SYNTHESIS AND CHARACTERISTICS OF NOVEL POLYAMIDES HAVING PENDENT N-PHENYL IMIDE GROUPS.

Park, SangHyun; Lee, JaeWook; Suh, DongHack; Ju, SangYong

We have investigated a novel monomer having a pendent phenyl imide group for preparing new cycloaliphatic-aromatic polyamides. Novel polyamides were synthesized by a direct polycondensation reaction of N-phenyl-2,3-imide cyclopentane-1,4-dicarboxylic acid (PCPA) and various aromatic diamines. A direct polycondensation was carried out by a Yamazaki's direct polycondensation that is typical of using triphenyl phosphite, lithium chloride, and pyridine. Inherent viscosity of these resulting polyamides was in the range 0.47–1.05 dL/g. The glass transition temperatures of these polyamides were in the range of 190–200°C. The decomposition temperatures of them were in the range of 310–323°C in nitrogen atmosphere. The Solubility of these polyamides are good in aprotic solvents such as DMAc (N,N-Dimethylacetamide), NMP (N-Methyl-2-Pyrrolidinone) and DMF (N,N-Dimethylformamide). Transparent, flexible, and tough films were cast from DMAc solutions.

CHEMICAL reactions; POLYAMIDES; PHENYL compounds; IMIDES

Journal of Macromolecular Science: Pure & Applied Chemistry, 2001, Vol 38, Issue 5/6, p513

1060-1325

Academic Journal

10.1081/MA-100103364