71868-10-5 Usage
Description
2-Methyl-4'-(methylthio)-2-morpholinopropiophenone is a white powder chemical compound known for its photoinitiating properties. It is characterized by its ability to efficiently initiate the curing process in UV-curable systems, making it a valuable component in the formulation of various materials.
Uses
Used in UV-curable Coatings and Inks:
2-Methyl-4'-(methylthio)-2-morpholinopropiophenone is used as a highly efficient photoinitiator in the application of UV-curable coatings and inks. Its role is to facilitate the curing process, ensuring a quick and effective transition from liquid to solid form upon exposure to ultraviolet light. This property makes it particularly useful in the manufacturing of coatings and inks that require rapid drying and curing times.
Used in UV Curing Systems:
In the UV curing systems industry, 2-Methyl-4'-(methylthio)-2-morpholinopropiophenone is utilized as a photoinitiator to enhance the curing process. Its high efficiency in initiating the curing reaction allows for extended storage without the occurrence of yellowing, which is a common issue in UV-curable materials. This characteristic is highly desirable, as it ensures the maintenance of the material's appearance and performance over time.
Application fields
2-Methyl-4'-(Methylthio)-2-Morpholinopropiophenone is an efficient UV photoinitiator for initiating UV polymerization of unsaturated prepolymer systems, Such as acrylic resins and monofunctional and multifunctional vinyl monomers. The initiator molecule has a certain light absorption capacity in the ultraviolet region (250-400 nm) or the visible region (400-800 nm). After direct or indirect absorption of light energy, the initiator molecules transition from the ground state to the excited singlet state, through intersystem conversion to excited triple state. After undergoing a single molecular or bimolecular chemistry, initiator molecules produce reactive debris that initiates polymerization of the monomers, which may be free radicals, cations, anions, etc. According to the different initiation mechanism, the photoinitiator can be divided into free radical polymerization photoinitiator and cationic photoinitiator, among which the most widely used is free radical polymerization photoinitiator. The characteristic of high absorbency of 2-Methyl-4'-(Methylthio)-2-Morpholinopropiophenone makes it particularly suitable for UV curable inks and colored coatings. UV inks contain a greater amount of photoinitiator, and it is these photoinitiators that promote the rapid drying of the ink during the printing process. These photoinitiators themselves are not stable, even in the dark, and it is also prone to dark reaction, resulting in one by one ink glue nucleus, followed by a large area of retrogradation. Especially in the preservation of metal ink, similar situation occur more often. Therefore, it is recommended that the ink pigment and the binder separately stored. If used, stir and mix the two with a large machine.
Highly efficient photoinitiator can be used in UV curing systems to extend storage with non-yellowing for a long time. It is an initiator specifically for pigmented UV-curable coatings, inks and adhesives colored solidification system, and it could be used with184, ITX and other initiators. It can be used for colored ink systems, paper/metal and plastic varnish and electronic inks. It is also as a UV absorber for cosmetics and other industries with suggested supplementation of 2-6%.
Flammability and Explosibility
Nonflammable
Check Digit Verification of cas no
The CAS Registry Mumber 71868-10-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,6 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71868-10:
(7*7)+(6*1)+(5*8)+(4*6)+(3*8)+(2*1)+(1*0)=145
145 % 10 = 5
So 71868-10-5 is a valid CAS Registry Number.
71868-10-5Relevant articles and documents
Nickel-Catalyzed Reversible Functional Group Metathesis between Aryl Nitriles and Aryl Thioethers
Delcaillau, Tristan,Boehm, Philip,Morandi, Bill
supporting information, p. 3723 - 3728 (2021/04/07)
We describe a new functional group metathesis between aryl nitriles and aryl thioethers. The catalytic system nickel/dcype is essential to achieve this fully reversible transformation in good to excellent yields. Furthermore, the cyanide- and thiol-free reaction shows high functional group tolerance and great efficiency for the late-stage derivatization of commercial molecules. Finally, synthetic applications demonstrate its versatility and utility in multistep synthesis.
Synthetic method of free-radical photoinitiator
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Paragraph 0086; 0091; 0092; 0093, (2018/07/30)
The invention discloses a synthetic method of a free-radical photoinitiator. The synthetic method is characterized by comprising the following steps: (1) under the action of aluminium trichloride, methyl phenyl sulfide is adopted as a raw material and generates Friedel-Crafts acylation reaction with 2-chloroisobutyryl chloride to prepare an intermediate A with a structure shown in a formula (I); (2) under the action of alkaline, the intermediate A carries out ring-closure reaction to prepare an intermediate B with a structure shown in a formula (II); (3) the intermediate B and morpholine carryout ring-opening reaction to obtain a target product with a structure shown in a formula (III), namely the free-radical photoinitiator. The synthetic method disclosed by the invention has the beneficial effects that the photoinitiator is synthesized by the steps of adopting the 2-chloroisobutyryl chloride and methyl phenyl sulfide to carry out Friedel-Crafts acylation reaction, then carrying outcyclization and ring opening and the like, the obtained product contains fewer impurities, the yield is high, the process route is convenient in operation, and generates less three wastes (waste water, waste solid and waste air) so as to be more environment-friendly.
PROCESS FOR THE PREPARATION OF ALPHA-FUNCTIONALIZED KETONES
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Page/Page column 49; 50; 51; 52, (2018/11/22)
The present invention refers to a process for the preparation of an α-functionalized ketone, an α-functionalized ketone obtained by said process, a photopolymerizable composition comprising the α-functionalized ketone and at least one photopolymerizable unsaturated compound, a method of preparing an article, an article obtained by said method, as well as the use of the α-functionalized ketone or the photopolymerizable composition as photoinitiator.