Wholly aromatic polyamide-hydrazides. V. Preparation and properties of semipermeable membranes from poly[4-(terephthaloylamino) benzoic acid hydrazide]

Synthesis and properties of novel aromat

Synthesis and properties of novel aromatic polyhydrazides and poly(amide–hydrazide)s based on the bis(ether benzoic acid)s from hydroquinone and substituted hydroquinones

✍ Sheng-Huei Hsiao; Liang-Ru Dai; Ming-Hsiang He 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 246 KB 👁 1 views

4,4Ј-(1,4-Phenylenedioxy)dibenzoic acid as well as the 2-methyl-, 2-tertbutyl-, or 2-phenyl-substituted derivatives of this dicarboxylic acid were synthesized in two main steps from p-fluorobenzonitrile and hydroquinone or its methyl-, tert-butyl-, or phenyl-substituted derivatives. Polyhydrazides a