Photosensitive resin composition
A photosensitive composition and photosensitive resin technology, applied in the directions of optics, photosensitive materials for opto-mechanical equipment, opto-mechanical equipment, etc., can solve the problems of no stability improvement of the photosensitive resin composition, no instructions for use of acrylic resin, etc.
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Synthetic example 1
[0128] Synthesis Example 1 (Synthesis of Acrylic Copolymer 1)
[0129] 700g propylene glycol monomethyl ether acetate, 171g methyl methacrylate, 90g 2-hydroxypropyl methacrylate, 39g methacrylic acid and 12.6g dimethyl 2,2'-azobis(2- Methyl propionate), poured into a 2,000ml four-neck flask equipped with a stirrer, condenser, thermometer and nitrogen inlet tube, mixed, then heated, while nitrogen was introduced, and polymerized at 85°C for continuous For 8 hours, Acrylic Copolymer 1 having a weight average molecular weight of 11,000 was obtained.
Synthetic example 2
[0130] Synthesis Example 2 (Synthesis of Acrylic Copolymer 2)
[0131] 700g propylene glycol monomethyl ether acetate, 171g methyl methacrylate, 90g 2-hydroxypropyl methacrylate, 39g methacrylic acid, 6.3g dimethyl 2,2'-azobis(2- methyl propionate) [molecular weight: 230.26] and 4.5 g of 2,2'-azobisisobutyronitrile [molecular weight: 164.21], poured into a tank equipped with a stirrer, condenser, thermometer and nitrogen introduction tube In a 2,000 ml four-neck flask, mixing was performed, followed by heating while introducing nitrogen gas, and polymerization was carried out at 85° C. for 8 hours to obtain an acrylic copolymer 2 having a weight average molecular weight of 11,000.
Synthetic example 3
[0132] Synthesis Example 3 (Synthesis of Acrylic Copolymer 3)
[0133] Pour 700g of propylene glycol monomethyl ether acetate, 171g of methyl methacrylate, 90g of 2-hydroxypropyl methacrylate, 39g of methacrylic acid and 9g of 2,2'-azobisisobutyronitrile into A 2,000ml four-necked flask equipped with a stirrer, a condenser, a thermometer and a nitrogen inlet tube was mixed, then heated, and nitrogen gas was introduced at the same time, and polymerization was carried out at 85°C for 8 hours to obtain a compound having a weight average molecular weight of 11,000 Acrylic Copolymer 3.
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