A positive photosensitive resin composition and applications thereof
A technology of photosensitive resin and composition, which is applied in the direction of optics, optomechanical equipment, instruments, etc., can solve the problems of low dielectric strength, low temperature, and unsatisfactory heat resistance of materials, and achieve the effect of good insulation
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Synthetic example A-1
[0206] A nitrogen inlet, a stirrer, a heater, a condenser tube and a thermometer are arranged on a four-neck conical flask with a capacity of 1000 milliliters. After introducing nitrogen, add 20 parts by weight of methacrylic acid (hereinafter referred to as MAA), 35 parts by weight of glycidyl methacrylate (hereinafter referred to as GMA), 30 parts by weight of dicyclopentyl methacrylate (hereinafter referred to as FA-513M), 15 parts by weight of styrene (hereinafter referred to as SM), 5 parts by weight of 2,2'-azobis(2,4-dimethylvaleronitrile) (hereinafter referred to as ADVN) and 300 parts by weight Diethylene glycol dimethyl ether (hereinafter referred to as Diglyme) in parts by weight is put into the reaction bottle. Next, the above ingredients were stirred slowly, and the solution was heated to 70°C. After performing the polycondensation reaction for 4 hours, the solvent was devolatilized to obtain the alkali-soluble resin (A-1) of Synthesis Example A-1.
[0207]
...
Synthetic example B-1-1
[0215] In a dry nitrogen environment, add 0.1 mole of the stilbene compound with a hydroxyl group represented by the aforementioned formula (I-1) and 0.13 mole of o-naphthoquinonediazide-5-sulfonic acid chloride to 450 g of γ-butyrolactone .
[0216] Then, 0.14 mol of triethylamine was dissolved in 50 g of 1,4-dioxane to configure a mixed solution. The mixed solution was added dropwise to the aforementioned γ-butyrolactone solution, and the temperature of the solution was prevented from exceeding 35°C.
[0217] After stirring at 30°C for 2 hours, the precipitated triethylamine salt was filtered, and the filtrate was poured into water.
[0218] Then, the precipitate is collected by filtration, and the precipitate is dried by a vacuum dryer to obtain Synthesis Example B-1-1 having the structure shown in the following formula (I-1-1) and its esterification rate is 65%. :
[0219]
[0220] In formula (I-1-1), Q 1 represent or hydrogen atoms, and the ratio of the two is 1....
Synthetic example B-1-2
[0222] In a dry nitrogen atmosphere, add 0.1 mole of the stilbene compound with a hydroxyl group represented by the aforementioned formula (I-2) and 0.14 mole of o-naphthoquinonediazide-5-sulfonic acid chloride to 450 g of γ-butyrolactone .
[0223] Then, 0.154 mol of triethylamine was dissolved in 50 g of 1,4-dioxane to configure a mixed solution. The mixed solution was added dropwise to the aforementioned γ-butyrolactone solution, and the temperature of the solution was prevented from exceeding 35°C.
[0224] After stirring at 30°C for 2 hours, the precipitated triethylamine salt was filtered, and the filtrate was poured into water.
[0225] Then, the precipitate is collected by filtration, and the precipitate is dried by a vacuum dryer to obtain Synthesis Example B-1-2 with a structure shown in the following formula (I-2-1) and its esterification rate is 70 %:
[0226]
[0227] In formula (I-2-1), Q 2 represent or hydrogen atoms, and the ratio of the two is 1.4:0.6...
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