Novel polyimides based on diamine containing thiazole units with thioether linkage and pyridine as pendent group: Synthesis and characterization

Jafar Rezania; Abbas Shockravi; Morteza Ehsani; Vahid Vatanpour

doi:10.1177/0954008317732397

Novel polyimides based on diamine containing thiazole units with thioether linkage and pyridine as pendent group: Synthesis and characterization

Jafar Rezania, Abbas Shockravi^*, Morteza Ehsani, Vahid Vatanpour

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Three new organic-soluble polyimides (PIs) bearing flexible thioether linkages, thiazole, and pyridine ring units were synthesized from a novel thioether-bridged diamine monomer and commercially available aromatic dianhydrides (1–3) via chemical imidization method. The resulting polymers were obtained in high yields and possessed inherent viscosities in the range of 0.67–0.89. The PIs are characterized by Fourier-transform infrared (FTIR), nuclear magnetic resonance (NMR), differential scanning calorimetry, and thermogravimetric analysis (TGA). All of the PIs exhibited excellent solubility in polar solvent. The polymers showed good thermal stability with glass transition temperatures (T_gs) in the range of 194–244°C, and decomposition temperatures (T₅%) exceeding 300°C were observed using TGA in nitrogen atmosphere for the current polymers.

Original language	English
Pages (from-to)	840-846
Number of pages	7
Journal	High Performance Polymers
Volume	30
Issue number	7
DOIs	https://doi.org/10.1177/0954008317732397
Publication status	Published - 1 Sept 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Author(s) 2017.

Keywords

heterocycle polymer
Polyimide
pyridine pendent group
thiazole

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10.1177/0954008317732397

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abstract = "Three new organic-soluble polyimides (PIs) bearing flexible thioether linkages, thiazole, and pyridine ring units were synthesized from a novel thioether-bridged diamine monomer and commercially available aromatic dianhydrides (1–3) via chemical imidization method. The resulting polymers were obtained in high yields and possessed inherent viscosities in the range of 0.67–0.89. The PIs are characterized by Fourier-transform infrared (FTIR), nuclear magnetic resonance (NMR), differential scanning calorimetry, and thermogravimetric analysis (TGA). All of the PIs exhibited excellent solubility in polar solvent. The polymers showed good thermal stability with glass transition temperatures (Tgs) in the range of 194–244°C, and decomposition temperatures (T5%) exceeding 300°C were observed using TGA in nitrogen atmosphere for the current polymers.",

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T1 - Novel polyimides based on diamine containing thiazole units with thioether linkage and pyridine as pendent group

T2 - Synthesis and characterization

AU - Rezania, Jafar

AU - Shockravi, Abbas

AU - Ehsani, Morteza

AU - Vatanpour, Vahid

N1 - Publisher Copyright: © The Author(s) 2017.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - Three new organic-soluble polyimides (PIs) bearing flexible thioether linkages, thiazole, and pyridine ring units were synthesized from a novel thioether-bridged diamine monomer and commercially available aromatic dianhydrides (1–3) via chemical imidization method. The resulting polymers were obtained in high yields and possessed inherent viscosities in the range of 0.67–0.89. The PIs are characterized by Fourier-transform infrared (FTIR), nuclear magnetic resonance (NMR), differential scanning calorimetry, and thermogravimetric analysis (TGA). All of the PIs exhibited excellent solubility in polar solvent. The polymers showed good thermal stability with glass transition temperatures (Tgs) in the range of 194–244°C, and decomposition temperatures (T5%) exceeding 300°C were observed using TGA in nitrogen atmosphere for the current polymers.

AB - Three new organic-soluble polyimides (PIs) bearing flexible thioether linkages, thiazole, and pyridine ring units were synthesized from a novel thioether-bridged diamine monomer and commercially available aromatic dianhydrides (1–3) via chemical imidization method. The resulting polymers were obtained in high yields and possessed inherent viscosities in the range of 0.67–0.89. The PIs are characterized by Fourier-transform infrared (FTIR), nuclear magnetic resonance (NMR), differential scanning calorimetry, and thermogravimetric analysis (TGA). All of the PIs exhibited excellent solubility in polar solvent. The polymers showed good thermal stability with glass transition temperatures (Tgs) in the range of 194–244°C, and decomposition temperatures (T5%) exceeding 300°C were observed using TGA in nitrogen atmosphere for the current polymers.

KW - heterocycle polymer

KW - Polyimide

KW - pyridine pendent group

KW - thiazole

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JF - High Performance Polymers

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ER -

Novel polyimides based on diamine containing thiazole units with thioether linkage and pyridine as pendent group: Synthesis and characterization

Abstract

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Keywords

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