| 摘要 |
<p>According to the invention there is provided a method of encapsulating a substance including the steps of: providing a monomer which includes a group of sub-formula (I) where R2 and R3 are independently selected from (CR7R8)n, or a group CR9R10, CR7R8CR9R10 or CR9R10CR7R8 where n is O, 1 or 2, R7 and R8 are independently selected from hydrogen, halo or hydrocarbyl, and either one of R9 or R10 is hydrogen and the other is an electron withdrawing group, or R9 and R10 together form an electron withdrawing group, and R4 and R5 are independently selected from CH or CR11 where R11 is an electron withdrawing group; the dotted lines indicate the presence or absence of a bond, X1 is a group CX2X3 where the dotted line bond to which it is attached is absent and a group CX2 where the dotted line bond to which it is attached is present, Y1 is a group CY2Y3 where the dotted line bond to which it is attached is absent and a group CY2 where the dotted line bond to which it is attached is present, and X2, X3, Y2 and Y3 are independently selected from hydrogen, fluorine or other substituents; R1 is selected from hydrogen, halo, nitro, or hydrocarbyl, optionally substituted or interposed with functional groups; R12 is selected from hydrogen, halo, nitro, hydrocarbyl, optionally substituted or interposed with functional groups, or -R3-R5?Y1; and Z is an anion of charge m; mixing the monomer with the substance and, optionally, at least one of a solvent for the monomer and an initiator to form a monomer containing mixture; placing a pre-determined quantity of the monomer containing mixture in a pre-determined location so as to form a desired shape; and polymerising the monomer so as to produce a polymeric matrix of a desired shape which encapsulates the substance.</p> |
