Aromatic polyamides and polyimides with benzimidazole or benzoxazinone pendent groups prepared from 5-(2-benzimidazole)- or 5-(2-benzoxazinone)-1,3-phenylenediamine

Synthesis of ternary copolyamides from a

Synthesis of ternary copolyamides from aromatic diamine (m-phenylenediamine, diaminodiphenylsulfone), aromatic diamine with carboxyl or sulfonic group (3,5-diaminobenzoic acid, 2,4-diaminobenzenesulfonic acid), and iso- or terephthaloyl chloride

✍ Shigeji Konagaya; Masaya Tokai 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 152 KB 👁 2 views

The copolymerization of iso-or terephthaloyl chloride, m-phenylenediamine or diaminodiphenylsulfone, and 3,5-diaminobenzoic acid or 2,4-diaminobenzene sulfonic acid (or sulfonate) was studied. Copolymers with high reduced viscosity could be obtained by low temperature solution polymerization, but no