Marine antifouling property of dextran coating was investigated. Catechol‐conjugated dextrans (Dex‐C) with different grafting densities were synthesized and used for surface coating. The coating efficacy was analyzed by spectroscopic ellipsometry and water contact angle goniometry, and as a result, coating thickness was shown to increase with increasing catechol content in Dex‐C. Marine antifouling property of Dex‐C coating was then investigated via marine diatom adhesion assays. Unlike the coating thickness, marine antifouling performance of Dex‐C coating was found to be not proportional to the catechol content in Dex‐C. We expect that this study will provide an important factor to consider in designing catechol‐conjugated antifouling materials.

中文翻译：

---

用于海洋防污应用的邻苯二酚共轭右旋糖酐：高邻苯二酚含量的不利影响

研究了葡聚糖涂料的海洋防污性能。合成了具有不同接枝密度的邻苯二酚共轭右旋糖酐（Dex‐C），并将其用于表面涂层。通过椭圆偏振光谱法和水接触角测角法分析了涂层的功效，结果表明涂层厚度随着Dex-C中邻苯二酚含量的增加而增加。然后通过海洋硅藻粘附试验研究了Dex-C涂料的海洋防污性能。与涂层厚度不同，发现Dex‐C涂料的海洋防污性能与Dex‐C中的邻苯二酚含量不成比例。我们希望这项研究将为设计邻苯二酚共轭防污材料提供一个重要的考虑因素。