Hollow polymer capsule containing holes in shell and preparation method thereof
A polymer, mesopore-containing technology, applied in microcapsule preparations, microsphere preparation and other directions, can solve problems such as high synthesis cost, achieve the effects of small size, increase specific surface area, and increase storage capacity
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Embodiment 1
[0021] 0.36g of SDS and 1.8g of PEO 40 NE was dissolved in 36 g deionized water. The pH of the aqueous phase was fixed at 7 with equal amounts of ammonium dihydrogen phosphate and disodium hydrogen phosphate. Then 0.2g HD and 0.4g poly(methyl methacrylate-b-methacryloxypropyl trimethylsilane), wherein the average molecular weight of methyl methacrylate segment is 15000, methacryloxypropyl The average molecular weight of the trimethylsilane segment is 40,000, which is dissolved in 4 g of toluene. Then use an ultrasonic pulverizer (KS600) to ultrasonicate for 15 minutes at 0° C. under the condition that the intensity is 75%. Add 0.36 g of SDS after the ultrasound, and finally transfer the obtained miniemulsion to a 250 ml medical bottle, and keep it sealed. Add NH to the sample after 4 days 4 Oh. After 5 days, the above four groups of samples were demulsified and centrifuged with methanol, washed with methanol and centrifuged again, and repeated three times to wash away the...
Embodiment 2
[0023] 0.36g of SDS and 1.8g of PEO 40 NE was dissolved in 36 g deionized water. The pH of the aqueous phase was fixed at 7 with equal amounts of ammonium dihydrogen phosphate and disodium hydrogen phosphate. Then 0.2g HD and 0.4g poly(methyl methacrylate-b-methacryloxypropyl trimethylsilane), wherein the average molecular weight of methyl methacrylate segment is 7000, methacryloxypropyl The average molecular weight of the trimethylsilane segment is 40,000, which is dissolved in 4 g of toluene. Then use an ultrasonic pulverizer (KS600) to ultrasonicate for 15 minutes at 0° C. under the condition that the intensity is 75%. Add 0.36 g of SDS after the ultrasound, and finally transfer the obtained miniemulsion to a 250 ml medical bottle, and keep it sealed. Add NH to the sample after 4 days 4 Oh. After 5 days, the above four groups of samples were demulsified and centrifuged with methanol, washed with methanol and centrifuged again, and repeated three times to wash away the ...
Embodiment 3
[0025] Mix 1.8g of SDS and 1.8g of PEO 40 NE was dissolved in 36 g deionized water. The pH of the aqueous phase was fixed at 7 with equal amounts of ammonium dihydrogen phosphate and disodium hydrogen phosphate. Then 0.2g HD and 0.4g poly(methyl methacrylate-b-methacryloxypropyl trimethylsilane), wherein the average molecular weight of methyl methacrylate segment is 15000, methacryloxypropyl The average molecular weight of the trimethylsilane segment is 40,000, which is dissolved in 4 g of toluene. Then use an ultrasonic pulverizer (KS600) to ultrasonicate for 15 minutes at 0° C. under the condition that the intensity is 75%. Add 0.36 g of SDS after the ultrasound, and finally transfer the obtained miniemulsion to a 250 ml medical bottle, and keep it sealed. Add NH to the sample after 4 days 4 Oh. After 5 days, the above four groups of samples were demulsified and centrifuged with methanol, washed with methanol and centrifuged again, and repeated three times to wash away ...
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