A series of semiladder polyimidazopyrrolones having amide, ester and ether linkages in the main chain have been synthesized using low-temperature polycondensation in dimethylacetamide (DMA). Solutions of prepolymers in the form of proper polyamideamino acid in DMA were cast onto a glass plate, heated in vacuo at 200 °C for 8 h and then at 280 °C for 2 h to cause evaporation of the solvent and thermal cyclization. Free-standing foils were characterized by Fourier-transform infrared spectroscopy and their mechanical, thermomechanical and optical properties were investigated.
Get full access to this article
View all access options for this article.
References
1.
[1] Sato M, Kondo H and Yokoyama M1982J. Polym. Sci.20335-335
2.
[2] Sek D, Schab-Balcerzak E and Grabiec E1998Polymer397001-7001
3.
[3] Sek D, Schab-Balcerzak E and Grabiec E1999Polymer402419-2419
4.
[4] Sek D, Schab-Balcerzak E, Grabiec E, Volozhin A and Chamenko T2000Polymer4149-49
5.
[5] Stille J K, Williamson J R and Arnold F E1965J. Polym. Sci.31013-1013
6.
[6] Sek D, Kaczmarczyk B and Schab-Balcerzak E1999Polymer404493-4493
7.
[7] Sek D, Kaczmarczyk B and Schab-Balcerzak E1999Polymer407303-7303
