The effects of cure temperature history on the stability of polyimide films

The effects of cure temperature history on the stability of hinged structure poly (4,4-oxydiphenylene pyromellitimide) (PMDA-ODA) polyimide were studied by dynamic mechanical analysis. The polyimide films were cured under different curing conditions and peeled off by substrate etching. It was found that a proper cure time and temperature ramp rate improves the stability in terms of higher glass transition temperature. Ninety minutes at 375 °C or 200 °C is a beneficial high glass transition temperature. The temperature ramp rate should be between 2 °C/min and 10 °C/min, which is neither too high nor too low.

[1]  R. Benson,et al.  ESR investigations on irradiated polystyrene , 2003 .

[2]  Xiang'an Huang,et al.  Synthesis and Characterization of Novel Polyimides Derived from 1,4‐Bis(4‐aminophenoxymethylene) Cyclohexane (BAMC) and Two Aromatic Dianhydrides , 2008 .

[3]  Y. Chern,et al.  High Subglass Transition Temperatures and Low Dielectric Constants of Polyimides Derived from 4,9-Bis(4-aminophenyl)diamantane , 1998 .

[4]  P. Flory,et al.  The glass temperature and related properties of polystyrene. Influence of molecular weight , 1954 .

[5]  Stephen Z. D. Cheng,et al.  Dianhydride architectural effects on the relaxation behaviors and thermal and optical properties of organo-soluble aromatic polyimide films , 1999 .

[6]  M. Chipara.  On an anomalous kinetic in irradiated polymers around the glass transition temperature , 1997 .

[7]  P. Cebe,et al.  Curing study of a preimidized photosensitive polyimide , 1996 .

[8]  T. Sasaki,et al.  Synthesis and Properties of an Addition-type Imide Oligomer having Pendent Phenylethynyl Groups: Investigation of Curing Behavior , 2006 .

[9]  Jin‐Wook Shin,et al.  Effect of electron beam irradiation on polyimide film , 2008 .

[10]  J. Kardos,et al.  Crosslinking characterization of a polyimide: AFR700B , 1997 .

[11]  A. Schouten,et al.  Electron-Induced Vibrational Spectroscopy. A New and Unique Tool To Unravel the Molecular Structure of Polymer Surfaces , 1991 .

[12]  C. P. Stephens,et al.  Dynamical mechanical analysis of proton beam irradiated polyimide , 2005 .