中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Thermal imidization process of polyimide film: Interplay between solvent evaporation and imidization

文献类型:期刊论文

作者Chen, Wenjuan1,3; Chen, Wei2,3; Zhang, Baoqing1,3; Yang, Shiyong2,3; Liu, Chen-Yang1,3
刊名POLYMER
出版日期2017-01-27
卷号109页码:205-215
关键词Polyimide Imidization Characterizations
英文摘要The thermal imidization process of 1,2,4,5-benzenetetracaboxylic (PMDA)/4,4'-diamnodiphenyl ether (4,4'-ODA) solutions in N-methyl-2-pyrrolidone (NMP) from polyimide (PI) precursor, poly (amic acid) (PAA), was systematically investigated through a series of characterization methods, such as Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA). At the low-temperature drying stage, mechanical properties and T-g of polymer films were increased as a result of solvent removal. TGA method was used to quantitatively monitor the evaporations of hydrogen-bonded solvents on PAA and of the dehydration during the imidization reaction that occurred above 150 degrees C. During the imidization stage, the interplay between the solvent evaporation and the imidization was the key factor that determined the enhancement of the mechanical properties and T-g. The degree of imidization approached 94% when the temperature was increased to 250 degrees C. A "complete" imidization was achieved by annealing between 350 and 400 degrees C. The enhancement in the mechanical properties of final PI films may result from the increased T-g and the crystallized structure formed during the annealing stage. (C) 2016 Elsevier Ltd. All rights reserved.
语种英语
源URL[http://ir.iccas.ac.cn/handle/121111/38073]  
专题化学研究所_分子识别与功能实验室
作者单位1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Chem & Mat, Beijing Natl Lab Mol Sci,CAS Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Lab Adv Polymer Mat, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Chen, Wenjuan,Chen, Wei,Zhang, Baoqing,et al. Thermal imidization process of polyimide film: Interplay between solvent evaporation and imidization[J]. POLYMER,2017,109:205-215.
APA Chen, Wenjuan,Chen, Wei,Zhang, Baoqing,Yang, Shiyong,&Liu, Chen-Yang.(2017).Thermal imidization process of polyimide film: Interplay between solvent evaporation and imidization.POLYMER,109,205-215.
MLA Chen, Wenjuan,et al."Thermal imidization process of polyimide film: Interplay between solvent evaporation and imidization".POLYMER 109(2017):205-215.

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来源:化学研究所

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