SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE

Qiu-shuang Gao; Guo-feng Tian; Sheng-li Qi; Zhan-peng Wu; De-zhen Wu

doi:10.1007/s10118-013-1187-x

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SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE

PAPER | Updated：2023-01-03

- SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE
- SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE
- Chinese Journal of Polymer Science 2013年31卷第3期页码：427-433
- Affiliations：
  
  State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Author bio：
  
  **De-zhen Wu (武德珍), E-mail: wdz@mail.buct.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China(21234006)
- DOI：10.1007/s10118-013-1187-x
  中图分类号：
- 收稿：2012-05-04，
  
  修回：2012-06-04，
  
  录用：2012-06-05，
  
  纸质出版：2013-03
- Accepted：
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Qiu-shuang Gao, Guo-feng Tian, Sheng-li Qi, 等. SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE[J]. Chinese Journal of Polymer Science, 2013,31(3):427-433.

Qiu-shuang Gao, Guo-feng Tian, Sheng-li Qi, et al. SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE[J]. Chinese Journal of Polymer Science, 2013, 31(3): 427-433.
Qiu-shuang Gao, Guo-feng Tian, Sheng-li Qi, 等. SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE[J]. Chinese Journal of Polymer Science, 2013,31(3):427-433. DOI： 10.1007/s10118-013-1187-x.

Qiu-shuang Gao, Guo-feng Tian, Sheng-li Qi, et al. SYNTHESIS AND CHARACTERIZATION OF AMINO FUNCTIONALIZED LADDER-LIKE POLYSILSESQUIOXANES AND THEIR HYBRID FILMS WITH POLYIMIDE[J]. Chinese Journal of Polymer Science, 2013, 31(3): 427-433. DOI： 10.1007/s10118-013-1187-x.

摘要

Abstract

Ladder-like polysilsesquioxanes (LPSQs) with different amino contents have been synthesized by controlling of the dosage of Pd/C catalyst. The concentration and activity of amino groups were investigated by Fourier transform infrared spectroscopy. Polyimide (PI)/LPSQ hybrid films have been prepared by incorporating of the obtained LPSQs with different amino contents into PI matrix

respectively. The interfacial interactions between PI matrix and LPSQ were studied with scanning electron microscopy and X-ray photoelectron spectroscopy

meanwhile the thermal and mechanical properties of the hybrid films were studied using dynamic mechanical analysis and tensile tests. The results indicate that the functionality of LPSQ has great effects on the interfacial interactions and the properties of hybrid films. With the increase of amino content

both the interfacial interactions and the cross-linking density of hybrids enhanced

which results in the decline of surface silicon concentration

increase of Young's modulus and drop of elongation at break. Excessive amino content makes the hybrid films brittle and leads to incomplete imidization.

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