甲基丙烯酸酯
甲基丙烯酸甲酯
材料科学
共聚物
原子转移自由基聚合
X射线光电子能谱
高分子化学
聚合物
化学工程
聚合
溶剂
接触角
复合材料
有机化学
化学
工程类
作者
Yudi Guo,Dewei Tang,Zongqiang Gong
摘要
We present the fabrication of superhydrophobic surfaces by electrospraying structure controlled poly(methyl methacrylate-bromine) (PMMA-Br) homopolymer and degree of fluorination controlled poly(methyl methacrylate)-b-poly(dodecafluoroheptyl methacrylate) (PMMA-b-PDFMA) copolymers synthesized via atom transfer radical polymerization (ATRP). The flow rate has great effects on the surface hydrophobicity of PMMA50.6, and superhydrophobic surface was obtained at a higher flow rate of 5 μL/min. For fluorinated diblock copolymers, superhydrophobic surfaces can be obtained by electrospraying PMMA50.6-b-PDFMA0.8 and PMMA147.9-b-PDFMA17.5 at the selected flow rates. X-ray photoelectron spectroscopy (XPS) detections reveal that, during the film formation, more hydrophobic surfaces would be fabricated due to the surface segregations of C–C and C–H groups with THF as solvent instead of C–O–C═O group with DMF as solvent. This investigation may be of great value in fabricating superhydrophobic polymer materials.
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