[1] Lin Baoping, Qian Ying, Pan Ying, Yuan Chunwei, et al. Synthesis and characterization of copolyimides frombis(3, 4-dicarboxyphenyl)dimethylsilane dianhydride [J]. Journal of Southeast University (English Edition), 2004, 20 (2): 216-220. [doi:10.3969/j.issn.1003-7985.2004.02.019]

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Synthesis and characterization of copolyimides frombis(3, 4-dicarboxyphenyl)dimethylsilane dianhydride()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

20

Issue:

2004 2

Page:

216-220

Research Field:

Chemistry and Chemical Engineering

Publishing date:

2004-06-30

Info

Title:

Synthesis and characterization of copolyimides frombis(3, 4-dicarboxyphenyl)dimethylsilane dianhydride

Author(s):

Lin Baoping¹;  Qian Ying¹;  Pan Ying¹;  Yuan Chunwei²

¹Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
²Key Laboratory of Molecular and Bio-molecular Electronics of Ministry of Education, Southeast University, Nanjing 210096, China

Keywords:

bis(3;  4-dicarboxyphenyl)dimethylsilane dianhydride;  polyimide;  synthesis

PACS:

TQ323.7

DOI:

10.3969/j.issn.1003-7985.2004.02.019

Abstract:

The silicon-containing poly(amic acid)s were synthesized from bis(3, 4-dicarboxyphenyl)dimethylsilane dianhydride(SIDA), pyromellitic dianhydride(PMDA)and 4, 4′-oxydianiline(4, 4′-ODA)in N, N-dimethylacetamide(DMAc). The poly(amic acid)films were obtained by solution-cast method from DMAc solutions and thermally converted into transparent, flexible and tough polyimide films. The wide-angle X-ray diffraction diagrams revealed that all the polyimides possessed amorphous character, and the regulation of those polyimides were decreased with the increase of the molar ratio of SIDA to PMDA. Differential scanning calorimeter measurements showed that the introduction of SIDA to polyimide backbone would make glass transition temperature shift to lower temperature. Thermogravimetric analyses indicated that the silicon-containing polyimides lowered decomposition temperature as compared with PMDA/4, 4′-ODA polyimides. However, UV-visible transmission and reflection spectra showed that the optical transparency of silicon-containing polyimide thin films was superior to that of PMDA/4, 4′-ODA polyimide thin films.

References:

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[10] Pan Y, Lin B P, Qian Y, et al. Synthesis of a silicon-containing aromatic dianhydride and its polyimide [J]. J of Functional Polymers, 2003, 16(2): 225-228.(in Chinese)

Memo

Memo:

Biography: Lin Baoping(1958—), male, associate professor, lbp@seu.edu.cn.

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