METHOD OF PRODUCING POLYMER MICROSPHERES CONTAINING QUANTUM DOTS Russian patent published in 2016 - IPC B82B3/00 B82B1/00 B82Y15/00 B82Y40/00 C09K11/08 C08L25/04 B82Y5/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing polymer microspheres containing quantum dots. Described is a method of producing polymer microspheres containing quantum points, comprising preparing a solution of quantum dots in an organic solvent containing a cation-active surfactant, which is alkyldimethylethylbenzylammonium chloride in amount of 1-2 wt%, with concentration of quantum dots in solution of 0.1-1.0 g/l, followed by addition to solution of quantum dots of polymer microspheres of polystyrene or polymethyl methacrylate, at ratio of polymer: solution of quantum dots, equal to 1:1, obtained mixture is subjected to ultrasonic treatment, then held for 2-6 hours at room temperature and dispersed in C₂-C₄-aliphatic alcohol with cation-active surfactant which is alkyldimethylethylbenzylammonium chloride, taken in amount of 1-2 wt%, held for 5-15 minutes, centrifuged for separation of formed precipitate, consisting of polymer microspheres containing quantum dots.

EFFECT: technical result is high aggregative stability of polymer microspheres and quantum dots at all stages preceding immobilisation into polymer microspheres, and increased percentage of quantum dots, immobilised into polymer microspheres.

3 cl, 3 ex, 1 dwg