| 摘要 |
Disclosed is a process for the production of an oil-in-water emulsion having an oil discontinuous phase and an aqueous continuous phase which process comprises reacting (i)a polymeric stabilizer of formula (I) which is a random graft copolymer or a block copolymer, comprises a plurality of vinylic monomers and which is soluble or dispersible in the continuous phase, wherein: G is a group * or hydrophile, R1, R and R2 are each independently H or methyl, X is a hydrophilic moiety, L is a moiety containing a cross-linking group capable of undergoing a cross-linking nucleophilic or condensation reaction at the interface of dispersed and continuous phases of said emulsion, wherein said cross linking group is selected from -SH, -OH, -NHA where A is defined, Y is a hydrophobic moiety; With (ii) one or more substances dissolved in the liquid discontinuous oil phase which react with said cross-linking group. Additionally disclosed is a process for the production of microcapsules using the above described oil-in-water emulsion. |
