Mechanoluminescent Imaging of Osmotic Stress-Induced Damage in a Glassy Polymer Network

Jess M. Clough; Jasper Van Der Gucht; Rint P. Sijbesma

doi:10.1021/acs.macromol.6b02540

Mechanoluminescent Imaging of Osmotic Stress-Induced Damage in a Glassy Polymer Network

Jess M. Clough, Jasper Van Der Gucht, Rint P. Sijbesma^*

^*Corresponding author for this work

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

52 Citations (Scopus)

Abstract

A chemiluminescent mechanophore, bis(adamantyl-1,2-dioxetane), is used to investigate the covalent bond scission resulting from the sorption of chloroform by glassy poly(methyl methacrylate) (PMMA) networks. Bis(adamantyl)-1,2-dioxetane units incorporated as cross-linkers underwent mechanoluminescent scission, demonstrating that solvent ingress caused covalent bond scission. At higher cross-linking densities, the light emission took the form of hundreds of discrete bursts, widely varying in intensity, with each burst composed of 10⁷-10⁹ photons. Camera imaging indicated a relatively slow propagation of bursts through the material and permitted analysis of the spatial correlation between the discrete bond-breaking events. The implications of these observations for the mechanism of sorption and fracture are discussed.

Original language	English
Pages (from-to)	2043-2053
Journal	Macromolecules
Volume	50
Issue number	5
DOIs	https://doi.org/10.1021/acs.macromol.6b02540
Publication status	Published - 2017

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title = "Mechanoluminescent Imaging of Osmotic Stress-Induced Damage in a Glassy Polymer Network",

abstract = "A chemiluminescent mechanophore, bis(adamantyl-1,2-dioxetane), is used to investigate the covalent bond scission resulting from the sorption of chloroform by glassy poly(methyl methacrylate) (PMMA) networks. Bis(adamantyl)-1,2-dioxetane units incorporated as cross-linkers underwent mechanoluminescent scission, demonstrating that solvent ingress caused covalent bond scission. At higher cross-linking densities, the light emission took the form of hundreds of discrete bursts, widely varying in intensity, with each burst composed of 107-109 photons. Camera imaging indicated a relatively slow propagation of bursts through the material and permitted analysis of the spatial correlation between the discrete bond-breaking events. The implications of these observations for the mechanism of sorption and fracture are discussed.",

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AU - Sijbesma, Rint P.

PY - 2017

Y1 - 2017

N2 - A chemiluminescent mechanophore, bis(adamantyl-1,2-dioxetane), is used to investigate the covalent bond scission resulting from the sorption of chloroform by glassy poly(methyl methacrylate) (PMMA) networks. Bis(adamantyl)-1,2-dioxetane units incorporated as cross-linkers underwent mechanoluminescent scission, demonstrating that solvent ingress caused covalent bond scission. At higher cross-linking densities, the light emission took the form of hundreds of discrete bursts, widely varying in intensity, with each burst composed of 107-109 photons. Camera imaging indicated a relatively slow propagation of bursts through the material and permitted analysis of the spatial correlation between the discrete bond-breaking events. The implications of these observations for the mechanism of sorption and fracture are discussed.

AB - A chemiluminescent mechanophore, bis(adamantyl-1,2-dioxetane), is used to investigate the covalent bond scission resulting from the sorption of chloroform by glassy poly(methyl methacrylate) (PMMA) networks. Bis(adamantyl)-1,2-dioxetane units incorporated as cross-linkers underwent mechanoluminescent scission, demonstrating that solvent ingress caused covalent bond scission. At higher cross-linking densities, the light emission took the form of hundreds of discrete bursts, widely varying in intensity, with each burst composed of 107-109 photons. Camera imaging indicated a relatively slow propagation of bursts through the material and permitted analysis of the spatial correlation between the discrete bond-breaking events. The implications of these observations for the mechanism of sorption and fracture are discussed.

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DO - 10.1021/acs.macromol.6b02540

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SP - 2043

EP - 2053

JO - Macromolecules

JF - Macromolecules

IS - 5

ER -

Mechanoluminescent Imaging of Osmotic Stress-Induced Damage in a Glassy Polymer Network

Abstract

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