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Synthesis and Properties of the Fluorinated Polyimides

Yongfei Wang

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Abstract

A kind of viscous polyamic acid(PAA) solution was prepared by polycondensation reaction between fluorinated diamine II and pyromellitic dianhydride(PMDA) in polar aprotic organic solvent DMAc,and the corresponding polyimide(PI) film was also obtained by thermal imidization.The properties of the PI film were further studied,and compared with PI(PMDA-ODA).The experimental results show that the fluorinated diamine improves the transparency and solubility of PI and maintains an excellent thermal stability of PI.

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What this paper is about

A kind of viscous polyamic acid(PAA) solution was prepared by polycondensation reaction between fluorinated diamine II and pyromellitic dianhydride(PMDA) in polar aprotic organic solvent DMAc,and the corresponding polyimide(PI) film was also obtained by thermal imidization.The properties of the PI film were further studied,and compared with PI(PMDA-ODA).The experimental results show that the fluorinated diamine improves the transparency and solubility of PI and maintains an excellent thermal stability of PI.

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Available abstract

A kind of viscous polyamic acid(PAA) solution was prepared by polycondensation reaction between fluorinated diamine II and pyromellitic dianhydride(PMDA) in polar aprotic organic solvent DMAc,and the corresponding polyimide(PI) film was also obtained by thermal imidization.The properties of the PI film were further studied,and compared with PI(PMDA-ODA).The experimental results show that the fluorinated diamine improves the transparency and solubility of PI and maintains an excellent thermal stability of PI.

Key concepts: Pyromellitic dianhydride, Polyimide, Diamine, Materials science, Thermal stability, Condensation polymer, Solubility, Solvent

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