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| 复合气凝胶RHF的制备及反应历程研究 | |
| 引用本文： | 王金凤,高涛,王朝阳,唐永建,刘伟民.复合气凝胶RHF的制备及反应历程研究[J].材料导报,2006,20(5):142-144. |
| 作者姓名： | 王金凤 高涛 王朝阳 唐永建 刘伟民 |
| 作者单位： | 1. 四川大学原子与分子物理所,成都,610065;中国工程物理研究院激光聚变研究中心,绵阳,621900 2. 四川大学原子与分子物理所,成都,610065 3. 中国工程物理研究院激光聚变研究中心,绵阳,621900 |
| 基金项目： | 国家科技攻关项目，中国科学院资助项目 |
| 摘 要： | 通过分析间/对苯二酚-甲醛复合气凝胶反应体系的紫外吸收光谱,推断了该体系的反应历程应该是:间苯二酚与甲醛发生加成反应生成羟甲基化合物,而对苯二酚不参与跟甲醛的加成反应,但是,间苯二酚和对苯二酚的酚环上未被取代的活泼氢共同参与跟羟甲基之间的缩聚反应,参与凝胶核的形成,凝胶核继续生长并相互交联形成纳米网络结构.为进一步增强该推论的可靠性,研究了反应体系的红外光谱(FTIR)和透射电镜(TEM)图像. |
| 关 键 词： | 紫外光谱 红外光谱 复合气凝胶 |
Study on the Reaction Process of the Composite Aerogel RHF by Ultraviolet-visible Spectroscopic Method |
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| WANG Jinfeng,GAO Tao,WANG Chaoyang,TANG Yongjian,LIU Weimin.Study on the Reaction Process of the Composite Aerogel RHF by Ultraviolet-visible Spectroscopic Method[J].Materials Review,2006,20(5):142-144. | |
| Authors: | WANG Jinfeng GAO Tao WANG Chaoyang TANG Yongjian LIU Weimin |
| Affiliation: | 1 .Institute of Atomic and Molecular Physics, Sichuan University,Chengdu 610065; 2. Research Center of Laser Fusion, China Academy of Engineering Physics,Mianyang 621900 |
| Abstract: | After analyzing the UV-spectra of RHF composite organic aerogels, the course of the reaction in the mixed solution with resorcine, hydroquinone and formaldehyde is concluded to be that hydroquinone and formaldehyde can not react to give birth to hydroxylmethylene on the used condision but resorcin and formaldehyde can do. Conden- sation reaction exists on hydroxylmethylenes and the remainder active hydrogen of the hydroxybenzene phenyl. And dusters form because the bigger particulates go on to grow up,and then clusters are coupled to come into being a nanonetlike framework. At the same time, the infrared spectra and TEM picture of reaction system are used to prove the conclusion credible. |
| Keywords: | UV spectrum infrared spectrum composite aerogel |
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