Chemically Activated S-S Metathesis for Adhesive-Free Bonding of Polysulfide Surfaces

Maximilian Mann; Paris J. Pauling; Samuel J. Tonkin; Jonathan A. Campbell; Justin M. Chalker

doi:10.1002/macp.202100333

Chemically Activated S-S Metathesis for Adhesive-Free Bonding of Polysulfide Surfaces

Maximilian Mann, Paris J. Pauling, Samuel J. Tonkin, Jonathan A. Campbell, Justin M. Chalker

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

13 Citations (Scopus)

Abstract

A polysulfide terpolymer made from canola oil, dicyclopentadiene, and elemental sulfur is synthesized and evaluated as bulk structural material. The unique polysulfide structure in this material allows the two polymer blocks to be bonded together through amine-catalyzed S-S metathesis. No exogenous adhesive is required: the polysulfide is both the bulk material and the mortar. The strength of the joined polymers is evaluated by a series of shear tests and compared to the bond strength obtained with commercially available superglue. The adhesion obtained via the S-S metathesis is stronger in all tests. To improve the mechanical properties of the terpolymer, carbon nanorods and carbon fibers are embedded in the polymer, with the latter leading to nearly a 16-fold increase in flexural strength. Prospects in sustainable construction are discussed.

Original language	English
Article number	2100333
Number of pages	7
Journal	Macromolecular Chemistry and Physics
Volume	223
Issue number	13
Early online date	16 Nov 2021
DOIs	https://doi.org/10.1002/macp.202100333
Publication status	Published - Jul 2022

Keywords

adhesives
carbon fibers
inverse vulcanization
polysulfides
sulfur
sustainable construction

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10.1002/macp.202100333Licence: In Copyright

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abstract = "A polysulfide terpolymer made from canola oil, dicyclopentadiene, and elemental sulfur is synthesized and evaluated as bulk structural material. The unique polysulfide structure in this material allows the two polymer blocks to be bonded together through amine-catalyzed S-S metathesis. No exogenous adhesive is required: the polysulfide is both the bulk material and the mortar. The strength of the joined polymers is evaluated by a series of shear tests and compared to the bond strength obtained with commercially available superglue. The adhesion obtained via the S-S metathesis is stronger in all tests. To improve the mechanical properties of the terpolymer, carbon nanorods and carbon fibers are embedded in the polymer, with the latter leading to nearly a 16-fold increase in flexural strength. Prospects in sustainable construction are discussed.",

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AU - Mann, Maximilian

AU - Pauling, Paris J.

AU - Tonkin, Samuel J.

AU - Campbell, Jonathan A.

AU - Chalker, Justin M.

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N2 - A polysulfide terpolymer made from canola oil, dicyclopentadiene, and elemental sulfur is synthesized and evaluated as bulk structural material. The unique polysulfide structure in this material allows the two polymer blocks to be bonded together through amine-catalyzed S-S metathesis. No exogenous adhesive is required: the polysulfide is both the bulk material and the mortar. The strength of the joined polymers is evaluated by a series of shear tests and compared to the bond strength obtained with commercially available superglue. The adhesion obtained via the S-S metathesis is stronger in all tests. To improve the mechanical properties of the terpolymer, carbon nanorods and carbon fibers are embedded in the polymer, with the latter leading to nearly a 16-fold increase in flexural strength. Prospects in sustainable construction are discussed.

AB - A polysulfide terpolymer made from canola oil, dicyclopentadiene, and elemental sulfur is synthesized and evaluated as bulk structural material. The unique polysulfide structure in this material allows the two polymer blocks to be bonded together through amine-catalyzed S-S metathesis. No exogenous adhesive is required: the polysulfide is both the bulk material and the mortar. The strength of the joined polymers is evaluated by a series of shear tests and compared to the bond strength obtained with commercially available superglue. The adhesion obtained via the S-S metathesis is stronger in all tests. To improve the mechanical properties of the terpolymer, carbon nanorods and carbon fibers are embedded in the polymer, with the latter leading to nearly a 16-fold increase in flexural strength. Prospects in sustainable construction are discussed.

KW - adhesives

KW - carbon fibers

KW - inverse vulcanization

KW - polysulfides

KW - sulfur

KW - sustainable construction

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UR - http://purl.org/au-research/grants/ARC/DP200100090

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Chemically Activated S-S Metathesis for Adhesive-Free Bonding of Polysulfide Surfaces

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