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Surface Modification of Polyethersulfone (PES) with Ozone
Ozone: Science & Engineering ( IF 2.7 ) Pub Date : 2018-11-18 , DOI: 10.1080/01919512.2018.1547185
Shin Lutondo 1 , Marc Toro 1 , Shreen Sachdev 1 , Joel Shertok 1 , Alla Bailey 1 , Michael Mehan 2 , Surendra K. Gupta 3 , Gerald A. Takacs 1
Affiliation  

ABSTRACT Polyethersulfone (PES) is a thermoplastic polymer able to maintain its toughness and stability at high temperatures with applications, such as, in water ultrafiltration. This research focused on altering the surface properties of PES film, making it more water-liking, hydrophilic, and repulsive to organic waste. The oxidative technique used ozone to modify the surface of PES as a function of treatment time. Atomic force microscopy (AFM) measurements did not show significant changes in surface roughness compared to untreated PES. X-ray photoelectron spectroscopy (XPS) detected an increase in concentration of O atoms up to ca. 25 atomic % (at %) and the formation of primarily C–O and sulfonate/sulfate groups due to the reaction of ozone with the C–S bond in PES. The water contact angle (CA) decreased by ca. 28% indicating an increase in hydrophilicity as a result of the formation of polar oxygen moieties on the surface.

中文翻译:

臭氧对聚醚砜 (PES) 的表面改性

摘要 聚醚砜 (PES) 是一种热塑性聚合物,能够在高温下保持其韧性和稳定性,用于水超滤等应用。这项研究的重点是改变 PES 薄膜的表面特性,使其更喜欢水、亲水和排斥有机废物。氧化技术使用臭氧来修饰 PES 的表面,作为处理时间的函数。与未经处理的 PES 相比,原子力显微镜 (AFM) 测量未显示表面粗糙度发生显着变化。X 射线光电子能谱 (XPS) 检测到 O 原子的浓度增加了约 由于臭氧与 PES 中的 C-S 键反应,25 原子百分比 (at %) 和主要形成 C-O 和磺酸盐/硫酸盐基团。水接触角 (CA) 减少了大约。
更新日期:2018-11-18
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