About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Recent Developments in Biological, Structural and Functional Thin Films and Coatings
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Presentation Title |
Poly(methyl methacrylate) Brushes on Titanium Sheets: Characterization of the Polymer Chains |
Author(s) |
Martial Morin, Abdoulaye Ouattara, Wenjia He, Patrick Masson, Geneviève Pourroy, Heinz Palkowski, Adele Carrado |
On-Site Speaker (Planned) |
Adele Carrado |
Abstract Scope |
The chemical and physical properties of hybrid materials as sandwich titanium (Ti)/Poly(methyl methacrylate) (PMMA)/Ti was tailored by coating with densely grafted PMMA-chains with one end attached to Ti substrate.[1]
These surface-tethered PMMA chains stretch out to form brush-like structures in a three-steps process.[2] However, the characterization (molecular weight, polydispersity and glass transition temperature) of PMMA-brushes tethered to surfaces remains challenging. One way to determine these parameters is to cleave polymer brushes from the substrate and measure them directly in solution via size exclusion chromatography, NMR and FTIR.
The three-step process was applied with a new specific photocleavable initiator which was grafted covalently onto Ti-surface. The PMMA-chains were growing from functionalized Ti-surface by controlled radical polymerization, then cleaved under UV irradiation from the Ti and finally collected. PMMA-chains were carefully structural and chemical characterized.
[1] M.Reggente et al Comp.Structures 218 107-119 2019
[2] M.Reggente et al. ACS Appl.Mater.Interfaces 1 5967-5977 2018 |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |