[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][=Branch1][C][O][C][C][O][O][C][C][O]"}, {"from": "gpt", "value": "The molecule is a triblock copolymer composed of a central hydrophobic chain of poly(propylene oxide) (70 units) flanked by two hydrophilic chains of poly(ethylene oxide) (20 units each). A polymer with the formula HO[CH2CH2O]2O[CH2CH(CH3)O]70[CH2CH2O]2OH. It has a role as a nonionic surfactant."}]