Conjugated microporous polymers incorporating Thiazolo[5,4-d]thiazole moieties for Sunlight-Driven hydrogen production from water

•Donor–acceptor systems based on conjugated microporous polymers incorporating thiazolo[5,4-d]thiazole linkages was designed.•The integration of electron-rich pyrene and electron-deficient ThTh units in Py-ThTh-CMP provided a H2 evolution rate of 1873 µmol g–1h−1.•A new approach for preparing highly efficient photocatalysts in the quest for the practical development of cost-effective H2 evolution.