Polybenzoxazine precursors As self-healing agents for polysulfones

Omer Suat Taskin; Baris Kiskan; Yusuf Yagci

doi:10.1021/ma4019153

Polybenzoxazine precursors As self-healing agents for polysulfones

Omer Suat Taskin, Baris Kiskan^*, Yusuf Yagci

^*Corresponding author for this work

Department of Chemistry

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

76 Citations (Scopus)

Abstract

In this work, a novel self-healing system based on the use of polybenzoxazine precursor (PBP) as a healing additive is presented. PBP (M _n = 2300 g/mol, M_w/M_n = 2.6) is facilely synthesized in a reasonable yield by Mannich type polycondensation of bisphenol A, 1,6-diaminohexane with paraformaldehyde. The additive PBP faintly undergoes a thermal ring-opening reaction when contained in polysulfone (PSU) films. Thermal treatment at 160 C enables PBP to chemically bind to PSU chains and form networks through the Friedel-Crafts reaction, demonstrating a novel self-healing behavior. The extent of the recovery was studied using a stress-elongation (%) test and found to be 55%. Thermal properties of the polybenzoxazine precursor and the healed sample were investigated.

Original language	English
Pages (from-to)	8773-8778
Number of pages	6
Journal	Macromolecules
Volume	46
Issue number	22
DOIs	https://doi.org/10.1021/ma4019153
Publication status	Published - 26 Nov 2013

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title = "Polybenzoxazine precursors As self-healing agents for polysulfones",

abstract = "In this work, a novel self-healing system based on the use of polybenzoxazine precursor (PBP) as a healing additive is presented. PBP (M n = 2300 g/mol, Mw/Mn = 2.6) is facilely synthesized in a reasonable yield by Mannich type polycondensation of bisphenol A, 1,6-diaminohexane with paraformaldehyde. The additive PBP faintly undergoes a thermal ring-opening reaction when contained in polysulfone (PSU) films. Thermal treatment at 160 C enables PBP to chemically bind to PSU chains and form networks through the Friedel-Crafts reaction, demonstrating a novel self-healing behavior. The extent of the recovery was studied using a stress-elongation (\%) test and found to be 55\%. Thermal properties of the polybenzoxazine precursor and the healed sample were investigated.",

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AU - Taskin, Omer Suat

AU - Kiskan, Baris

AU - Yagci, Yusuf

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N2 - In this work, a novel self-healing system based on the use of polybenzoxazine precursor (PBP) as a healing additive is presented. PBP (M n = 2300 g/mol, Mw/Mn = 2.6) is facilely synthesized in a reasonable yield by Mannich type polycondensation of bisphenol A, 1,6-diaminohexane with paraformaldehyde. The additive PBP faintly undergoes a thermal ring-opening reaction when contained in polysulfone (PSU) films. Thermal treatment at 160 C enables PBP to chemically bind to PSU chains and form networks through the Friedel-Crafts reaction, demonstrating a novel self-healing behavior. The extent of the recovery was studied using a stress-elongation (%) test and found to be 55%. Thermal properties of the polybenzoxazine precursor and the healed sample were investigated.

AB - In this work, a novel self-healing system based on the use of polybenzoxazine precursor (PBP) as a healing additive is presented. PBP (M n = 2300 g/mol, Mw/Mn = 2.6) is facilely synthesized in a reasonable yield by Mannich type polycondensation of bisphenol A, 1,6-diaminohexane with paraformaldehyde. The additive PBP faintly undergoes a thermal ring-opening reaction when contained in polysulfone (PSU) films. Thermal treatment at 160 C enables PBP to chemically bind to PSU chains and form networks through the Friedel-Crafts reaction, demonstrating a novel self-healing behavior. The extent of the recovery was studied using a stress-elongation (%) test and found to be 55%. Thermal properties of the polybenzoxazine precursor and the healed sample were investigated.

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U2 - 10.1021/ma4019153

DO - 10.1021/ma4019153

M3 - Article

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SN - 0024-9297

VL - 46

SP - 8773

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JO - Macromolecules

JF - Macromolecules

IS - 22

ER -

Polybenzoxazine precursors As self-healing agents for polysulfones

Abstract

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