Synthesis of novel biphenyl-fused alicyclic tetracarboxylic dianhydride and its performance in thermostable and transparent colorless polyimides

被引：0

作者：

Zhou, Di ^{[1
]}

Kong, Ling-lu ^{[1
]}

Liu, Shu-mei ^{[1
]}

Yuan, Yan-chao ^{[1
]}

Ma, Yu-guang ^{[2
]}

Huang, Ming-jun ^{[3
]}

Mo, Yue-qi ^{[1
,2
,4
]}

Qin, Dong-huan ^{[2
]}

Zhao, Jian-qing ^{[1
,4
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou, Guangdong, Peoples R China

[2] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China

[3] South China Univ Technol, Sch Emergent Soft Matter, South China Adv Inst Soft Matter Sci & Technol, Guangzhou, Peoples R China

[4] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2024年 / 141卷 / 05期

基金：

中国国家自然科学基金;

关键词：

aryl-fused alicyclic tetracarboxylic dianhydrides; high thermal stability; polyimides; transparent; THERMAL-EXPANSION; FILMS;

D O I：

10.1002/app.54938

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Biphenyl fused alicyclic tetracarboxylic dianhydride, 6,6 ',7,7 '-tetracarboxylic dianhydride-5,5 ',6,6 ',7,7 ',8,8 '-octahydro-2,2 '-binaphthalene (OHBNDA) was successfully synthesized from biphenyltetracarboxylic dianhydride (BPDA) through hydrolysis, reduction, bromination, and Diels-Alder reaction. Three OHBNDA-based polyimides (PIs) were synthesized by one-step polycondensation at high temperature with 9,9-bis(4-aminophenyl)fluorene (BAFL), 2,2 '-bis(trifluoromethyl)-4,4 '-diaminobiphenyl (TFMB), and 4,4 '-diamino-2,2 '-dimethyl-1,1 '-biphenyl (m-TolDA) diamines, respectively. These PIs have moderate molecular weights and good solubility in polar organic solvents, such as N,N-dimethylformamide, dimethylacetamide (DMAc), and dimethyl sulfoxide (DMSO). OHBNDA-TFMB, OHBNDA-m-TolDA, and OHBNDA-BAFL display glass transition temperatures (T(g)s) of 309, 329, and 377 degrees C from differential scanning calorimetry (DSC) curves, and the decomposition temperatures at 5% weight loss (T-d5) of as high as 522, 507, and 548 degrees C under nitrogen, respectively. Meanwhile, these PI films also show good optical transparency with the cut-off wavelength <315 nm and the transmittance >75% at 400 nm. These results confirm that aryl-fused alicyclic tetracarboxylic dianhydrides can afford transparent/colorless PIs with high thermal stability, especially the higher decomposition temperatures than the wholly alicyclic dianhydrides.

引用

页数：11