Low-toxicity flavonol sulfonate photoinitiator, visible light initiation system and application

A technology of flavonol sulfonate and photoinitiator, applied in organic chemistry and other directions, can solve the problems of low photocuring efficiency, few photoinitiators, and few photoinitiators, etc., and achieves simple molecular structure, strong light absorption ability, The effect of a long photosensitive band
CN114656579AInactive Publication Date: 2022-06-24安庆北化大科技园有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
安庆北化大科技园有限公司
Publication Date
2022-06-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a low-toxicity flavonol sulfonate photoinitiator which is structurally characterized in that the photoinitiator has a natural product flavonol skeleton structure, the structural general formula of the photoinitiator is shown in the specification, R1 is selected from one of triphenylamine, carbazole, phenothiazine, naphthalene, anthracene, pyrene and quinoline, and alkyl, connected with N, on carbazole or phenothiazine is selected from C1-C20 straight-chain alkyl or C1-C20 branched-chain alkyl; r2 is selected from one of methyl, trifluoromethyl, phenyl, 4-methyl phenyl and 4-trifluoromethyl phenyl. The photoinitiator not only can independently initiate free radical polymerization, but also can form two efficient photosensitive initiation systems with an amine compound or a diaryl iodonium salt compound to initiate free radical polymerization. The two photosensitive initiation systems have strong absorption in a visible light region, the synthesis method is simple, and a final cured product shows low toxicity and has application potential in the field of biology.
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Description

technical field

[0001] The invention belongs to the technical field of new material organic chemicals, and particularly relates to a low-toxicity flavonol sulfonate type photoinitiator and a visible light initiation system and application. Background technique

[0002] Light curing technology has been widely used in many industrial fields such as: food packaging, 3D printing, dental materials, biological tissues, adhesives, optical devices, electronic circuits, etc. In recent years, it has also been involved in emerging digital storage, three-dimensional precision machining and other fields. It is an environmentally friendly green technology due to its fast curing rate, less pollution, and excellent cured product performance. However, commercial photoinitiators have many weaknesses: ①Due to excessive addition, the photoinitiators cannot be completely consumed in photopolymerization, which may cause corresponding environmental pollution; ②The currently used commercial photoi...

Claims

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