用于功能粘剂的多巴胺基共聚合物瓶刷:抗聚乙烯在表面工程中的合成,表征和应用
Roland Milatz1,2, Joost Duvigneau1, Gyula Julius Vancso1
1Department of Materials Science and Technology of Polymers, and Department of Sustainable Polymer Chemistry, University of Twente, Enschede 7522 NB, The Netherlands.
ACS applied materials & interfaces
|July 1, 2023
概括
研究人员开发了一种基于甲基醇的新型聚合物,用于修改具有挑战性的多烯表面. 这种以自然为灵感的新材料,可实现强大的表面功能化,并且在聚乙烯上表现出显著的抗化性能,减少了95%的蛋白质吸附.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 表面科学是一门学科.
背景情况:
- 多聚烯是无极的,并且很难在化学上进行修改.
- 大自然利用catechol化学物质对各种表面产生强大的粘附.
- 需要一种生物灵感的方法来实现多烯表面的功能化.
研究的目的:
- 设计和合成含有甲基醇的聚合物用于聚烯表面功能化.
- 为了证明这些高分子的粘合和接种能力.
- 为了在高密度聚乙烯 (HDPE) 表面上实现防性能.
主要方法:
- 合成的聚合物,包括多巴胺甲烯胺 (DOMA),甲基甲酸盐 (MMA) 和2 - - - 2 - - 异基) 乙基甲酸盐 (BIEM).
- 在和HDPE基板上涂的聚合物.
- 使用原子转移激素聚合 (ATRP) 启动的"接种"反应,以连接聚乙烯基醇甲酸 (POEGMA) 链.
- 使用静态接触角度和富里埃变换红外光谱法 (FTIR) 进行表征表面.
- 通过测量光素修饰的牛血清白蛋白 (BSA) 的吸附,评估了抗的性能.
主要成果:
- 含有DOMA的共聚合物的证明粘合能力.
- 在40%的DOMA.基板上获得连贯的聚甲基酸 (PMMA) 薄膜.
- 成功将POEGMA层移植到HDPE基板上,通过接触角度和FTIR确认.
- 与对照组相比,在功能化HDPE上实现了95%的BSA蛋白质吸附率降低.
- 在共聚物中鉴定出30%的DOMA含量是最佳的抗污染性能.
结论:
- 基于catechol的聚合物有效地功能化了具有挑战性的多烯表面.
- 开发的方法提供了强大的附着性和可调整的表面性能.
- 在HDPE上取得了显著的防性能,证明了海洋和生物医学应用的潜力.
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