Pigment composition containing octadecylamino bisazo condensation compound and preparation method thereof
A technology of composition and compound, applied in the field of chemical dyes, can solve the problems of unsatisfactory product transparency and difficulty in making breakthroughs in transparency, and achieve the goal of being suitable for large-scale industrial production, easy to control reaction conditions, The effect of improving transparency
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Embodiment 1
[0076] Put 30g of acid chloride (0.0144mol) into a 250ml four-necked flask containing 100g of dichlorobenzene, heat the oil bath to 130°C, add dropwise 0.77g (0.00288mol) of octadecylamine, and 3.67g (0.02592mol) of 3- The dichlorobenzene solution of chloro-2-methylaniline was added dropwise for 30 minutes, and after the dropwise addition was completed, the temperature was raised to 150°C and kept for 3 hours. Filtering at lower temperature, washing with methanol and then water, recovering the solvent, and drying the filter cake to obtain the bis-azo condensation compound.
[0077] The electron microscope observation results of the figure 2 shown.
[0078] Its X-ray diffraction results are as follows Figure 4 shown.
[0079] Using infrared spectrometer to carry out infrared spectrum test, the results are as follows Figure 6 shown. Depend on Figure 6 It can be seen that due to the introduction of octadecylamine, there are multiple methylene groups in the product, and ...
Embodiment 2
[0082] Put 30g of acid chloride (0.0144mol) into a 250ml four-necked flask containing 100g of dichlorobenzene, heat the oil bath to 130°C, add 1.16g (0.00432mol) of octadecylamine dropwise, and 3.46g (0.02448mol) of 3- The dichlorobenzene solution of chloro-2-methylaniline was added dropwise for 30 minutes, and after the dropwise addition was completed, the temperature was raised to 150°C and kept for 3 hours. Filtering at lower temperature, washing with methanol and then water, recovering the solvent, and drying the filter cake to obtain the bis-azo condensation compound.
[0083] Its electron microscope observation result, X-ray diffraction pattern and infrared spectrogram are similar to the product obtained in Example 1;
[0084] The elemental analysis results are: C, 44.56; H, 38.99; Cl, 4.80; N, 8.07; O, 6. The molecular formula thus determined is C 44.65 h 39.65 N 8.15 o 6 Cl 4.85 . According to calculation, the content of C and H elements in the product prepare...
experiment example 1
[0091] Experimental example 1 Electron microscope analysis
[0092] Using an electron microscope, respectively test Comet Touhuang 3GNP and the disazo condensation compound prepared in Example 1, the results are shown in Figure 1~2 .
[0093] Such as Figure 1~2 Shown, the crystallization state of its particle of the product that the present invention makes clearly changes.
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