| 活性聚苯乙烯膜诱导碳酸钙异相成核结晶 |
| Heterophase Crystal Nucleation of CaCO3Induced by a Novel Active Polystyrene Membrane |
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| 关键词: 仿生合成 碳酸钙 两亲嵌段共聚物 聚苯乙烯 |
| 基金项目: |
| Abstract: A novel active polystyrene (PS) membrane was prepared with amphiphilic polystyrene-b-poly(acrylic acid) (PAS) molecules fixed on its surface. The membrane was characterized with FT-IR. The active surface (lower surface) of the membrane could act as a template to induce heterophase crystal nucleation of CaCO3. Optical microscopy and SEM were used to characterize the CaCO3crystals. Crystals with different morphologies (cubic, hexagon and spindle shaped) were found on the active membrane after it induced CaCO3crystallization. The templating effect is consistent with the hydrophile of the active surface characterized by water droplets. Both the templating effect and the hydrophile of the active surface could be regulated by PAS concentration and pH in the membrane preparation. |
| Keywords: biomimetic synthesis CaCO3 block copolymer polystyrene |
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| .活性聚苯乙烯膜诱导碳酸钙异相成核结晶[J].无机化学学报,2004,20(11):1361-1366. |
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