US 11,873,353 B2
Flow synthesis of polymer nanoparticles
Marta Antoniv, Cambridge, MA (US); Hooisweng Ow, Woburn, MA (US); S. Sherry Zhu, Waban, MA (US); and Martin E. Poitzsch, Northumberland, NH (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on May 29, 2020, as Appl. No. 16/886,850.
Claims priority of provisional application 62/854,074, filed on May 29, 2019.
Prior Publication US 2020/0377626 A1, Dec. 3, 2020
Int. Cl. C08F 2/01 (2006.01); C08F 220/18 (2006.01); B01J 19/00 (2006.01); B01J 19/18 (2006.01); C08F 2/22 (2006.01); C08F 212/08 (2006.01); B82Y 40/00 (2011.01)
CPC C08F 2/01 (2013.01) [B01J 19/0093 (2013.01); B01J 19/18 (2013.01); C08F 2/22 (2013.01); C08F 212/08 (2013.01); C08F 220/1804 (2020.02); B01J 2219/00029 (2013.01); B01J 2219/00033 (2013.01); B01J 2219/0086 (2013.01); B01J 2219/00891 (2013.01); B01J 2219/00959 (2013.01); B82Y 40/00 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A method of flow synthesis of polymer nanoparticles, comprising:
feeding a mixture comprising a radical initiator to a continuous flow reactor comprising a channel;
heating the mixture in a preheating section of the continuous flow reactor;
feeding monomer to the continuous flow reactor;
mixing the monomer with the mixture in a reaction section of the continuous flow reactor downstream of the preheating section;
polymerizing the monomer in presence of the radical initiator in the reaction section to form polymer nanoparticles, wherein polymerizing the monomer comprises emulsion polymerization; and
discharging the polymer nanoparticles from the continuous flow reactor, wherein discharging the polymer nanoparticles comprises discharging a slurry from the continuous flow reactor, the slurry comprising the polymer nanoparticles and water, and wherein the polymer nanoparticles comprise a polydispersity index (PDI) less than 0.1.