Abstract
Novel fluorinated aromatic polyimides exhibiting very low dielectric constants were prepared from aromatic dianhydrides and aromatic diamines containing phenylene ether and perfluorobiphenyl units. Polycondensations were performed in 1-methyl-2-pyrrolidinone at room temperature for 18 h, giving poly(amic acid)s with inherent viscosities up to 0.65 dL/g. The poly(amic acid)s were converted to the corresponding polyimides by thermal treatment at 300 °C under nitrogen. The polyimides show low dielectric constants (2.65–2.68) and high thermal stability (5% weight loss temperatures are around 450 °C).
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Watanabe, Y., Shibasaki, Y., Ando, S. et al. Synthesis and Characterization of Novel Low-k Polyimides from Aromatic Dianhydrides and Aromatic Diamine Containing Phenylene Ether and Perfluorobiphenyl Units. Polym J 38, 79–84 (2006). https://doi.org/10.1295/polymj.38.79
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DOI: https://doi.org/10.1295/polymj.38.79
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