of Materials Science 52 21 (2017): 12742–12750.
Application
Photoinitiator 819 (HRcure-819) can also be used in colored UV-curable plastic coatings. UV coatings have been widely used on plastic shells of various electronic and household appliances due to their excellent performance and efficient production. However, the deep curing of UV coatings after coloring is not good, resulting in poor film adhesion and poor dispersion and arrangement of pigments by UV resins, which seriously affect the appearance of the coatings. Therefore, the traditional construction process is to paint solvent-based colored primer first; after baking, apply UV varnish to improve the physical properties of the film surface.

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