†Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM, Università di Pisa, 56124 Pisa, Italy.
‡Dipartimento di Scienze Veterinarie, Università di Pisa, 56126 Pisa, Italy.
ACS Appl Mater Interfaces. 2015 Apr 22;7(15):8293-301. doi: 10.1021/acsami.5b01522. Epub 2015 Apr 10.
Novel photopolymerized network films based on a polysiloxane matrix containing varied amounts of polyoxyethylene (P3) or perfluorohexylethyl (F) dangling side chains were investigated. For films containing less than 10 wt % P3 and F, the wettability and elastic modulus were similar to those of the photopolymerized network matrix. However, angle-resolved X-ray photoelectron spectroscopy measurements proved that the surface of films with F dangling chains was highly enriched in fluorine depending on both the amount of P3 and F and their relative ratio in the films. The biological performance of the films was evaluated against a new widespread and invasive marine biofoulant, the serpulid Ficopomatus enigmaticus. The diatom Navicula salinicola was also assayed as a conventional model organism for comparison. Films richer in P3 better resisted the settlement and promoted the release of calcified tubeworms of F. enigmaticus.
研究了基于含有不同数量聚氧乙烯（P3）或全氟己基乙基（F）悬垂侧链的聚硅氧烷基质的新型光聚合网络薄膜。对于 P3 和 F 含量低于 10wt%的薄膜，其润湿性和弹性模量与光聚合网络基质相似。然而，角分辨 X 射线光电子能谱测量证明，具有 F 悬垂链的薄膜表面高度富集氟，这取决于 P3 和 F 的含量及其在薄膜中的相对比例。该薄膜的生物性能通过一种新型广泛且具有侵袭性的海洋生物污垢物——盘管虫 Ficopomatus enigmaticus 进行了评估。还使用传统模式生物——盐生舟形藻 Navicula salinicola 进行了比较。P3 含量较高的薄膜更能抵抗定居，并促进钙化盘管虫 F. enigmaticus 的释放。
