Studies on the Adhesion Control of Marine Organisms by Means of a Heterogeneous Polymer Surface

• Published in: KOBUNSHI RONBUNSHU Vol. 50; no. 11; pp. 837 - 845
• Main Authors: MURASE, Heihachi, NANISHI, Kiyoshi
• Format: Journal Article
• Language: Japanese
• Published: Tokyo The Society of Polymer Science, Japan 01.01.1993; Tsukiji daisan nagaoka
• Subjects: Adhesion Prevention; Adsorption of Protein; Marine Organisms; Non Thrombogenicity; Non-Toxic Anti-Fouling; Phase Separation; Surface Energy; Surface Morphology
• ISSN: 0386-2186; 1881-5685
• DOI: 10.1295/koron.50.837

To control the adhesion of marine organisms on polymer materials, effects of phase separation of polymer surfaces was studied. Polydimethylsiloxane modified with polyethylene glycol as a hydrophilic component and poly (dimethyl-diphenylsiloxane) as a hydrophobic component were combined. Surface properties were characterized by SEM observation of morphology and measurements of surface energy and adsorption of protein. Actual fouling was investigated by immersion of test panels in Orido-Bay, Shimizu. Results showed that the film surface, which had phase-separated structure with free surface energy of 23.0 mJ/m2 and O. 8-1. 0 Mm in domain size, was especially effective to prevent adhesion of marine organisms. The adhesion of marine organisms on polymer films exhibited a good correlation with the adsorption of proteins such as γ-globulin and fibrinogen. The results would be useful to develop materials for non-toxic anti-fouling coatings.