Chemistry and Physics Faculty Articles
Title
Engineering the Surface Properties of Poly(dimethylsiloxane) Utilizing Aqueous RAFT Photografting of Acrylate/Methacrylate Monomers
Document Type
Article
Publication Date
1-8-2018
Publication Title
Macromolecules
ISSN
0024-9297
Volume
51
Issue/No.
2
First Page
306
Last Page
317
Abstract
Polymeric surface grafting offers a tunable way to control the interfacial interactions between a material’s surface and its environment. The ability to tailor the surface properties of poly(dimethylsiloxane) elastomer (PDMSe) substrates with functional chemistry, wettability, and roughness can enhance the fields of biofouling, microfluidics, and medical implants. We developed a reversible addition–fragmentation chain transfer (RAFT) polymerization technique to synthesize a host of copolymers composed of acrylamide, acrylic acid, hydroxyethyl methacrylate, and (3-acrylamidopropyl)trimethylammonium chloride with targetable molecular weight from ∼5 to 80 kg/mol and low dispersity of Đ ≤ 1.13. This RAFT strategy was used in conjunction with photografting to chemically engineer the surface of PDMSe with hydrophilic, hydrophobic, and anionic groups. Varying grafting time and copolymer composition allowed for targetable molecular weight, chemical functionality, and water contact angles ranging from 112° to 14°. These new material surfaces will be evaluated for their antifouling and fouling release potential.
Additional Comments
Copyright © 2018 © 2018 American Chemical Society
NSUWorks Citation
Kuliasha, C. A., Fedderwitz, R. L., Calvo, P. R., Sumerlin, B. S., & Brennan, A. B. (2018). Engineering the Surface Properties of Poly(dimethylsiloxane) Utilizing Aqueous RAFT Photografting of Acrylate/Methacrylate Monomers. Macromolecules, 51, (2), 306 - 317. https://doi.org/10.1021/acs.macromol.7b02575. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/246
ORCID ID
0000-0002-7836-7262
DOI
10.1021/acs.macromol.7b02575
Comments
Supporting Information
The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.macromol.7b02575.
FTIR and 13C NMR spectra of CMP, FTIR spectra and peak fitting of acrylate/methacrylate homopolymers/copolymers, maximum FTIR carbonyl absorbance ratios, 1H NMR spectra of respective homopolymers/copolymers, composition % versus conversion, PDMSe monomer mass uptake, FTIR spectra of grafted PDMSe versus treatment time, data showing the grafted "sharktooth" morphology, and FTIR spectra of Na+ conjugated copolymers (PDF)