A novel one-pot
copolymerization reaction of an olefin including ethylene in the presence of Pd-diimine
catalyst is an effective method to synthesize polyfunctional hyperbranched
polymer. The terminal polar groups within the polymer are reactive for further
polymerization reactions like ATRP and ROP. The effective macroinitiators can
be used to synthesize core-shell structured with a hyperbranched polyethylene
core grafted with side chains of polar monomers. Unlike dendrimers that often
require tedious synthetic procedures, hyperbranched polymers are more easily
produced in large scale, which reduce the cost of preparing and increase the
overall scale in the industry.
