Graft polymerisation of PEG on chloromethylated divinylbenzene-styrene copolymer (I) in the presence of NaOH or Na naphthalene afforded a polymer support for solid-state synthesis of peptides. The effects of reaction time, temperature, and NaOH concentration on PEG grafting level were determine The reaction rate of amino acids and yield of peptides on PEG support was slightly higher than those for I support.

Key words: AMINO ACID, APPLICATION, SYNTHESIS, CONDENSATION REACTION, REACTION KINETICS, GRAFT COPOLUMERIZATION, CARRIERS, POLYETHYLENE OXIDE, STYRENE-DIVINYLBENZENE COPOLYMER, POLYPEPTIDE