Water-soluble polymer, and preparation method and application thereof
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A technology of water-soluble polymers and polymers, applied in the field of functional polymers and their applications, to achieve outstanding processing capabilities and avoid weaker binding effects
Active Publication Date: 2017-03-29
SANMING UNIV
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[0011] Although the performance of the existing dispersant is acceptable, it is still necessary to continue to improve the coloring strength of the pigment and reduce the viscosity of the system.
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Embodiment 1
[0043] Add 5.52 g (0.02 mol) 9,10-dihydroanthracene-9,10-α, β-maleic anhydride in a 250 ml three-necked flask, add 20 g dipropylene glycol dimethyl ether, 40 g M n M-2070 of 2000, magnetically stirred, equipped with a thermometer, passed nitrogen, heated to 130 ° C, and kept for 6 h. After cooling, add 25.5 g of water and dilute to obtain a light yellow solution.
[0044] From figure 1 It can be seen that the chemical shift 3.25 ppm (b) place in the figure is the characteristic peak of the methine linked with the amide bond, the 3.1ppm (a) place is the characteristic peak of the methine linked with the carboxyl group, and the 3.4ppm (c) It is the characteristic peak of the methylene at the connection between polyether and amide, and it is confirmed by the hydrogen nuclear magnetic spectrum that 9,10-dihydroanthracene-9,10-α,β-maleic anhydride has reacted with polyetheramine.
Embodiment 2
[0046] Add 5.52 g (0.02mol) 9,10-dihydroanthracene-9,10-α,β-maleic anhydride in a 250 ml three-necked flask, 40 gM n M-2070 of 2000, magnetically stirred, equipped with a thermometer, passed nitrogen, heated to 130 °C, and kept for 6 h. After cooling, add 45.5 g of water and dilute to obtain a light yellow solution.
Embodiment 3
[0048] Add 5.52 g (0.02mol) 9,10-dihydroanthracene-9,10-α,β-maleic anhydride in a 250 ml three-necked flask, 40 gM n 2000, PO / EO=2 / 42 L-200 surface-active amine, magnetically stirred, equipped with a thermometer, nitrogen gas, heated to 100 °C, and kept for 6 h. After cooling, add 45.5 g of water and dilute to obtain a light yellow solution.
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Abstract
The invention discloses a water-soluble polymer, and a preparation method and application thereof, which belong to the field of functional polymers and application thereof. The preparation method comprises the steps of adopting 9, 10-dihydroanthracene-9, 10-alpha, beta-maleic anhydride and monofuctional polyether amine as raw materials; feeding inert gas; and after warming and reacting, diluting by adding water to prepare the water-soluble polymer. The water-soluble polymer prepared by the invention has multiple functions of aromatic nucleus, carboxyl, amidogen, a hydrophobic end and the like, so that the defects of weak combination of a dispersing agent and a pigment, poor system stability, high viscosity and the like can be avoided, the processing capacity of the water-soluble polymer with multiple pigments at the same time is outstanding, and the water-soluble polymer has wide universality in a water-based paint and has an excellent viscosity reducing effect.
Description
technical field [0001] The invention belongs to the field of functional polymers and their applications, in particular to a water-soluble polymer and its preparation method and application. Background technique [0002] "Amphiphilic" polymers in the art usually have some segments in the ester polymer chain that are hydrophilic and some segments are hydrophobic, so this type of compound usually exhibits special surface activity, and some of this type of compound It can be used as a dispersant in the fields of coatings or inks. [0003] Adding a solid to a liquid medium usually requires strong mechanical force. The degree of dispersion of a solid depends largely on the ease with which the solid is wetted by the surrounding medium and its affinity with that medium. In the production of paints, inks, varnishes and other coatings, pigments are usually introduced into resins or solvents in the form of solids, and the dispersion effect of pigments directly determines the appearan...
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