The invention relates to an A-B-C block polymer formulated from an ethylenically unsaturated monomer, said A block and said C block being terminally disposed and said B block being interposed between said A block and said C block; said A block and said C block having crosslinkable functional groups, said B block being essentially free of reactive functional groups.
The polymer can be obtained through controlled radical polymerization in the presence of an initiator and a metal complex or a metal-containing compound.
The invention also relates to a powder paint composition comprising said A-B-C block polymer.