Acrylate coating oxidation studies

Acrylate coating oxidation studies changes in physical properties, 303 oxygen absorption data for... 

Oxidation Studies. Oxygen absorption studies of representative acrylate coatings show that these materials can absorb oxygen at elevated temperatures. Figure 1 shows data at 139 l C for an epoxy diacrylate coating, A, and two urethane diacrylates, B and C. All materials undergo some degree of oxidation, but the epoxy diacrylate is the most unstable. 

Plasma treatment of microchannels can be useful for improving the functionality of microdevices. For example, previous studies have shown that PDMS microchannels can be made hydrophilic by the addition of silane molecules with polar head groups [6]. In this process (3-mercaptopropyl)trimethoxysilane (3-MPS) was absorbed to PDMS to increase the hydrophilic properties of microchannels. Additionally, plasma polymerization has been used to induce in the long-term hydrophilic surface modification by covalently bonding a polymer layer to the surface. Barbier et al. [7] describe a method based on plasma polymerization modification with acrylic acid coatings. First, argon plasma pretreatment was used to activate trace oxygen molecules in the chamber, which partially oxidize the top layer of the substrate. This step cross-linked the surface to reduce ablation of silicon... 

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