Novel organosoluble poly(amide-imide-imide)s synthesized from new tetraimide-dicarboxylic acid by condensation with 4,4′-oxydiphthalic anhydride, 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene, trimellitic anhydride, and various aromatic diamines

2006 ◽  
Vol 101 (5) ◽  
pp. 2854-2864 ◽  
Author(s):  
Chin-Ping Yang ◽  
Ya-Ping Chen ◽  
E. M. Woo
Keyword(s):  
Dicarboxylic Acid ◽  
Trimellitic Anhydride ◽  
Aromatic Diamines ◽  
Oxydiphthalic Anhydride

Synthesis and Properties of New Poly( Amide-Imide)s Based on Imide Dicarboxylic Acid

2011 ◽  
Vol 332-334 ◽  
pp. 1722-1726 ◽  
Author(s):  
Sheng Chen ◽  
Qing Kang Zheng ◽  
Zhen Bao Li ◽  
Xin Lei Wang ◽  
Jian Wu Lan
Keyword(s):  
Differential Scanning Calorimetry ◽  
Dicarboxylic Acid ◽  
Diphenyl Ether ◽  
Aminobenzoic Acid ◽  
Trimellitic Anhydride ◽  
Scanning Calorimetry ◽  
Thermal Stabilities ◽  
Glass Transition Temperatures ◽  
Weight Losses ◽  
Cast Films

Two kinds of imide dicarboxylic acid monomers, 4,4'-bis(trimellitimido) diphenyl ether Ⅰ and p-trimellitimido-benzoic acid Ⅱ were successfully synthesized from 4,4'-diaminodiphenyl ether and p-aminobenzoic acid with trimellitic anhydride respectively.and used to synthesize a series of new aromatic poly(amide-imide)s (PAIs) by the tri-phenyl phosphite-activated polycondensation method. The preparation of PAIs was carried out using triphenyl phosphate and pyridine symtem. The PAIs had inherent viscosities of 0.55–1.46 dL g-1. PAI films were obtained by casting their N-Methyl-2-pyrrolidone (NMP) solution. Their cast films had tensile strengths ranging from 37.4 to 83.9 MPa. The glass-transition temperatures (measured by differential scanning calorimetry) were in the range of 265-310°C. According to thermogravimetric analysis, the polymers were fairly stable up to temperature around 420°C, and 10% weight losses in the temperature range of 474-550°C in nitrogen, that showed good thermal stabilities of these polymers.

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