Novel pyridine-based ether ester diamine and resulting thermally stable poly (ether ester amide)s

New types of heat-resistant, flame-retardant ferrocene-based polyamides with improved solubility

“…One of the main strategies in this filed is incorporation of flexible or kinked linkages, such as arylene ether into the polymer backbone [14][15][16]. We have also investigated the preparation of new polyamides with flexible linkages through design of novel monomers [17][18][19][20][21][22][23].…”

Soluble, thermally stable poly(amide-ester)s containing pyridine pendent group

“…Polymer T g ( C) T 0 ( C) T 10 ( C) T max ( C) Char yield at 700 C (%) Diacid Although different structures of poly(amide-ester)s have been reported in the literature [33][34][35][36][37], little attention has been paid to pyridine containing poly(amide ester)s. Improved solubility and also increased char yield was observed for the prepared polymers in comparison with the related polymers [12]. Therefore, they showed more solubility and also thermal stability in comparison to the reported polymers that could be related to the special structural features of these polymers and higher growth of molecular weights.…”

“…Another suitable way for modification of polymer properties is copolycondensation, for instance modification of the properties of polyesters by incorporation of hydrogenbonded amide groups or imide units produces copolymers with modified properties [7][8][9][10][11][12][13][14][15][16][17]. In recent years there has been a growing interest in poly(amide-ester)s because of their expected degradable, thermal and mechanical properties.…”

Synthesis of new sulfonated copolyimides in organic and ionic liquid media for fuel cell application

“…Generally, such a structural modification leads to lower glass transition temperature and crystallinemelting temperatures as well as major improvement in solubility and other processing characteristics of the polymers without greatly sacrificing other valuable polymer properties. [24][25][26][27][28][29] On the other hand, six-membered ring polyimides are more difficult to prepare and cast into membranes because of their lower solubilities in common organic solvents. Six-membered ring anhydrides are more stable, but less reactive toward an amine group in respect to their five-membered analogs.…”