| 摘要 |
The invention provides an improved method of making graft polymers. In particular, the invention provides a method of making graft polymers comprising providing an emulsion comprising at least one or more first monomer (a), at least one or more second monomer (b), and at least one graft material (c). The emulsion is subjected to conditions such that it undergoes simultaneous free radical polymerization and grafting. One or more first monomer (a) is unsaturated and is free of any functional groups reactable with functional groups Fb or Fc. Monomer (a) may optionally comprise a functional group Fa which is not reactive with either functional group Fb or Fc. One or more second monomer (b) is unsaturated and comprises a functional group Fb reactive with functional group Fc. Graft material (c) comprises an unsaturated compound comprising a functional group Fc reactive with functional group Fb, and a graft moiety. The unsaturated graft material (c) may be monomeric, oligomeric, or polymeric. Most preferred graft moieties are carbamate groups, groups convertible to carbamate and polyurethane polymers. |
