Development of polyimides for opto-electronic integrated circuit

光电集成电路用聚酰亚胺的研制

• 批准号: 09651004
• 负责人: MATSUMOTO Toshihiko
• 金额: $ 2.05万
• 依托单位: Tokyo Institute of Polytechnics
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09651004/
• 关键词: polyimides; opto-electronic integrated circuit; colorless polyimide; aliphatic polyimides; dielectric constants; refractive index; molecular orbital calculation; charge transfer; 光集積回路; 全脂肪族ポリイミド; 無色透明; 複屈折率; 感光性; 全脂肪族

From the molecular orbital calculation of the model compounds, it was evident that a strong intramolecular charge transfer characterized the first excited state, and this nature based on the predominant HOMO-LUMO transition contributed to the coloration of aromatic polyimides. Various kinds of tetracarboxylic dianhydride with a polyalicyclic structure were synthesized and polycondensated with aromatic or aliphatic diamines. The fully imidized aliphatic polyimide films were soluble in organic solvents such as DMAc. The polyimides had good thermal stability with the 5% weight loss temperature range of 450-500℃ and exhibit higher Tg's over 290℃. The flexible polyimide films possessed a tensile modulus range of 1.5-2.6 Gpa and a tensile strength range of 52-96 Mpa. These films were entirely colorless, and the transparencies in the visible region were over 85%. The polyimides had an average refractive index range of 1.52 to 1.62, and the birefringencies were nearly zero. The dielectric constants that were estimated from the refractive index according to the modified Maxwell equation were 2.55-2.89. These polyimides may be of interest for microelectronics or opto-electronics applications.

从模型化合物的分子轨道计算中可以明显看出，第一激发态具有很强的分子内电荷转移特征，这种基于HOMO-LUMO跃迁的性质有助于芳香聚酰亚胺的着色。合成了多种具有多脂环结构的四羧酸二酐，并与芳香族或脂肪族二胺缩聚。完全亚酰化的脂肪族聚酰亚胺薄膜可溶于DMAc等有机溶剂。在450 ~ 500℃范围内，聚酰亚胺的热稳定性较好，失重率为5%，在290℃以上表现出较高的Tg。柔性聚酰亚胺薄膜的拉伸模量为1.5 ~ 2.6 Gpa，拉伸强度为52 ~ 96 Mpa。这些胶片完全无色，可见光区的透明度在85%以上。聚酰亚胺的平均折射率为1.52 ~ 1.62，双折射率几乎为零。根据修正的麦克斯韦方程，由折射率估算出介电常数为2.55 ~ 2.89。这些聚酰亚胺可能对微电子或光电子应用感兴趣。

项目成果

T.Matsumoto,T.Kurosaki: "Advances in Polyimides and Low Dielectric Polymers"Society of Plastics Engineers,Mid Hudson Section. 91-115 373 (1999)

T.Matsumoto、T.Kurosaki：“聚酰亚胺和低介电聚合物的进展”塑料工程师学会，Mid Hudson 分会。

T.Matsumoto et.al.: "Synthesis and Properties of Novel Photosensitive Polyimides Containing Chalcone" J.Polym.Sci.,Part A. (in press).

T.Matsumoto 等人：“含有查耳酮的新型光敏聚酰亚胺的合成和性能”J.Polym.Sci.，A 部分（待出版）。

T.Matsumoto, Y.Yamada, and N.Takeshima: "A Polyalicyclic Polyimide Bearing Spiro Structure"J. Photopolym. Sci. & Technol.. 13(in press). (2000)

T.Matsumoto、Y.Yamada 和 N.Takeshima：“一种多脂环聚酰亚胺轴承螺环结构”J。

T.Matsumoto: "Research Developments in Polymer Science"Transworld Research Network. (in press)

T.Matsumoto：“高分子科学的研究进展”跨世界研究网络。

T.Matsumoto: "The Origin of Coloration in Aromatic Polyimides -An Approach from Quantum Chemistry-"J. Photopolym. Sci. & Technol.. 12. 231-236 (1999)

T.Matsumoto：“芳香族聚酰亚胺着色的起源 - 量子化学的方法 -”J.