Thermal, soluble, and hydrophobic properties of polyimides derived from 4-(4-diethylamino)phenyl-2,6-bis(4-(4-aminophenoxy)phenyl)pyridine

被引：6
|
作者：
Liu, Chanjuan [1 ,2 ]
Li, Hua [1 ,2 ]
Mei, Mei [1 ,2 ]
Li, Yuqi [1 ,2 ]
Wei, Chun [1 ,2 ]
Huang, Xiaohua [1 ,2 ,3 ]
机构：
[1] Guilin Univ Technol, Guangxi Key Lab Opt & Elect Mat & Devices, Guilin 541004, Peoples R China
[2] Guilin Univ Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China
[3] Hezhou Univ, Guangxi Key Lab Calcium Carbonate Resources Compr, Hezhou 542899, Peoples R China
来源：
JOURNAL OF POLYMER RESEARCH | 2019年 / 26卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Polyimides; Thermal stability; Solubility; Hydrophobicity; Pyridine ring; FLUORINATED POLYIMIDES; OPTICAL TRANSPARENCY; AROMATIC POLYIMIDES; UNITS SYNTHESIS; LIGHT-COLOR; SOLUBILITY; PYRIDINE; DIANHYDRIDE; NONCOPLANAR; PROTONATION;
D O I：
10.1007/s10965-019-1759-8
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A novel aromatic diamine monomer, 4-(4-diethylamino)phenyl-2,6-bis(4-(4-aminophenoxy)phenyl)pyridine (EPAPP), containing pyridine ring units, ether linkage moieties and diethylaminophenyl pendent groups, has been designed and synthesized through three-step methods, and then used to prepare for a series of polyimides with commercial aromatic dianhydrides via two-step solution polycondensation. The resulting polyimides showed good solubility in common polar solvents, such as NMP, DMF, DMSO. They exhibited high thermal stability with the glass transition temperature (T(g)s) more than 254 degrees C, and the temperature of 10% weight loss over 544 degrees C with more than 64% residue at 800 degrees C under nitrogen. They presented excellent hydrophobic properties with the contact angle in the range of 81.9-91.9 degrees. In addition, the results of Wide-angle X-ray Diffraction (WAXD) indicated that these polymers revealed an amorphous structure.
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页数：9
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