A kind of eo/po modified 9-phenylacridine photosensitizer and its application
A technology of phenylacridines and photosensitizers, which is applied in the field of EO/PO modified 9-phenylacridine photosensitizers, can solve problems such as low solubility, reduced initiation efficiency, and affecting material properties, and achieve dispersion stability Excellent performance, reduced sludge amount, and excellent developability
Active Publication Date: 2022-06-07
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 the 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 the solvent containing 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., all of which are conventional processes in the field of organic chemistry. When the synthesis ...
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Abstract
The invention discloses an EO / PO modified 9-phenylacridine photosensitizer, which has a structure as shown in 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 developability, and has good hydrophilicity during development. Significantly reduce the amount of sludge in the developer when it is recycled, so that the developer can be reused many times and used effectively.
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 type 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 development waste have become a research hotspot, and as the key component 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 waste. [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, these existing acridine compounds have ...
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