耐高溫透明呫噸骨架聚醯亞胺的研究－呫噸四甲酸二酐衍生物的合成

Study on High Temperature Resistant Transparent Polyimide Based on Xanthene Skeleten－The Synthesis of Xanthene Tetracarboxylic Dianhydride Derivatives

徐偉國(WEI-KUO HSU)

指導教授 ： 蔡祐輔

中原大學/理學院/化學系/碩士(2023年)

https://doi.org/10.6840/cycu202301035

摘要

本論文旨在耐高溫透明聚醯亞胺的開發研究。芳香族聚醯亞胺(Polyimide,PI)薄膜具有優異的力學性能、高耐熱性能和耐紫外輻照
、耐腐蝕的穩定化學性質，以及耐高電壓強度等性能特點，作為工程塑料廣泛應用于工業領域。但是，此類型的PI膜通常會因其高度共軛的分子結構而使得材料顏色較深和透光度差，因此具有高透明
性聚醯亞胺為一重要的研究主題。
本研究提出一種具有氟化剛性結構的四羧酸二酐的合成方法，將3，4-二甲基苯酚與含氟酮類化合物，在三氟甲磺酸作為強酸催化劑的條件下進行縮合反應，得到四甲基呫噸衍生物再進行氧化反應
，得到呫噸四羧酸衍生物。將呫噸四羧酸衍生物進行羧基脫水縮合反應得到呫噸四羧酸二酐衍生物，即為所述具有氟化剛性結構的四
羧酸二酐。

關鍵字

聚醯亞胺

並列摘要

This thesis is aimed at the studies high temperature resistant and transparent polyimide. Fully aromatic polyimide (PI) film with excellent mechanical properties, high heat resistances UV, radiation resistances stable ,corrosion resistance, and high voltage strength resistance to widely used in the industrial field of engineering plastic.
But, this types of PI film usually suffers from darker color and poor light transmittance,with highly conjugated molecular structure. This is a important study topic for aromatic polyimides with high transparent.
This studies proposes a synthesis method of tetracarboxylic dianhydride with fluorinated rigid structure. Its condensaing a 3,4-dimethylphenol and the fluorine-containing ketones under the condition of trifluoromethanesulfonic acid as a strong acid catalyst to obtain tetramethylxanthon derivatives,and then by oxidation reaction to obtain
the oxanthane tetracarboxylic acid derivatives.
The carboxyl groups of the xanthene tetracarboxylic acid derivatives under dehydration and condensation is carried out to obtain the xanthene tetracarboxylic dianhydride derivatives,which are the tetracarboxylic dianhydrides with a fluorinated rigid structure.

並列關鍵字

polyimide

參考文獻

1. 金進興, 工業材料 , 六月, 1996, 114.

2. Tullos, G. L.; Mathias, L. J.; Langsam, M. J. Polym. Sci. A Polym. Chem. 1999, 37, 1183-1188.

3. Yang, C. P.; Chen, R. S.; Hsu, M. F. Colloid. Polym. Sci. 2002, 280, 2995-3002.

4. Rao, V. L.; Prabhakaran, P. V.; Ninan, K. N. Eur. Polym. J. 2003, 39, 104-405.

5. Sroog, C. E. J. Polym. Sci. Macromol. Rev. 1976, 11, 161.