Tolylene Diisocyanate-Based Poly(imido-amide)s, 2. Distributions of Amide and Imide Groups in Ternary Poly(imido-amide)s Containing Terephthalic Acid Studied by 1H and 13C NMR

✍ Scribed by Corinne Maunand-Tussot; Cathy Sagnier; Quang-Tho Pham

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 119 KB
• Volume: 202
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/1521-3935(20010401)202:7<1071::aid-macp1071>3.0.co;2-4

✦ Synopsis

Distributions of A 2 A 4 , A 2 I 4 , I 2 A 4 and I 2 I 4 % of tolylene 2,4 (D9) units in ternary poly(imide-amide)s -obtained with [1 commercial tolylene diisocyanate (D) + t trimellic anhydride (T) + p terephthalic acid (P), t + p = 1, molar ratios] monomer mixtures -versus acid (COOH) or anhydride (COOCO) mole fractions. Mixtures with 0 P, 0,2 P and 0,4 P correspond to 0,5, 0,6 and 0,7 mole of COOH or 0,5, 0,4 and 0,3 mole of COOCO (anhydride) respectively.