| 聚酰亚胺/无机物纳米杂化材料的研究I.聚酰亚胺(HQDPA/DMMDA)-TiO2纳米杂化物的合成与表征 |
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| 引用本文： | 童跃进,李秀茹,陈守正,李悦生,丁孟贤.聚酰亚胺/无机物纳米杂化材料的研究I.聚酰亚胺(HQDPA/DMMDA)-TiO2纳米杂化物的合成与表征[J].福建师范大学学报(自然科学版),1999,15(3):42-45. |
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| 作者姓名： | 童跃进 李秀茹 陈守正 李悦生 丁孟贤 |
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| 作者单位： | 1. 福建师范大学化学系,福州,350007
2. 中国科学院长春应用化学研究所,长春,130022 |
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| 基金项目： | 福建省教育厅科研项目;; |
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| 摘 要： | 将钛酸丁酯经乙酸修饰改性和稳定化后在杂化过程中用作ＴｉＯ２前体，采用溶胶－凝胶法由可溶性业胺（ＨＱＤＰＡ／ＤＭＭＤ七经修饰改性的钛酸丁酯溶液混合成与表征进而制得聚酰亚胺－ＴｉＯ２杂化材料，ＸＰＳ分析表明钛酸丁酯已转化成ＴｉＯ２，ＴＥＭ则显示ＴｉＯ２以球状微粒均匀分散在聚酰亚胺基体中，粒径为３０～６０ｎｍ，含１０％ＴｉＯ２的杂化膜是具有高热稳定性与韧性的薄膜，其介电常数为３．５。
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| 关 键 词： | 聚酰亚胺 二氧化钛 溶胶-凝胶化 纳米杂化材料 |
| 修稿时间： | :1999-04-05 |
Study on Polyimide-inorganic Nanocomposite Material I.Preparation and Characterization of Polyimide-TiO2 Nanocomposite Film |
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| Tong Yuejin,Li Xiuru,Chen Shouzheng,Li Yuesheng,Ding Mengxian.Study on Polyimide-inorganic Nanocomposite Material I.Preparation and Characterization of Polyimide-TiO2 Nanocomposite Film[J].Journal of Fujian Teachers University(Natural Science),1999,15(3):42-45. |
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| Authors: | Tong Yuejin Li Xiuru Chen Shouzheng Li Yuesheng Ding Mengxian |
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| Abstract: | A sol gel approach has been developed to prepare polyimide TiO 2 hybrid film from soluble polyimide and modified titanium precursor.XPS measurement indicated that titanium n butoxide had changed into TiO 2.TEM observation also showed that TiO 2 particles were well distributed in polyimide matrix with particle size smaller than 60 nm.The hybrid films with TiO 2 component up to 10% exhibited high thermal stability, good mechanical properties, and possessed a dielectric constant of 3 5. |
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| Keywords: | polyimide titania sol-gel nanocomposite |
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