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Highly soluble phenylethynyl terminated oligoimides derived from 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindane, 4,4 '-oxydianiline and mixed thioetherdiphthalic anhydride isomers
Li, Hanyuan; Wang, Wei; Chen, Guofei; Liu, Yinfeng; Fang, Xingzhong
2018
Source PublicationJOURNAL OF POLYMER RESEARCH
Volume25Issue:1
AbstractNovel highly soluble phenylethynyl-endcapped oligoimides derived from mixed thioetherdiphthalic anhydride isomers (m-TDPA) and 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindane (DAPI), 4,4'-oxydianiline (4,4'-ODA) with 4phenylethynylphthalic anhydride (PEPA) as a reactive endcapping agent were synthesized. The calculated molecular weights of all the oligoimides were 2500 g.mol(-1). The effect of the mole ratio of DAPI/4,4'-ODA on solubility and melt viscosity of oligoimides as well as the thermal and mechanical properties of cured polyimide films was investigated. Experimental results indicated that DAPI greatly improved the solubility (>30 wt.%) of the oligoimides in low boiling points solvents when the content ofDAPI was more than 10 mol% per total diamine. All the oligoimides exhibited very good processabilitywith minimum melt viscosity lower than 60 Pa.s at about 330 degrees C. Tough and brown films were obtained after thermally cured at 370 degrees C for 1 h and dynamic mechanical analysis (DMA) showed that glass transition temperatures of the cured films increased up to 340 degrees C with the increasing content of DAPI. However, the thermal stability and mechanical properties decreased with the increase of DAPI content. The temperature of 5% weight loss was higher than 470 degrees C in both air and N-2 atmosphere obtained by thermogravimetric analysis (TGA). And the tensile strengths of the cured films were about 60 MPa.
KeywordImide Oligomers Aromatic Polyimides 2 Adhesive Properties 3 Composites 3' Temperature 4'-biphenyltetracarboxylic Dianhydride Resins Stability Peti-298 Matrix
Subject AreaScience & Technology - Other Topics ; Materials Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16884
Collection2018专题
Recommended Citation
GB/T 7714
Li, Hanyuan,Wang, Wei,Chen, Guofei,et al. Highly soluble phenylethynyl terminated oligoimides derived from 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindane, 4,4 '-oxydianiline and mixed thioetherdiphthalic anhydride isomers[J]. JOURNAL OF POLYMER RESEARCH,2018,25(1).
APA Li, Hanyuan,Wang, Wei,Chen, Guofei,Liu, Yinfeng,&Fang, Xingzhong.(2018).Highly soluble phenylethynyl terminated oligoimides derived from 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindane, 4,4 '-oxydianiline and mixed thioetherdiphthalic anhydride isomers.JOURNAL OF POLYMER RESEARCH,25(1).
MLA Li, Hanyuan,et al."Highly soluble phenylethynyl terminated oligoimides derived from 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindane, 4,4 '-oxydianiline and mixed thioetherdiphthalic anhydride isomers".JOURNAL OF POLYMER RESEARCH 25.1(2018).
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