Synthesis and characterization of poly(amide sulfonamide)s (PASAs)

Wing Hong CHAN*, Suei Yee Lam‐Leung, Chingfai Ng, Junqi Ding, Shiping Xi

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

14 Citations (Scopus)


New diamino monomers IIa–IIg were synthesized in a two‐step reaction sequence starting from p‐acetamidobenzenesulfonyl chloride. Solution polymerization of these monomers in DMAC with terephthaloyl or isophthaloyl chloride resulted in the formation of a series of 14 poly(amide sulfonamide)s (PASAs) in excellent yield (> 95%). The polymers have in‐trinsic viscosities of 0.32–1.11 dL g−1. Except for polymers IIIa−p and IIId‐p, all other PASAs were readily soluble in aprotic polar solvents including DMAC, DMF, and DMSO. Thermogravimetric analyses of the polymers showed moderate thermal stability with 10% weight loss being recorded in the range of 325–408°C. In addition, these polymers exhibit moderate chemical stabilities toward alkali, acidic, and chromic acid solution. © 1995 John Wiley & Sons, Inc.

Original languageEnglish
Pages (from-to)2525-2531
Number of pages7
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number15
Publication statusPublished - 15 Nov 1995

Scopus Subject Areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • film‐forming
  • membrane
  • poly(amide sulfonamide)
  • reverse osmosis


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