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Novel polyfluorinated polyimides derived from alpha,alpha-bis(4-amino-3,5-difluorophenyl)phenylmethane and aromatic dianhydrides: Synthesis and characterization
Zhao, Xiaojuan; Liu, Jingang; Yang, Haixia; Fan, Lin; Yang, Shiyong
2008-03-01
Source PublicationEUROPEAN POLYMER JOURNAL
ISSN0014-3057
Volume44Issue:3Pages:808-820
AbstractA novel aromatic diamine containing bulky lateral phenyl unit and fluorine groups ortho-substituted to the amino groups in the structure, alpha,alpha-bis(4-amino-3,5-difluorophenyl)phenylmethane (4FMA) was synthesized and characterized. 4FMA was polymerized with four aromatic dianhydrides, to afford a series of polyimides (PIs) via a one-step high-temperature polycondensation procedure. All the PIs were amorphous and showed good solubility not only in polar aprotic solvents, but in many common solvents, such as cyclopentanone and tetrahydrofuran. The soluble polymers formed flexible, tough and transparent films. The films had a tensile strength, elongation at break, and tensile modulus in the ranges 85107 MPa, 4-7%, 1.7-2.8 GPa, respectively. The polyimides also exhibited high-T-g (292-338 degrees C), good thermal stability, good dielectric strength, low dielectric constants, and low water uptakes due to the introduction of the polyfluorinated substituents in the polymer backbone. As expected, the PI films showed good transparency in the UV-Vis light region with cutoff wavelength as low as 318 nm and transmittance higher than 60% at 450 nm. PI-4 derived from 4FMA and fluorinated dianhydride 6FDA exhibited low light-absorption in the near-infrared region, especially at the optocommunication wavelength of 1310 nm and 1550 nm. The remarkable combined properties indicate their potential applications in microelectronic and optoelectronic fabrications. (C) 2007 Elsevier Ltd. All rights reserved.
KeywordPolyimides Fluorine Transparency Solubility Thermal Stability Optoelectronics
DOI10.1016/j.eurpolymj.2007.12.016
Indexed BySCI
Language英语
WOS IDWOS:000255604600026
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64820
Collection中国科学院化学研究所
Corresponding AuthorLiu, Jingang
AffiliationChinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Xiaojuan,Liu, Jingang,Yang, Haixia,et al. Novel polyfluorinated polyimides derived from alpha,alpha-bis(4-amino-3,5-difluorophenyl)phenylmethane and aromatic dianhydrides: Synthesis and characterization[J]. EUROPEAN POLYMER JOURNAL,2008,44(3):808-820.
APA Zhao, Xiaojuan,Liu, Jingang,Yang, Haixia,Fan, Lin,&Yang, Shiyong.(2008).Novel polyfluorinated polyimides derived from alpha,alpha-bis(4-amino-3,5-difluorophenyl)phenylmethane and aromatic dianhydrides: Synthesis and characterization.EUROPEAN POLYMER JOURNAL,44(3),808-820.
MLA Zhao, Xiaojuan,et al."Novel polyfluorinated polyimides derived from alpha,alpha-bis(4-amino-3,5-difluorophenyl)phenylmethane and aromatic dianhydrides: Synthesis and characterization".EUROPEAN POLYMER JOURNAL 44.3(2008):808-820.
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