Lithium sulphur batteries hold great potential due to its around 5 fold energy density promotion compare to conventional lithium ion batteries. However, wide-scale has been impeded by rapid capacity fading mainly caused by shuttle effect in consequence of intermediate polysulphides diffusion. Herein, we propose a scalable bottom-up polymer approach to immobilize intermediate polysulphides.  The evolution of the chemical bonding was studied in detail. The electrochemical results show a high initial capacity of ca. 1500 mAh/g and 900 mAh/g after 100 cycles specifically at 0.05 C to magnify the shuttle effect. Moreover, a high areal capacity of ca. 6 mAh/cm² is achieved, which demonstrate the excellent capability to trap soluble polysulphide intermediates.