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New heat stable polyethers, polyketones and polysulfones
Author(s) -
Banihashemi Ahmad,
Akhlaghinia Batool
Publication year - 1999
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19991001)200:10<2284::aid-macp2284>3.0.co;2-x
Subject(s) - thermal stability , polymer chemistry , sulfonic acid , chemistry , polymer , dicarboxylic acid , phosphorus pentoxide , organic chemistry
Benzofuro[2,3‐ b ]benzofuran‐2,9‐dicarboxylic acid (I), 4,4′‐[sulfonylbis( p ‐phenyleneoxy)]dibenzoic acid, and 2,7‐biphenylene dicarboxylic acid were reacted with a number of diaryl ethers in phosphorous pentoxide/methane sulfonic acid (PPMA) media. Diacid I also was reacted with an equimolar mixture of two diaryl ethers. FT‐IR spectroscopy and elemental analysis data confirmed the molecular structure of the polymers. They show good thermal stability.