Optical pressure-sensitive resin and preparation method thereof
A technology of pressure-sensitive resins and resins, applied in adhesive types, ester copolymer adhesives, etc., can solve the problems of optical pressure-sensitive resins that do not have fast curing and high curing energy, and achieve excellent comprehensive performance and good adhesion , the effect of fast response speed
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[0034] Example 1
[0035] Accurately weigh 120g of isooctyl acrylate, 5g of N-hydroxyethyl acrylamide (HEAA), 0.01g of polymerization inhibitor p-hydroxyanisole, 1g of n-dodecyl mercaptan (NDM), and 100g of ethyl acetate. In a three-necked flask with a thermometer, the temperature was raised to 65 degrees, and a 50g solution of ethyl acetate containing 1g of azobisisobutyronitrile (AIBN) was added dropwise. The temperature was controlled at 70-80 degrees and reacted for 2.5 hours to obtain a polymer 1. The structural formula is shown in general formula (II), where x=1, y=15,
[0036] Add 6g of ethyl isocyanate acrylate (AOI) to polymer one, control the temperature at 70-80 degrees, and react for 2.5h. Analyze the content of NCO groups with an infrared spectrometer. When the NCO peak disappears completely, stop the heating reaction to obtain a polyacrylate modified polyurethane acrylate resin. The structural formula is as shown in the general formula (I), x=1, y=15 , The weight av...
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[0038] Example 2
[0039] Accurately weigh 100g of isooctyl acrylate, 2g of N-hydroxyethyl acrylamide (HEAA), 0.06g of polymerization inhibitor p-hydroxyanisole, 1.2g of n-dodecyl mercaptan (NDM), and 100g of ethyl acetate. Into a three-necked flask with a thermometer, the temperature was raised to 65 degrees, and 50 g of ethyl acetate solution containing 1.2 g of azobisisobutyronitrile (AIBN) was added dropwise, the temperature was controlled at 70-80 degrees, and the reaction was carried out for 2.5 hours to obtain Polymer 1, the structural formula is shown in the general formula (II), where x=1, y=30,
[0040] Add 2.6 g of ethyl isocyanate acrylate (AOI) to polymer one, control the temperature at 70-80 degrees, and react for 3 hours. Analyze the content of NCO groups with an infrared spectrometer. When the NCO peak disappears completely, stop the heating reaction to obtain a polyacrylate modified polyurethane acrylate resin. The structural formula is as shown in the general for...
Example Embodiment
[0042] Example 3
[0043] Accurately weigh 140 g of isooctyl acrylate, 11.2 g of N-hydroxyethyl acrylamide (HEAA), 0.08 g of polymerization inhibitor p-hydroxyanisole, 1.3 g of n-dodecyl mercaptan (NDM), and 100 g of ethyl acetate Add to a three-necked flask with a thermometer, heat up to 65 degrees, start to add dropwise a 50g solution of ethyl acetate containing azobisisobutyronitrile (AIBN) 1.9g, control the temperature at 70-80 degrees, and react for 2h to obtain Polymer 1, the structural formula is shown in general formula (II), where x=4, y=30,
[0044] Add 14.1 g of ethyl isocyanate acrylate (AOI) to polymer one, control the temperature at 70-80 degrees, and react for 3 hours. Analyze the content of NCO groups with an infrared spectrometer. When the NCO peak disappears completely, stop the heating reaction to obtain a polyacrylate modified polyurethane acrylate resin. The structural formula is as shown in the general formula (I), where x=4, y= 30. The weight average molec...
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