“One-pot”reaction of 1

3

5-tfibromobenzene with nonylmagnesium bromide

prepared by 1-bromononane with magnesium in THF

catalyzed by Ni (PPh3)2Cl2

was used to obtain hyperbranched polyphenylene 1．The maeromolecule was characterized by GPC with molecular weight Mn=4247 and polydispersity PD=1.36．Under the conditin of Heek reaction catalyzed by palladium-complexes

the terminal bromine groups on this macmmolecule coupled with styrene and phenylacetylene

respectively

to provide correspondign hyperbranched polyphenylene 2 and 3 with stilbenyl and diphenylacetyl fluorophores on their surface．These two polymers both exhibited two bands E1 and E2 at near 260 nm and 300 nm in their UV spectra．In their powder photoluminescence spectra

the maximum emitting peaks at 401 am and 386 nm in the range of blue luminescence were observed

respectively．