Soluble poly(p-phenylene biphenyltetracarboxamic acid) precursor was converted to the polyimide by thermal imidization at various conditions. The structure evolution being occurred during its thermal imidization over 25-400 degrees C was investigated as a function of imidization temperature and time by X-ray scattering with synchrotron radiation sources of Pohang Accelerator Laboratory in Korea and with conventional radiation sources. In addition, properties in the polyimide films were investigated by dynamic mechanical thermal analysis, stress-strain analysis, prism coupling, and residual stress analysis.
A time-resolved infrared spectroscopic investigation was made into the thermal imidization behavior ...
Using a bilayer bending technique, intrinsic stress and overall residual stress were measured for th...
A soluble aromatic poly(amic acid) film was converted to a soluble polyimide by staging at 25 deg in...
The evolution of chemical composition and structure during the thermal imidization of an ester-type ...
The photosensitive poly(p-phenylene biphenyltetracarboximide) (BPDA-PDA) precursor was synthesized b...
Using the techniques of wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS),...
Thermally modified polyimide films based on 1,4-Phenylene diamine (p-PDA) and 3,3,4,4 - Benzophenone...
A polyimide derive from 4,4'-isophthaloyl diphthalic anhydride (IDPA) and 1,3-bis (4-aminophenoxy 4'...
Several poly(amic diisopropyl ester-alt-imide)s have been synthesized, which are a new type of polyi...
A soluble poly( amic acid) precursor solution of fully rod-like poly(p-phenylene pyromellitimide) (P...
Homogeneous precursor/precursor solutions with various compositions were obtained with appreciably h...
Using a bilayer bending technique, intrinsic stress and overall residual stress were measured for th...
The processing of poly(imide) films from poly(amic acid) solutions involves the simultaneous loss of...
2-(4-Aminophenyl)-5-aminopyrimidine (4) is synthesized via a condensation reaction of vinamidium sal...
Poly(3,4'-oxydiphenylene pyromellitimide) (PMDA-3,4'-ODA), an isomer of poly(4,4'-oxy...
A time-resolved infrared spectroscopic investigation was made into the thermal imidization behavior ...
Using a bilayer bending technique, intrinsic stress and overall residual stress were measured for th...
A soluble aromatic poly(amic acid) film was converted to a soluble polyimide by staging at 25 deg in...
The evolution of chemical composition and structure during the thermal imidization of an ester-type ...
The photosensitive poly(p-phenylene biphenyltetracarboximide) (BPDA-PDA) precursor was synthesized b...
Using the techniques of wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS),...
Thermally modified polyimide films based on 1,4-Phenylene diamine (p-PDA) and 3,3,4,4 - Benzophenone...
A polyimide derive from 4,4'-isophthaloyl diphthalic anhydride (IDPA) and 1,3-bis (4-aminophenoxy 4'...
Several poly(amic diisopropyl ester-alt-imide)s have been synthesized, which are a new type of polyi...
A soluble poly( amic acid) precursor solution of fully rod-like poly(p-phenylene pyromellitimide) (P...
Homogeneous precursor/precursor solutions with various compositions were obtained with appreciably h...
Using a bilayer bending technique, intrinsic stress and overall residual stress were measured for th...
The processing of poly(imide) films from poly(amic acid) solutions involves the simultaneous loss of...
2-(4-Aminophenyl)-5-aminopyrimidine (4) is synthesized via a condensation reaction of vinamidium sal...
Poly(3,4'-oxydiphenylene pyromellitimide) (PMDA-3,4'-ODA), an isomer of poly(4,4'-oxy...
A time-resolved infrared spectroscopic investigation was made into the thermal imidization behavior ...
Using a bilayer bending technique, intrinsic stress and overall residual stress were measured for th...
A soluble aromatic poly(amic acid) film was converted to a soluble polyimide by staging at 25 deg in...