Poloxamers are amphiphilic triblock copolymers with the general formula HO–(EO)_a–(PO)_b–(EO)_a–H (EO = ethylene oxide, PO = propylene oxide). In water they self-assemble into micelles and, for some grades at sufficient concentration, form thermoreversible gels. Commercial families include ...
危险品化学品经营许可证（带存储）