Fouling release coatings generally consisting of polydimethylsiloxane (PDMS) elastomer cannot renew their surface and exhibit poor antifouling ability under static conditions. In this study, we have prepared a biodegradable network based on hyperbranched poly(ε-caprolactone) (h-PCL) and siloxane via esterification reaction and condensation. The network with PCL segments is able to biodegrade in a marine environment as a function of the degree of branching and the content of ester, forming a dynamic surface to inhibit the adhesion of marine biofouling. Meanwhile, the low crystallinity and chemical cross-linking make the network yield an elastic surface. The presence of siloxane increases the surface smoothness and reduces the surface energy of elastomer. As revealed by a pseudobarnacle removal test, the elastomer has fouling release performance. With a dynamic surface and fouling release ability, the biodegradable elastomer coating is promising to be an environment-friendly antifouling coating.

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超支化聚（ε-己内酯）/硅氧烷弹性体组成的防污涂料

通常由聚二甲基硅氧烷（PDMS）弹性体组成的防污涂料不能更新其表面，并且在静态条件下显示出较差的防污能力。在这项研究中，我们准备了一种基于超支化聚（ε-己内酯）（h-PCL）和硅氧烷通过酯化反应和缩合反应。具有PCL链段的网络能够根据支化程度和酯含量在海洋环境中进行生物降解，从而形成动态表面来抑制海洋生物污垢的粘附。同时，低结晶度和化学交联使网络产生弹性表面。硅氧烷的存在增加了表面光滑度并降低了弹性体的表面能。如假藤壶去除试验所揭示的，弹性体具有结垢释放性能。具有动态表面和污垢释放能力的可生物降解的弹性体涂料有望成为一种环保型防污涂料。