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Adhesion Property of Novel Polyimides Containing Fluorine and Phosphine Oxide Moieties

  • K. U. Jeong (a1), Y. J. Jo (a1), H. M. Knag (a1) and T. H. Yoon (a1)

Abstract

Novel diamine monomers, containing fluorine and phosphine oxide - bis(3-aminophenyl)-3,5-bis(trifluoromethyl)phenyl phosphine oxide (mDA6FPPO) and bis(3-aminophenyl)-4-(trifluoromethyl)phenyl phosphine oxide (mDA3PPO) - were utilized to prepare polyimides with dianhydrides such as 6FDA, BTDA or ODPA by the conventional two-step route, i.e., preparation of poly(amic-acid), followed by solution imidization. Adhesion property of the polyimides was evaluated via a peel test with bare Cu foil, as well as Cr/silane coated Cu foils, and failure surfaces were analyzed by SEM/EDX to elucidate the adhesion mechanism. The polyimides with 3FDAm exhibited the highest Tg, followed by mDAPPO-, mDA3FPPO- and mDA6FPPO-based polyimides, but the mDAPPO-based polyimides exhibited the highest adhesion properties, followed by mDA3FPPO, mDA6FPPO, mDDS and 3FDAm, attributing to phosphine oxide and fluorine moieties.

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Adhesion Property of Novel Polyimides Containing Fluorine and Phosphine Oxide Moieties

  • K. U. Jeong (a1), Y. J. Jo (a1), H. M. Knag (a1) and T. H. Yoon (a1)

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