Li, Kejiao; Qi, Yuhong; Zhou, Yingju; Sun, Xiaoyu; Zhang, Zhanping published the artcile< Microstructure and properties of poly(ethylene glycol)-segmented polyurethane antifouling coatings after immersion in seawater>, Related Products of 112-63-0, the main research area is polyethylene glycol polyurethane antifouling coating seawater immersion microstructure property; microstructure; poly(ethylene glycol)-segmented polyurethane coating; properties; seawater immersion.
Polyurethane has a microphase separation structure, while polyethylene glycol (PEG) can form a hydrated layer to resist protein adsorption. In this paper, PEG was introduced to polyurethane to improve the antifouling properties of the polyurethane, providing a new method and idea for the preparation of new antifouling polyurethane materials. The mech. properties, hydrophilicity, swelling degree, microphase separation and antifouling performance of the coatings were evaluated. The response characteristics of the polyurethane coatings in a seawater environment were studied, and the performance changes of coatings in seawater were tested. The results showed that the crystallized PEG soft segments increased, promoting microphase separation The stress at 100% and the elasticity modulus of the polyurethane material also markedly increased, in addition to increases in the swelling degree in seawater, the water contact angle decreased. A total of 25% of PEG incorporated into a soft segment can markedly improve the antibacterial properties of the coatings, but adding more PEG has little significant effect. After immersion in seawater, the coatings became softer and more elastic. This is because water mols. formed hydrogen bonding with the amino NH, which resulted in a weakening effect being exerted on the carbonyl C=O hydrogen bonding and ether oxygen group crystallization
Polymers (Basel, Switzerland) published new progress about Antibacterial agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
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Ester – an overview | ScienceDirect Topics