Berlin 2018 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 51: Hydrogels and Microgels
CPP 51.1: Talk
Wednesday, March 14, 2018, 15:00–15:15, C 264
On the generation of stimuli-responsive HEMA-co-DEAEMA hydrogels by using Cold Atmospheric-Pressure Plasma Polymerization — •Ihsan Amin1, Felipe Vicente de Paula Kodaira1,2, Monique Levien1, Rogério Pinto Mota2, Klaus-Dieter Weltmann1, and Katja Fricke1 — 1Junior Research Group Biosensing Surfaces, Leibniz Institute for Plasma Science and Technology, INP Greifswald e.V., Felix-Hausdorff-Strasse 2, 17489 Gerifswald, Germany — 2São Paulo State University (Unesp), School of engineering, Guaratinguetá, SP, Brazil
A simple and fast fabrication of stimuli-responsive hydrogels from (hydroxyethyl)methacrylate-co-2-(diethylamino)ethyl methacrylate by cold atmospheric plasma polymerization (CAPP) is reported. The influence of input power and different volume ratios on the coating's properties have been investigated to clarify their effect on the stability and swelling behavior of the hydrogels. The plasma-polymerized hydrogels retain the functionality of both monomers and their functional groups, as measured by FTIR and XPS. Hydrogel films generated at a HEMA/DEAEMA volume ratio of 1:1 demonstrate good stability and a high swelling ratio in water at pH 7, and a lower swelling ratio at pH 10 and pH 4, respectively. Due to the simplicity and cost efficiency of CAPP, combined with the excellent properties of the plasma polymerized hydrogels, these coatings are suitable for biomedical applications such as biosensors, implants, and cell adhesion-promoted coatings where long-term stability of the surface properties is required.