摘要
合成3,5-双（4-氨基苯氧基）苯甲酸（35BAPBA）。其方法为3,5-二羟基苯甲酸（35DHBA）和对氯硝基苯（PCNB）通过缩合反应，合成得到了3,5-双（4-硝基苯氧基）苯甲酸（35BNPBA）；然后，进一步还原，得到3,5-T2（4-氨基苯氧基）苯甲酸（35BAPBA），基于35BAPBA单体，制得多种结构的含羧基芳香族聚酰亚胺薄膜，并对这些薄膜的性能进行研究。制得的3,5-双（4-氨基苯氧基）苯甲酸（35BAPBA）的熔点为245．8℃，且纯度高。各类薄膜的透过率均可达80％以上，具有良好的紫外吸收性能；吸水性均小于3％，具有优异的疏水性能；其拉伸强度在15～56MPa之间。
The 3,5-bis（4-aminophenoxy） benzoic acid （35BAPBA） is synthesized. Firstly, the 3,5-bis（4-nitrophenoxy） benzoic acid （35BNPBA） is synthesized by condensation reaction of 3,5-dihydroxy-benzoic acid （35DHBA） and hydroquinone（PCNB）; then the 3,5-bis（4-aminophenoxy） benzoic acid （35BAPBA） is obtained by further reduction. Based on 35BAPBA monomer, a variety of aromatic polyimide films containing carboxyl groups in structure are synthesized, and their performances are studied. The melting point of prepared 3,5-bis（4-aminophenoxy） benzoic acid （35BAPBA） with high purity is 245.8 ℃. All kinds of thin films have high transmissivity which are above 80%, they have good ultraviolet absorption performances; the water absorptions of films are less than 3%, which is declared that they have excellent hydrophobic performances; the tensile strength of films are between 15 to 56MPa.
出处
《化学与粘合》
CAS
2012年第3期18-22,共5页
Chemistry and Adhesion
