Photosensitive resin composition and application thereof
A photosensitive resin and composition technology, applied in the field of photoinitiators, can solve the problems of cured products such as amine odor, easy yellowing, increased use of reagents and operating procedures, etc., to reduce the use of chemicals, simplify the production process, and achieve good efficiencies elicited
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Embodiment 1
[0057] Embodiment 1: the synthesis of photoinitiator Q3
[0058] The synthetic route of photoinitiator Q3 is as figure 1 shown.
[0059] Step 1: Add 150mL of acetone into a round bottom flask, add 3.32g (24.0mmol) of potassium carbonate, 12ml of bromopropylene (138.0mmol) and 720.6mg (3.0mmol) of 1,4-dihydroxyanthraquinone to fully dissolve them. The reaction system was sealed and protected from light, and stirred under reflux at 58° C. for 20 h. Monitor the reactant 1,4-dihydroxyanthraquinone by TLC plate After consumption, 150mlH 2 O was added to the reaction system and extracted with ether (3 x 60ml). After completion, the organic phases were combined and washed with H 2 O and washed with saturated brine. After the organic phase was dried and concentrated, it was purified by silica gel column (eluent: petroleum ether / ethyl acetate=4 / 1), and the yellow solid product (Q2) was obtained 676.5 mg after removal of the solvent, with a yield of 80%.
[0060] Step 2: Under arg...
Embodiment 2
[0063] Embodiment 2: performance detection of Q3
[0064] 1. UV-visible absorption test: preparation 2.2×10 -5 The mol / L acetonitrile solution of Q3 synthesized by the present invention was tested for ultraviolet-visible absorption by a TU1901 ultraviolet-visible spectrophotometer of the Lambda Company of Japan. UV-Vis absorption spectrum such as image 3 shown by image 3 It can be seen that the maximum ultraviolet absorption of the photoinitiator extends to around 550nm, indicating that the photoinitiator of the present invention can be used as a visible light photoinitiator.
[0065] 2. Photolysis test: preparation 2.813×10 -4 Add 2mL of mol / L Q3 acetonitrile solution to a 1cm×1cm×3cm quartz cuvette. Using OmniCure S1000 UV / visible point light source irradiation (LED@405nm), fix the distance between the UV / visible light point light source fiber and the cuvette, and measure the radiation power at the cuvette with a blue light irradiation meter to be 45mw / cm 2 . The UV ...
Embodiment 3
[0067] Embodiment 3: Q3 tests the polymerization kinetics of acrylate monomer
[0068] First weigh 200.0 mg of trimethylolpropane triacrylate (TMPTA), add 2.0 mg of Q3 photoinitiator prepared in Example 1, and stir evenly. Obtain a real-time infrared test sample, wherein the photoinitiator content is 1wt%. The sample was smeared on the KBr salt sheet and irradiated by OmniCure S1000 UV / visible light point light source. The radiation energy density measured by the blue light irradiation meter (405nm detection head) was 45mw / cm 2 , the radiation curing time is 900s, and the conversion rate of the acrylate double bond is monitored in real time by Nicolet6700 Fourier Transform Infrared Spectrometer of Thermo Fisher Scientific Co., Ltd. of the United States. Acrylate double bond peak area interval is taken as 1650cm -1 -1550cm -1 .
[0069] Such as Figure 6 Shown is the real-time conversion curve for photoinitiator-induced TMPTA curing. Among them, the final conversion rate ...
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