High Optical Transparency and Low Dielectric Constant of Organosoluble Poly(aryl ether amides) Based on 1, 2-Bis (4-amino-2-trifluoromethylphenoxy) benzene and Aromatic Dicarboxylic acids
High Optical Transparency and Low Dielectric Constant of Organosoluble Poly(aryl ether amides) Based on 1, 2-Bis (4-amino-2-trifluoromethylphenoxy) benzene and Aromatic Dicarboxylic acids
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基于 1, 2-双（4-氨基-2-三氟甲基苯氧基）苯和芳香族二羧酸的有机可溶性聚（芳基醚酰胺）的高光学透明度和低介电常数
DOI：
10.1080/10601320903397184
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发表时间：
2010-01-01
影响因子：
2.5
通讯作者：
Jiang, Jianming
中科院分区：
文献类型：
--
作者：
Li, Penghui;Wang, Chenyi;Jiang, Jianming
以含三氟甲基的芳香族二胺1，2-bis(4-amino-2-trifluoromethylphenoxy)benzene(1)，与多种芳香族二元酸为原料，通过磷酸化缩聚反应合成了一系列新型含氟聚芳醚酰胺(PEAS)。所合成的含氟豌豆在N-甲基-2-吡咯烷酮(NMP)、二甲基亚砜(DMSO)和四氢呋喃(THF)等多种极性有机溶剂中表现出较高的溶解度。用DMAc溶剂浇铸可以很容易地制备柔韧的聚合物薄膜。PEAS薄膜具有较高的光学透明性，截止波长为336~357 nm，力学性能良好，拉伸强度为78.4Mpa~104.8 Mpa，断裂伸长率为5.4~10.3%。它们的玻璃化转变温度在227-244摄氏度之间，表现出良好的热稳定性，在氮气气氛中，10%的重量损失温度在453-464摄氏度之间。同时，制得的PEAS薄膜在1 MHz下的介电常数为2.42-2.80，吸湿率为1.27-2.36%。由于它们的性质，聚酰胺可以被认为是工程微电子和光电材料。
A series of novel fluorinated poly(aryl ether amide)s(PEAs) were prepared from an aromatic diamine containing trifluoromethyl group ( CF3), 1,2-bis(4-amino-2-trifluoromethylphenoxy)benzene(1),with various aromatic dicarboxylic acids using the phosphorylation polycondensation. The fluorinated PEAs were obtained in almost quantitative yields with inherent viscosities ranging from 0.55 to 0.78 dl/g. All the PEAs showed high solubility in many polar organic solvents such as N-methyl-2-pyrrolidinone (NMP), dimethyl sulfoxide (DMSO) and tetrahydrofuran (THF) and so on. Flexible and tough polymer films could be easily prepared by casting from DMAc solvent. The PEAs films exhibited high optical transparency with a cutoff wavelength of 336-357 nm and good mechanical properties with tensile strengths of 78.4-104.8 MPa and elongations at break of 5.4-10.3%. They showed high glass transition temperatures in the range of 227-244 degrees C. They also exhibited good thermal stability, the 10% wt loss temperatures from 453 to 464 degrees C in nitrogen atmosphere. Meanwhile, the obtained PEAs films possessed low dielectric constants of 2.42-2.80 at 1 MHz and low moisture absorption (1.27-2.36%). Due to their properties, the polyamides could be considered as engineering microelectronic and photoelectric materials.