We report a simple method for the preparation of double helical structures through a series of achiral random and block copolymers poly(styrene-co-4-vinylbenzyl triazolylmethyl methylthymine) (PS-co-PVBT) with various T units on the side chains through click reactions of poly(styrene-co-4-vinylbenzyl azide) (PS-CO-PVBN3) with propargyl-thymine (PT) and then also synthesized the A-appended pyrene derivative (A-Py) through click chemistry.This double helical structure was observed from achiral random-coil polystyrene (PS) main chains,stabilized through the combination of multiple A-T hydrogen bonds and丌-兀 stacking between pyrene units and single-walled carbon nanotubes (SWCNTs).