Aromatic processable poly(amide-imide)s have been prepared according to the Yamazaki and Higashi phosphorylation reaction from flexible aromatic diamines and a mixture of isomeric 1,2,4-benzenetricarboxylic acid monoethylesters following a novel "one-pot'' procedure. The polymerization was performed
Studies on amidation and imidization processes of amine salts of aromatic tetracarboxylic acids and diamine
โ Scribed by Liu Zhenhai; Ding Mengxian; Chen Zhongqing
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 526 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0040-6031
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A novel polymer-forming diimide-diacid, 2,6-bis(4-trimellitimidophenoxy)naphthalene, was prepared by the condensation reaction of 2,6-bis(4-aminophenoxy)naphthalene with trimellitic anhydride (TMA). A series of novel aromatic poly(amideimide)s containing 2,6-bis(phenoxy)naphthalene units were prepar
## Abstract Four dicarboxylic acids containing one preformed imide ring were prepared by condensation of trimellitic anhydride with ฮฑโamino acids such as glycine, DLโalanine, DLโvaline, and DLโlcucinc. These diacids were subsequently directly polycondensated with various aromatic diamines using tri
An imide ring-performed dicarboxylic acid bearing one hexafluoroisopropylidene and two ether linkages between aromatic rings, 2,2-bis[4-(4-trimellitimidophenoxy)phenyl]hexafluoropropane (II), was prepared from the condensation of 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane and trimellitic anh
A diimide dicarboxylic acid, 1,4-bis(4-trimellitimidophenoxy)naphthalene (1,4-BTMPN), was prepared by condensation of 1,4-bis(4-aminophenoxy)naphthalene and trimellitic anhydride at a 1 : 2 molar ratio. A series of novel poly(amide-imide)s (IIa-k) with inherent viscosities of 0.72 to 1.59 dL/g were