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首页> 外文期刊>RSC Advances >Waterborne UV-curable comb-shaped (meth) acrylate graft copolymer containing long fluorinated and/or polysiloxane side chains
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Waterborne UV-curable comb-shaped (meth) acrylate graft copolymer containing long fluorinated and/or polysiloxane side chains

机译：含有长氟化和/或聚硅氧烷侧链的水性UV固化梳形梳形（甲基）丙烯酸酯接枝共聚物

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摘要

A series of waterborne UV-curable comb-shaped (meth) acrylate graft copolymers containing long fluorinated and/or siloxane side chains were synthesized by conventional radical copolymerization of a novel mono-methacryloyloxy terminated fluorinated macromonomer (PHFA-GMA) and/or polysiloxane macromonomer (SiOHMAC) with (meth) acrylate monomers. The separate effects of PHFA-GMA and SiOHMAC, as well as the synergic effect of these two components, on the properties, especially the surface properties were investigated in detail. A hydrophobic surface could be obtained with extremely low content of PHFA-GMA and/or SiOHMAC due to the strong tendency of the macromonomers to migrate towards the outmost layer, resulting in abundant enrichment of fluorine and silicon atoms on the surface. XPS (X-ray photoelectron spectroscopy) results revealed that for a given weight of the two macromonomers, Si atomic concentration of the copolymer modified by SiOHMAC is higher than F atomic concentration of the copolymer modified by PHFA-GMA. AFM (atomic force microscopy) images showed that surface of the copolymer modified by SiOHMAC is rougher than that modified by PHFA-GMA. Compared to PHFA-GMA, SiOHMAC had higher efficiency and effectiveness in creating hydrophobic surfaces. In addition, the influence of PHFA-GMA and/or SiOHMAC on the physical properties, such as water dispersion particle size, water absorption, pencil hardness, adhesion, mechanical properties and thermal properties were also investigated. The novel comb-shaped copolymers prepared via conventional radical polymerization not only had excellent properties but also have potential applications in large scale industrialization.
机译：通过常规的单甲基丙烯酰氧基封端的氟化大分子单体（PHFA-GMA）和/或聚硅氧烷大分子单体，通过常规自由基共聚合合成含有长氟化和/或硅氧烷侧链的水性紫外线固化梳形（甲基）丙烯酸酯接枝共聚物。 （SiOHMAC）具有（甲基）丙烯酸酯单体。详细研究了PHFA-GMA和SiOHMAC的单独效果，以及这两种组分对性质，特别是表面性质的协同作用。由于大分子单体迁移到最大层的强度倾向，可以获得极低的PHFA-GMA和/或SiOHMAC的疏水表面，导致表面上丰富的氟和硅原子的富集。 XPS（X射线光电子能谱）结果显示，对于两种大分子单体的给定重量，由SiOHMac改性的共聚物的Si原子浓度高于通过PHFA-GMA改性的共聚物的F原子浓度。 AFM（原子力显微镜）图像显示通过SiOHMAC改性的共聚物的表面比通过PHFA-GMA改性的粗糙。与PHFA-GMA相比，SiOHMAC在创造疏水表面方面具有更高的效率和有效性。此外，还研究了PHFA-GMA和/或SiOHMAC对物理性质的影响，例如水分散粒度，吸水，铅笔硬度，粘附，机械性能和热性质。通过常规自由基聚合制备的新型梳形共聚物不仅具有优异的性能，而且具有大规模工业化的潜在应用。

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  • 来源
    《RSC Advances》 |2016年第41期|共12页
  • 作者

    Tan Jianquan; Liu Weiqu; Wang Zhengfang;

  • 作者单位

    Chinese Acad Sci Guangzhou Inst Chem Guangzhou 510650 Guangdong Peoples R China;

    Chinese Acad Sci Guangzhou Inst Chem Guangzhou 510650 Guangdong Peoples R China;

    Chinese Acad Sci Guangzhou Inst Chem Guangzhou 510650 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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