Abstract: A polymer composition is provided. The polymer composition includes (i) a core polymer; and (ii) a shell polymer formed over the core polymer. The core polymer includes structural units derived from monomers having a Formula I, Formula II, Formula V (optional), and Formula VI: and a structural unit derived from a monomer selected from a group consisting of monomers having a Formula III and Formula IV: The shell polymer includes an active ingredient, a polymer comprising structural units derived from a monomer having Formula, I, Formula II, and Formula VI: and a structural unit derived from a monomer selected from a group consisting of monomers having a Formula III and Formula IV.