EO/PO modified 9-phenylacridine photosensitizer and application thereof
A technology of phenylacridines and photosensitizers, applied in optics, optomechanical equipment, instruments, etc., can solve the problems of affecting the recycling of developer solution, reducing product precision, high sensitivity, dispersion stability, and low development waste.
Active Publication Date: 2021-05-25
CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS +1
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Problems solved by technology
[0004] 9-phenylacridine is one of the most widely used products in existing acridine photosensitizers, but the photosensitive resin composition using 9-phenylacridine as a photosensitizer has high sensitivity, The advantages of high resolution, high solubility, high dispersion stability and low development litter cannot be combined
During the use of 9-phenylacridine, there are often problems such as poor miscibility with the system, easy aggregation and precipitation, etc., resulting in reduced initiation efficiency and affecting material properties
In the dry film development stage, the unexposed part is usually washed away with alkaline aqueous solution, and 9-phenylacridine will be precipitated and adsorbed on the surface of the circuit board due to its extremely low solubility at this time, which not only affects the use of the dry film, but also It will also reduce the precision of the product, so it is necessary to increase the surface cleaning process of the circuit board in the follow-up, resulting in cumbersome process and greatly increased cost
[0005] Patent application CN107765510A discloses a 9-phenylacridine macromolecular photosensitizer, which solves the problems of solubility and developing garbage, but in practical application, it is found that more oil slicks will be generated during developing, which will affect the circulation of the developer use
Method used
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preparation example Construction
[0036] Correspondingly, the present invention also relates to a preparation method of the above-mentioned EO / PO modified 9-phenylacridine photosensitizer, comprising the following steps:
[0037] (1) raw material a and raw material b react under the action of a catalyst to obtain intermediate A;
[0038] (2) raw material c and raw material d are reacted in the solvent containing acid-binding agent to obtain intermediate B;
[0039] (3) intermediate A and intermediate B react in a solvent containing an acid-binding agent to obtain product C;
[0040] The reaction equation is as follows:
[0041]
[0042] The photosensitizer of the present invention is the improvement and optimization of the existing compound structure. As shown in the above reaction equation, the synthesis involved in the preparation method involves the construction of acridine structures, etherification, etc., which are conventional processes in the field of organic chemistry. When the synthesis process ...
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Abstract
The invention discloses an EO / PO modified 9-phenylacridine photosensitizer which has a structure as shown in a general formula (I). When the photosensitizer is applied to a photosensitive resin composition, the composition has the characteristics of high sensitivity, high resolution, high solubility, excellent dispersion stability and excellent developing property, has better hydrophilicity during developing, and can remarkably reduce the sludge amount in a developing solution during recycling, so that the developing solution can be repeatedly and effectively used for multiple times.
Description
technical field [0001] The invention belongs to the technical field of photocuring and organic chemistry, and in particular relates to an EO / PO modified 9-phenylacridine photosensitizer and an application thereof. Background technique [0002] With the miniaturization of printed circuit boards on precision electronic equipment, photosensitive resin compositions with high sensitivity, high resolution, high solubility and low developer waste have become research hotspots, and as key components of photosensitive resin compositions One, photosensitizers are required to have properties such as high sensitivity, high resolution, high solubility, excellent dispersion stability, and low development litter. [0003] Acridine compounds are a very important class of photosensitizers. For example, patent applications CN101525392A and CN102675203A disclose the application of different acridine compounds in photosensitive resins. However, when these acridine compounds are used as photose...
Claims
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IPC IPC(8): G03F7/031C07D219/02C07D219/04
CPCG03F7/031C07D219/02C07D219/04G03F7/027G03F7/033G03F7/0045
Inventor 钱晓春戚伟光衡京
Owner CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS