Aromatic polyamide sulfonamide polymer, negative photosensitive composition containing aromatic polyamide sulfonamide polymer and application of negative photosensitive composition
A technology of aromatic polyamide sulfonamide and polyamide sulfonamide, which is applied in the field of negative photosensitive compositions, can solve the problems of unresolved material stability, poor tensile performance, and large loss of film thickness, etc., and achieve performance reduction, Improvement of solubility and small loss of film thickness
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Synthetic example 1
[0075] Synthesis Example 1: Synthesis of m-chlorosulfonyl benzoyl chloride
[0076] The acid chloride precursor (m-chlorosulfonyl benzoyl chloride, as shown in formula 10) used in the synthesis of polyamide sulfonamide polymers mentioned in the present invention can be passed through trichloromethylbenzene (formula 11-1) and chlorosulfonic acid ( Formula 11-2) It is obtained by heating reaction under normal pressure under mechanical stirring. The following is a synthetic method for preparing m-chlorosulfonyl benzoyl chloride: Put 6 parts (molar) of chlorosulfonic acid in a three-necked flask, heat and stir to 110~130℃, and then slowly add 1~6 parts (molar) ) Trichloromethylbenzene is added dropwise in about 1.5 to 2 hours, after which the temperature is maintained for 3 hours. After the completion of the reaction, distillation was carried out under reduced pressure, and the fraction at 146°C was collected under a pressure of 9 mm Hg to obtain m-chlorosulfonyl benzoyl chloride.
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Synthetic example 2
[0079] Synthesis Example 2: Synthesis of Polymer-1
[0080] In a four-necked flask with a mechanical stirrer, a thermometer and a high-purity nitrogen atmosphere, add 2,2'-bis(trifluoromethyl)diaminobiphenyl (100mmol), 2-methylpyridine (300mmol), and Water N-methyl-2-pyrrolidone (NMP) (47.25g), stir until completely dissolved (the solution becomes clear), and cool to -10°C. Keeping the above solution in the temperature range of -10 to -5°C, add dropwise the dissolved m-chlorosulfonyl benzoyl chloride (100 mmol) (obtained from Synthesis Example 1) and anhydrous N-methyl-2-pyrrolidone ( 42.00 g) of the mixed solution, drip in about half an hour, and then continue to stir for 1 hour while keeping the temperature of the solution at 0 to 5°C. The obtained reaction solution was slowly trickled into about 8 kg of water, settled and filtered to recover the precipitate, and the same process was repeated and washed with pure water 3 times to obtain a wet product. And dried in a vacuum ov...
Synthetic example 3
[0083] Synthesis Example 3: Synthesis of Polymer-2
[0084] The synthesis method of polymer-2 is exactly the same as that of polymer-1, except that the diamine precursor 2,2'-bis(trifluoromethyl)diaminobiphenyl (100mmol) is used in the synthesis of polymer-2 It is completely replaced by 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (100mmol). Therefore, the three structural fragments of polymer-2 constitute the following formula (polymer-2). Among them, the ratio between m, n and p satisfies the relationship of 1:1:2. The weight average molecular weight of Polymer-2 is 58,765 and the dispersion degree is 1.74.
[0085] (Polymer-2)
[0086]
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