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首页> 外文期刊>Polymers for advanced technologies >Reverse hydrophobic PDMS surface to hydrophilic by 1‐step hydrolysis reaction
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Reverse hydrophobic PDMS surface to hydrophilic by 1‐step hydrolysis reaction

机译：通过1步水解反应反转疏水性PDMS表面以亲水性

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摘要

>Hydrophilic modification on the surface of polymer polydimethylsiloxane (PDMS) material is a key step for its application in biomaterial, bioengineering, and so on. In this article, a novel and effective method was proposed to reverse hydrophobic surface to hydrophilic by 1‐step hydrolysis of Si―O bond to produce hydrophilic hydroxyl group. The hydrophilizing reagent 2‐(trimethylsiloxy) ethyl methacrylate (TMSEMA) was used during the copolymerization of polydimethylsiloxane prepolymer (DMS U21). The prepared PDMS film was subjected to 1‐step surface hydrophilic reversal treatment using KOH solution to produce hydroxyl groups on the surface. The contact angle, attenuated total reflection Fourier transform infrared spectra, and equilibrium water content (EWC) measurements were conducted on PDMS films. The results showed that TMSEMA content had no obvious impact on the contact angle and EWC value of untreated PDMS. After reversal treatment, the contact angle decreased from 94° to 15°, and the EWC value increases to 10% when the TMSEMA content was 15?wt%. The spectrum proved that the reverse reaction produced hydroxyl and carboxylate on the surface. The hydrophilic stability, surface morphology, and protein adsorption properties of PDMS film were also investigated. This study can provide new ideas and further reference for improving the hydrophilicity of PDMS surface.
机译： >高分子聚二甲基硅氧烷（PDMS）材料表面上的亲水性改性是其在生物材料，生物工程等中应用的关键步骤。在本文中，提出了一种新的和有效的方法来将疏水表面反转以通过Si-O键的1步水解来逆转疏水性表面以产生亲水性羟基。在聚二甲基硅氧烷预聚物的共聚合（DMS U21）的共聚合期间使用亲水化试剂2-（三甲基硅氧烷）甲基丙烯酸乙酯（TMEEMA）。使用KOH溶液对制备的PDMS膜进行1步表面亲水反转处理，在表面上产生羟基。在PDMS薄膜上进行接触角，减弱的总反射傅里叶变换红外光谱和平衡水含量（EWC）测量。结果表明，TMMEMA含量对未处理的PDMS的接触角和EWC值没有明显影响。在逆转处理后，接触角从94°降低到15°，当TMESema含量为15℃时，EWC值增加到10％。该光谱证明了反应在表面上产生羟基和羧酸盐。还研究了PDMS膜的亲水性稳定性，表面形态和蛋白质吸附性能。该研究可以为改善PDMS表面的亲水提供新的思路和进一步参考。

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  • 作者

    Zhang Wei; Kalulu Mulenga; Wang Xiao‐Hong; Xia Xue‐Ke; Han Xue‐Lian; Jiang Yong;

  • 作者单位

    School of Chemistry and Chemical EngineeringJiangsu province Hi‐Tech Key Laboratory for Biomedical Research Southeast UniversityNanjing Jiangsu 211189 PR China;

    School of Chemistry and Chemical EngineeringJiangsu province Hi‐Tech Key Laboratory for Biomedical Research Southeast UniversityNanjing Jiangsu 211189 PR China;

    School of Chemistry and Chemical EngineeringJiangsu province Hi‐Tech Key Laboratory for Biomedical Research Southeast UniversityNanjing Jiangsu 211189 PR China;

    School of Chemistry and Chemical EngineeringJiangsu province Hi‐Tech Key Laboratory for Biomedical Research Southeast UniversityNanjing Jiangsu 211189 PR China;

    R&

    D CenterHydron Contact Lens Co. LtdDanyang Jiangsu 212331 PR China;

    School of Chemistry and Chemical EngineeringJiangsu province Hi‐Tech Key Laboratory for Biomedical Research Southeast UniversityNanjing Jiangsu 211189 PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    hydrophilic modification; polydimethylsiloxane; reversal technique; TMSEMA;

    机译：亲水改性;聚二甲基硅氧烷;逆转技术;TMEEMA;

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