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Recycling and Self-Healing of Polybenzoxazines with Dynamic Sulfide Linkages.

ABSTRACT: In this work, a recycling and self-healing strategy for polybenzoxazines through both S-S bond cleavage-reformation reaction and supramolecular attractions is described. Both recyclable and self-healable polybenzoxazines can be prepared from low cost chemicals with a simple procedure in only 30 minutes. For this purpose, inverse vulcanization of poly(propylene oxide)benzoxazine (PPOB) and diallybenzoxazine (B-al) with elemental sulfur was performed at 185 °C. The obtained cross-linked polymer films exhibited thermally driven recycling ability up to 5 cycles. Moreover, the self-healing ability of a test specimen was shown. Spectral characterizations, thermal stability and fracture toughness of the films were investigated after each recycling.

SUBMITTER: Arslan M

PROVIDER: S-EPMC5507923 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Recycling and Self-Healing of Polybenzoxazines with Dynamic Sulfide Linkages.

Arslan Mustafa M Kiskan Baris B Yagci Yusuf Y

Scientific reports 20170712 1

In this work, a recycling and self-healing strategy for polybenzoxazines through both S-S bond cleavage-reformation reaction and supramolecular attractions is described. Both recyclable and self-healable polybenzoxazines can be prepared from low cost chemicals with a simple procedure in only 30 minutes. For this purpose, inverse vulcanization of poly(propylene oxide)benzoxazine (PPOB) and diallybenzoxazine (B-al) with elemental sulfur was performed at 185 °C. The obtained cross-linked polymer fi ...[more]

PMID: 28701718

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