Active etherification of pyrogallol acetonide resin and its synthesis method

Abstract

The invention discloses an active etherified product of pyrogallol acetonide resin and a synthesis method thereof, which belong to the technical field of photothermal functional new materials for imaging information recording materials. The active ether compound is synthesized by pyrogallol acetone resin, etherification reagent and catalyst, and the etherification rate can be controlled at 30-100%. The active etherified compound of pyrogallol acetonide resin synthesized by the present invention has very high photosensitivity, and can be used for traditional PS plates, heat-sensitive CTP plates, photoresists, electron beam resists or chemically amplified resists, etc. aspect. Compared with the prior art, the present invention does not require pre-esterification, but the pyrogallol acetone resin is directly etherified under the action of a catalyst, and the etherification rate is high, the comprehensive performance is better, the product is solid, and the stability is good , Easy to save.

Description

technical field [0001] The invention belongs to the field of photothermal functional new materials for imaging information recording materials, and particularly relates to a photothermal information recording material with high acidolysis activity and a synthesis method thereof, that is, active etherification of pyrogallol acetone resin and its synthesis method. Background technique [0002] In the invention patent (USP618212 (1990)) published by 3M Company in 1990, they used diphenylacetic acid and chloromethyl methyl ether, vinyl ethyl ether, dihydropyran, dihydrofuran and other active alkenes. Addition gives diphenyl acetate. This kind of ester is mixed with an acid generator, novolac resin and additives in a certain proportion, dissolved with an appropriate solvent, coated and dried, and the obtained resist coating will generate protonic acid in the exposed part after ultraviolet exposure, and it will be cured at room temperature. It can decompose the active ester of d...

AI Technical Summary

Problems solved by technology

However, the invention of 3M Company has two serious problems: ① The compound has poor stability and is stored at room temperature, especially when it encounters light and moisture, it will quickly decompose by itself, making it difficult to preserve

②This compound is a liquid with extremely low viscosity, and the strength of the film layer will decrease when it is added to the photosensitive composition of the CTP plate, which will seriously affect the printing resistance

However, the etherified precursor in this technology is a single compound, so that the etherified ester and ether compounds are basically viscous, which is inconvenient to store and use.

When this compound is added to the photosensitive composition of the CTP plate, the strength of the film layer will decrease, which will affect the printing resistance and the layout of the plate.