McKetta Department of Chemical Engineering, The University of Texas Austin, 200 East Dean Keeton Street, Austin, Texas 78712, United States.
ACS Appl Mater Interfaces. 2013 May;5(9):3794-802. doi: 10.1021/am400455p. Epub 2013 Apr 24.
We report here a synthetic approach to prepare poly(methyl methacrylate)-polydopamine diblock (PMMA-PDA) and triblock (PDA-PMMA-PDA) copolymers combining mussel-inspired catecholic oxidative chemistry and atom transfer radical polymerization (ATRP). These copolymers display very good solubility in a range of organic solvents and also a broad band photo absorbance that increases with increasing PDA content in the copolymer. Spin-cast thin films of the copolymer were stable in water and showed a sharp reduction (by up to 50%) in protein adsorption compared to those of neat PMMA. Also the peak decomposition temperature of the copolymers was up to 43°C higher than neat PMMA. The enhanced solvent processability, thermal stability and low protein adsorption characteristics of this copolymer makes it attractive for variety of applications including antifouling coatings on large surfaces such as ship hulls, buoys, and wave energy converters.
我们在这里报告了一种通过贻贝类启发的儿茶酚氧化化学和原子转移自由基聚合（ATRP）相结合来制备聚（甲基丙烯酸甲酯）-聚多巴胺二嵌段（PMMA-PDA）和三嵌段（PDA-PMMA-PDA）共聚物的方法。这些共聚物在一系列有机溶剂中具有很好的溶解性，并且随着共聚物中 PDA 含量的增加，其光吸收带也会变宽。共聚物的旋涂薄膜在水中稳定，与纯 PMMA 相比，其蛋白质吸附量急剧减少（最多减少 50%）。此外，共聚物的峰值分解温度比纯 PMMA 高 43°C。这种共聚物具有增强的溶剂加工性、热稳定性和低蛋白质吸附特性，使其在各种应用中具有吸引力，包括船体、浮标和波浪能转换器等大型表面的防污涂料。
