Water compatible nanogel compositions
View Patent ↗The present invention relates to preparation and use of water dispersible nanogels and solvent dispersible reactive nanogels as additives to enhance polymer properties or as precursors to polymeric networks.
1. A water dispersible nanogel produced by a process comprising:
(i) combining a monomer mixture comprising at least one monovinyl monomer, at least one divinyl monomer, a difunctional chain transfer agent, and an initiator; and (ii) polymerizing said mixture to form the water dispersible nanogel;
wherein said at least one monovinyl monomer comprises polyethoxy (10) ethyl methacrylate (E10 HEMA).
2. The nanogel according to claim 1 , wherein the divinyl monomer is selected from one or more of the group consisting of ethylene glycoldi(meth)acrylate, tetraethyleneglycoldi(meth)acrylate (TTEGDMA), urethane dimethacrylate (UDMA), the condensation product of bisphenol A and glycidyl (meth)acrylate, 2,2′-bis [4-(3-methacryloxy-2-hydroxy propoxy)-phenyl] propane (bis-GMA), ethoxylated bisphenol-A-di(meth)acrylate (BisEMA), hexanediol di(meth)acrylate, polyethyleneglycol dimethacrylate, tripropylene glycol di(meth)acrylate, butanediol di(meth)acrylate, neopentyl glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, dipropylene glycol di(meth)acrylate, allyl (meth)acrylate, divinyl benzene, bis(meth)acrylamide, and 1,3-diglycerolatediacrylate.
3. The nanogel according to claim 2 , wherein said divinyl monomer is tetraethyleneglycoldi(meth)acrylate (TTEGDMA), ethoxylated bisphenol-A-di(meth)acrylate (BisEMA), or polyethyleneglycol dimethacrylate.
4. The nanogel according to claim 1 , wherein the polyethoxy (10) ethyl methacrylate (E10 HEMA) is present in from 50 mol % to about 90 mol % compared to the mols of monomer in the monomer mixture.