Key points are not available for this paper at this time.
A new synthetic route to hyperbranched polymers is developed. Polycyclotrimerizations of functional diynes 1 − 3 initiated by a simple base of piperidine lead to the formation of hyperbranched poly(aroylarylene)s P 1 −P 3 with perfect 1,3,5-regioregularity and high degree of branching (up to 100%) in high yields (up to 99%). The polymers show high photosensitivities and can be readily photo-cross-linked to give photoresist patterns with nanometer resolutions.
Dong et al. (2005) studied this question.