| 嵌段共聚物对SiO2溶胶-凝胶过程的修饰行为 | |
| Behavior of Block Copolymer in SiO2 Sol-Gel Processing | |
| 摘要: | |
| 关键词: 溶胶-凝胶 聚氧乙烯醚-聚氧丙烯醚-聚氧乙烯醚嵌段共聚物 SiO2 结构与形貌控制 | |
| 基金项目: 国家自然科学基金资助项目(No.29625307) | |
| Abstract: By means of TEM, SDP, 29Si NMR etc analysis, the behavior of the Polyethylene Oxide (PEO)-Polypropylene Oxide (PPO)-Polyethylene Oxide (PEO) as organic modifier on SiO2 sol-gel in the basic media was investigated; the effects on sol particle growth and network &morphology control were discussed in detail, and then the model on sol particle growing was suggested on the basis of growth unit theory of anion coordinate polyhedron. The results showed that PEO-PPO-PEO additive limited particle growth but also restrained particle agglomeration and then made the SiO2 sol high stable. It was found that the action of EPE was similar to that of organic structure-directing agent and made the sol cluster cross linked branch network. | |
| Keywords: sol-gel PEO-PPO-PEO(EPE) SiO2 network and morphology control | |
| 投稿时间：1999-04-01 修订日期：1999-09-14 | |
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| 孙继红,巩雁军,王树国,范文浩,吴东,孙予罕,杨年华,周建伟,岳勇.嵌段共聚物对SiO2溶胶-凝胶过程的修饰行为[J].无机化学学报,2000,16(1):131-135. | |
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