A kind of amphiphilic copolymer and its preparation method and application
An amphiphilic copolymer and substance technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of unsuitable industrial production or large-scale application promotion, limited raw material sources, poor compatibility, etc. The effect of short time, wide source of raw materials and simple preparation method
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Embodiment 1
[0104] Example 1 Preparation of 1# copolymer
[0105] Step 1. Add 2g sodium α-alkenyl sulfonate to the round-bottomed flask, and place the round-bottomed flask in an oil bath;
[0106] Step 2. Add 6g of acrylamide and 2g of dimethyldiallyl ammonium chloride to beaker I in turn, add 85ml of water, pass nitrogen and deoxygenate for 20min to obtain solution a;
[0107] Step 3. Add 0.05g of initiator sodium persulfate to beaker II, add 5ml of water to dissolve, and pass nitrogen and deoxygenate for 20min to obtain solution b;
[0108] Step 4. Add the solution a obtained in step 2 into the round-bottomed flask in step 1, and heat and stir at 40°C under the condition of 200 rpm to obtain solution c;
[0109] Step 5. Add solution b in step 3 to the dropping funnel above the round-bottomed flask in step (1), add solution b dropwise to solution c, dropwise for 5 minutes, and react at 80°C for 5 hours , the copolymer was obtained, which was recorded as sample 1#.
[0110] (Note: AOS-...
Embodiment 2
[0111] Example 2 Preparation of 2# copolymer
[0112] Step 1. Add 5g sodium α-alkenyl sulfonate to the round-bottomed flask, and place the round-bottomed flask in an oil bath;
[0113] Step 2. Add 5g of acrylamide into beaker I, add 85ml of water, pass nitrogen and deoxygenate for 20min to obtain solution a;
[0114] Step 3. Add 0.03 g of initiator sodium persulfate to beaker II, add 5 ml of water to dissolve, pass nitrogen and deoxygenate for 20 min, and obtain solution b;
[0115]Step 4. Add the solution a obtained in step 2 into the round-bottomed flask in step 1, and heat and stir at 40°C under the condition of 300 rpm to obtain solution c;
[0116] Step 5. Add solution b in step 3 into the dropping funnel above the round-bottomed flask in step (1), add solution b dropwise to solution c, dropwise for 7 minutes, and react at 70°C for 8 hours , the copolymer was obtained, which was recorded as sample 2#.
[0117] (Note: AOS-AM binary)
Embodiment 3
[0118] Example 3 Preparation of 3# copolymer
[0119] Step 1. Add 2g of sodium oleate into the round-bottomed flask, and place the round-bottomed flask in an oil bath;
[0120] Step 2. Add 8g of acrylamide into beaker I, add 85ml of water, pass nitrogen and deoxygenate for 20min to obtain solution a;
[0121] Step 3. Add 0.05g of initiator sodium persulfate to beaker II, add 5ml of water to dissolve, and pass nitrogen and deoxygenate for 20min to obtain solution b;
[0122] Step 4. Add the solution a obtained in step 2 into the round-bottomed flask in step 1, and heat and stir at 40°C under the condition of 300 rpm to obtain solution c;
[0123] Step 5. Add solution b in step 3 into the dropping funnel above the round-bottomed flask in step (1), add solution b dropwise to solution c, dropwise for 5 minutes, and react at 80°C for 5 hours , the copolymer was obtained, which was recorded as sample 3#.
[0124] (Note: SO-AM binary)
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