Poly (Ethylene Glycol-Co-Styrene) Films Deposited by Plasma Polymerization Reactions at Atmospheric Pressure

Abstract

Atmospheric pressure plasma co-polymerization of ethylene glycol and styrene was applied to produce poly (ethylene glycol-co-styrene) using a dielectric barrier discharge. The chemical structure of polymerized films was studied by Fourier-transform infrared spectroscopy which confirms that we obtained copolymerized films with hydroxyl groups incorporated. Chemical composition of films was studied by X-ray Photoelectron Spectroscopy and oxygen containing groups (C-O and C=O) were identified. Topography of polymer films was revealed using Atomic Force Microscopy technique and the film root mean square roughness (R rms ) was found to be 1.6 nm. Surface wettability was analyzed using water contact angle technique.

Bio-based sustainable composites from hazelnut shell and PP/SEBS blends

“…The characteristic peaks of PP were observed as follows 2950 cm −1 (asymmetrical CH 3 stretching), 2917 cm −1 (asymmetrical CH 2 stretching), 43 2838 cm −1 , (CH 3 stretching), 43 1453 cm −1 , 1375 cm −1 , (symmetrical CH 3 bending), 1167 cm −1 , 997 cm −1 , 972 cm −1 , 840 cm −1 , 808 cm −1 (wagging C-H, rocking, CH 3 rocking C-H, stretching C-C). 44–46 SEBS showed characteristic peaks around 2920 cm −1 and 2851 cm −1 (C-H stretching), 47–50 1599, 1460 cm −1 (skeleton deformation vibration of aromatic ring moieties, benzene ring), 1378 cm −1 (–CH vibration of CH 3 ), 42,47,48,51 1028 cm −1 (C-H in-plane-deformation bending of aromatic ring), 48,52 759 cm −1 (aromatic, styrenic-CH bending). 45,53 Since PP and SEBS showed similar peaks between 4000-1600 cm −1 , as given in Figure 8(b) and (c) PP/SEBS blend also showed peaks at 2952 cm −1 , 2918 cm −1 and 2850 cm −1 .…”

High Shear Processing of Expanded Vermiculite Filled Polymer Composites: Particle Size Effect on Flexible Composites

“…Peaks between 800-1160 cm -1 were caused by peaks connected to the C-C groups of the block copolymer. 27,32,33 Since results of the vermiculites were commonly similar, only one infrared spectrum was given as VMT-1/2. Vermiculite showed a few weak to medium intensity bands, and their positions vary with the amount of inorganic content distribution accordingly.…”