scholarly journals Synthesis and Characterization of Novel Aromatic Polyimides from Aromatic Diamine and 3,3''''',4,4'''''-p-Sexiphenyltetracarboxylic Dianhydride

2000 ◽  
Vol 32 (11) ◽  
pp. 948-953 ◽  
Author(s):  
Atsushi Morikawa ◽  
Katsumichi Ono
Keyword(s):  
Synthesis And Characterization ◽  
Aromatic Diamine ◽  
Aromatic Polyimides

scholarly journals Synthesis and characterization of perfluoroalkyl-substituted aromatic polyimides.

1995 ◽  
Vol 8 (2) ◽  
pp. 281-288 ◽  
Author(s):  
YOSHIYUKI OISHI ◽  
JUNPEI KANAZAWA ◽  
HIDETOSHI HIRAHARA ◽  
KUNIO MORI
Keyword(s):  
Synthesis And Characterization ◽  
Aromatic Polyimides

Synthesis and characterization of aromatic polyimides containing tetraphenylfuran-thiazole moiety

2018 ◽  
Vol 135 (6) ◽  
pp. 3057-3068 ◽  
Author(s):  
Y. S. Patil ◽  
P. H. Salunkhe ◽  
J. N. Mahindrakar ◽  
S. S. Ankushrao ◽  
V. N. Kadam ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Aromatic Polyimides

Synthesis and characterization of new cardo poly(ether amide)s containing 9(10H)-anthrone units

2020 ◽  
Vol 32 (9) ◽  
pp. 1001-1009
Author(s):  
Yi-Sheng Luo ◽  
Qiu-Ying Wang ◽  
Xue-Chun Mao ◽  
Shou-Ri Sheng
Keyword(s):  
Room Temperature ◽  
Dicarboxylic Acids ◽  
Synthesis And Characterization ◽  
Aromatic Diamine ◽  
Polar Solvents ◽  
Glass Transition Temperatures ◽  
Flexible Films ◽  
Step Procedure ◽  
Aromatic Dicarboxylic Acids

A new aromatic diamine, 10,10-bis[4-(4-aminophenoxy)phenyl]-9(10 H)-anthrone (BAPA) has been synthesized from anthrone via three-step procedure. Direct phosphorylation polycondensation of BAPA with various aromatic dicarboxylic acids produced a series of cardo poly(ether amide)s with inherent viscosities of 0.97–1.29 dL g−1. All the polymers were readily soluble in polar solvents such as N-methyl-2-pyrrolidone, N, N-dimethylacetamide (DMAc), and pyridine at room temperature, and afforded transparent, strong, and flexible films upon casting from DMAc solvent. The resulting poly(ether amide)s had glass transition temperatures of 254–316°C, 10% weight loss temperatures of 495–524°C, and char yields of 55–70% at 800°C in nitrogen. These polymers were amorphous and their films exhibited tensile strengths of 81.6–104.7 MPa, tensile moduli of 1.8–2.4 GPa, and elongations at break of 8–15%.

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