HEAT-RESISTANT, PYRIDINE-BASED POLYAMIDES CONTAINING ETHER AND ESTER UNITS WITH IMPROVED SOLUBILITY

Hassan Ebadi a; Shahram Mehdipour-Ataei b

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HEAT-RESISTANT, PYRIDINE-BASED POLYAMIDES CONTAINING ETHER AND ESTER UNITS WITH IMPROVED SOLUBILITY

Papers | Updated：2021-06-21

- HEAT-RESISTANT, PYRIDINE-BASED POLYAMIDES CONTAINING ETHER AND ESTER UNITS WITH IMPROVED SOLUBILITY
- Vol. 28, Issue 1, Pages: 29-37(2010)
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- Published：20 January 2010
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Hassan Ebadi a, Shahram Mehdipour-Ataei b. HEAT-RESISTANT, PYRIDINE-BASED POLYAMIDES CONTAINING ETHER AND ESTER UNITS WITH IMPROVED SOLUBILITY[J]. 2010, 28(1): 29-37.
DOI：

Hassan Ebadi a, Shahram Mehdipour-Ataei b. HEAT-RESISTANT, PYRIDINE-BASED POLYAMIDES CONTAINING ETHER AND ESTER UNITS WITH IMPROVED SOLUBILITY[J]. 2010, 28(1): 29-37. DOI：

摘要

A diamine containing ether and ester units

as basic monomer for the preparation of polyamides

was prepared via three consecutive reactions. Nucleophilic substitution reaction of 1

4-dihydroxy benzene with 4-nitrobenzoyl chloride produced 4-hydroxyphenyl 4-nitrobenzoate (HPNB). Reduction of nitro groups to amino groups using Fe and HCl resulted in preparation of 4-hydroxyphenyl 4-aminobenzoate (HPAB). The diamine was synthesized through nucleophilic substitution reaction of HPAB with 2

6-dichloropyridine. The precursors and diamine were fully characterized by common methods

and the diamine was polycondensed with different diacid chlorides in the presence of an acid scavenger to prepare new polyamides. The polyamides were characterized

and their physical properties including thermal stability and behavior

inherent viscosity and solubility were studied.

Abstract

A diamine containing ether and ester units

as basic monomer for the preparation of polyamides

was prepared via three consecutive reactions. Nucleophilic substitution reaction of 1

6-dichloropyridine. The precursors and diamine were fully characterized by common methods

and the diamine was polycondensed with different diacid chlorides in the presence of an acid scavenger to prepare new polyamides. The polyamides were characterized

and their physical properties including thermal stability and behavior

inherent viscosity and solubility were studied.

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