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Silicon-containing macromolecule cationic photoinitiator and preparation method thereof

A cationic photoinitiator and photoinitiator technology, applied in the field of cationic photoinitiator, can solve the problems of easy volatilization, easy migration of decomposed fragments, system incompatibility and compatibility, etc.

Inactive Publication Date: 2016-11-23
BEIJING UNIV OF CHEM TECH
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  • Claims
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Problems solved by technology

(3) The silicon-containing macromolecular cationic photoinitiator solves the disadvantages of traditional small molecule photoinitiators such as easy volatilization, easy migration of decomposed fragments, and incompatibility or poor compatibility with the system

Method used

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  • Silicon-containing macromolecule cationic photoinitiator and preparation method thereof
  • Silicon-containing macromolecule cationic photoinitiator and preparation method thereof
  • Silicon-containing macromolecule cationic photoinitiator and preparation method thereof

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Embodiment Construction

[0055] In the following description of the present invention, unless otherwise explicitly stated, the numerical values ​​in the present application can be regarded as modified by the word "about". However, the inventors have reported the numerical values ​​in the examples as precisely as possible although some errors inevitably included.

[0056] In this application, unless expressly excluded, specific or preferred embodiments of the invention may be combined. In addition, each element of the embodiment of the present application is a specific preferred selection of the corresponding high-level technical features. If the overriding technical features can be combined with other overriding features, the elements of the embodiments, that is, the specific preferred options, can also be combined with the other overriding features. These combinations should be regarded as a part of the original content of this application.

[0057] resolve resolution

[0058] The synthesis route ...

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Abstract

The invention synthesizes a silicon-containing macromolecule cationic photoinitiator for gradient polymerization and a preparation method thereof. The method comprises the following steps that hexamethyl cyclotrisiloxane, dimethylchlorosilane and n-butyllithium are added into a reaction kettle to obtain a product 1; the product 1 and methyl methacrylate take a reaction to obtain a product 2; the product 2 and a 6M sodium hydroxide water solution take a reaction to obtain a product 3; a cationic photoinitiator 1187 and a catalyst are added into the product 3 for taking a reaction to obtain a product 4. The silicon-containing macromolecule cationic photoinitiator has the beneficial effects that (1) the synthesized photoinitiator has self floating capability, and forms gradient distribution in a photopolymerization system, and a gradient polymer is obtained after once photopolymerization; (2) the photoinitiator has good solubility in cationic resin or monomers, so that the addition of organic solvents in the photo-curing process is not needed; the photoinitiator can be used for preparing materials with little harm to environment and human bodies; (3) the photoinitiator cannot be easily volatilized; decomposition fragments cannot easily migrate; the compatibility with the system is good.

Description

technical field [0001] The invention relates to a cationic photoinitiator, specifically a silicon-containing macromolecular cationic photoinitiator, a synthesis method of the cationic photoinitiator and its application in cationic system gradient polymerization. Background technique [0002] Gradient polymer refers to a new type of material in which the elements (such as composition or structure) of the polymer change continuously from one side to the other in a certain direction, and the properties and functions of the material also change in a gradient. Molecular weight is a basic element of polymers, which has a great influence on the performance and processing properties of polymers. When the molecular weight of the polymer changes, the properties of the polymer such as mechanical properties (strength, etc.), optical properties (refractive index, etc.), thermal properties (glass transition temperature, etc.), electrical properties (electrical conductivity, etc.), process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/392C08G77/12C08G59/40
CPCC08G59/4085C08G77/12C08G77/392
Inventor 孙芳潘河
Owner BEIJING UNIV OF CHEM TECH
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