5-Chloromethyl-8-hydroxyquinoline (CHQ) was first prepared through the reaction between HQ and chloromethylation reagent 1

4-bichloromethoxy-butane (BCMB).The Friedel-Crafts alkylation reaction was carried out between CHQ and polystyrene (PS)

and HQ was bounded onto the side chains of PS

obtaining the modified polystyrene HQ-PS.And then

the coordination reaction between HQ-PS and 8-hydroxyquinoline aluminum complex Alq2 that have two HQ ligands was conducted

and the luminous material Alq3-PS

on which 8-hydroxyquinoline aluminum complex Alq3 is attached chemically

was achieved

namely

the polymeric Alq3 was prepared.In order to fully characterize the chemical structure and properties of Alq3-PS

several characterization means were employed such as FTIR

1H-NMR

UV-Vis absorption spectrum and thermogravimetric analysis (TGA)

and its luminous performance was determined.In this work

the effects of the main factors on the Friedel-Crafts alkylation reaction were investigated

and the reaction conditions were optimized.The experimental results show that the Friedel-Crafts alkylation reaction between PS and CHQ can proceed successfully

and the suitable reaction conditions are as follows: a temperature of 70℃

with N

N-dimethylformamide (DMF) as solvent

and using SnCl4 as Lewis catalyst.The Alq3-containing polystyrene

Alq3-PS

possesses the fluorescence-emission spectrum of Alq3 and has higher thermostability than polystyrene.