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【 在 oldce (wangwang) 的大作中提到: 】
: EO: is poly (ethylene oxide)-(CH2CH2O), PO: is poly (propylene oxide)-(CH2CHO)
:                                                                           CH3  
: usually we call it surfactant or triblock copolymer or Amphiphilic Copolymers (表面活性记，三前端共聚聚合物，两性聚合物). the comercial name of this kind of polymer is Pluronics or Poloxamers. P123 or F127 are two kinds of products of Pluronics, the difference is the number of repeat unit (EO or PO).
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FROM 211.68.3.*