A kind of phosphorous-containing acrylic resin polymer and preparation method thereof
An acrylic resin and polymer technology, applied in the fields of polymer materials and flame retardant materials, can solve the problems of negative effects on polymerization stability, cumbersome processes, easy formation of oligomers, etc. , the effect of mild reaction conditions
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Embodiment 1
[0058] The preparation of the phosphorus-containing acrylic acid mixed monomer described in this example, the specific raw material composition is shown in Example 1 of Table 1, and is prepared by the following steps:
[0059] 1. Inhibitor, hydroxyacrylic acid monomer are added in the reaction kettle, stir evenly;
[0060] II. Add phosphorus pentoxide to the system of step I in four batches, and control the temperature of the system below 20°C during the process; after the addition of phosphorus pentoxide is completed, the system is heated to 80°C for 4 hours;
[0061] III. Add water to the reaction system obtained in step II, and control the suitable temperature to 85° C. for 1.5 h; the phosphorus-containing acrylic acid monomer mixture can be prepared.
[0062] The schematic diagram of the preparation mechanism of the phosphorous-containing acrylic acid monomer mixture is as follows: figure 1 As shown, the phosphoric acid monoester, phosphoric acid diester, pyrophosphoric a...
Embodiment 2
[0064] The preparation of the phosphorus-containing acrylic acid mixed monomer described in this example, the specific raw material composition is shown in Example 2 of Table 1, which is prepared through the same steps as Example 1, the difference is: reaction step II, phosphorus pentoxide The reaction temperature and time after the post-feeding are completed are 80°C and 3h respectively; the reaction temperature and time of step III are 90°C and 1h respectively;
[0065] The schematic diagram of the preparation mechanism of the phosphorous-containing acrylic acid monomer mixture is as follows: figure 1 As shown, the prepared phosphorus-containing acrylic acid monomer mixture is specifically composed of phosphoric acid monoester, phosphoric acid diester, phosphoric acid and unreacted hydroxyl acrylic monomer; As shown in Table 1.
Embodiment 3
[0067] The schematic diagram of the preparation mechanism of the phosphorous-containing acrylic acid monomer mixture is as follows: figure 1 As shown, the preparation of the phosphorus-containing acrylic acid mixed monomer described in this example, the specific raw material composition is shown in Example 2 of Table 1, and is prepared through the same steps as Example 1, the difference is that the reaction step II, pentoxide The reaction temperature and time after the addition of diphosphorus is completed are respectively 80°C and 3h; the reaction temperature and time of step III are respectively 80°C and 2h;
[0068] The prepared phosphorus-containing acrylic acid monomer mixture is specifically composed of phosphoric acid monoester, phosphoric acid diester, phosphoric acid and unreacted hydroxyl acrylic acid monomer; the ratio of phosphoric acid monoester, phosphoric acid diester, and phosphoric acid is determined by titration, and the results are shown in Table 1 shown.
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