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CAS号: 9003-97-8 英文名称: CalciuM polycarbophil 英文同义词: CL272;Carbofil;CARBOPOLEX55;Polycarbofil;Policarbofila;Polycarbophil;Polycarbofil calcico;CALCIUM POLYCARBOPHIL;polycarbophil calcium;Policarbofila [inn-spanish] 中文名称: 聚卡波非钙 中文同义词: 聚卡波非;聚卡波非钙 分子式: (C20H18Ca4O18)mult 分子量: 0 Mol file 溶解度 : Polycarbophil polymers do not dissolve in water but can swell in water to around 1000 times their original volume (and ten times their original diameter) to form gels when exposed to a pH environment above 4–6. Since the pKa of these polymers is 6.0±0.5, the carboxylate groups on the polymer backbone ionize, resulting in electrostatic repulsion between the negative particles, which extends the molecule, adding to the swelling of the polymer.