Preparation of tetrafluoro‐λ6‐sulfanyl bridged‐bonding perfluoroalkyl styrene and its emulsion copolymerization with acrylate monomers for cotton fabrics finishing,Journal of Applied Polymer Science

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Preparation of tetrafluoro‐λ6‐sulfanyl bridged‐bonding perfluoroalkyl styrene and its emulsion copolymerization with acrylate monomers for cotton fabrics finishing
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-08-03 , DOI: 10.1002/app.49687
Kexin Liu ₁ , Lei Chen ₁ , Zhanxiong Li _{1,

2}

Affiliation

4‐(Perfluorobutyl)styrene, 4‐(Perfluorohexyl)styrene, 4‐[Perfluorobutyl(tetrafluoro‐λ⁶‐sulfanyl)]styrene (C₄F₉SF₄styrene), and 4‐[Perfluorohexyl(tetrafluoro‐λ⁶‐sulfanyl)]styrene (C₆F₁₃SF₄styrene) were prepared in two or three steps. The short‐chain perfluoroalkyl groups are modified through the insertion of tetrafluoro‐λ⁶‐sulfanyl linked groups (SF₄). The prepared perfluoroalkyl styrene acts as functional monomers to react with butyl acrylate, methyl methacrylate, and hydroxyethyl methacrylate for emulsion copolymerization to obtain side‐chain fluoropolymers. The long‐chain fluoropolymer formed in contrast to the tetrafluorosulfanyl (SF₄) modified ones. The emulsions were applied on cotton fabrics to give hydrophobicity. The result showed that the fabrics treated with tetrafluorosulfanyl‐modified fluoropolymers were more hydrophobic, indicating that the introduction of SF₄ was beneficial to provide lower surface energy and obtain better water repellent performance. The water contact angles record the varying degrees of variation in polymer degradation under UV exposure. The result showed that, as the perfluoroalkyl is bonded by SF₄, when comparing with the carbon‐chain perfluoroalkyl polymer, the tetrafluorosulfanyl‐modified fluoropolymer is more degradable during UV irradiation.

中文翻译：

四氟-λ6-硫烷基桥联全氟烷基苯乙烯的制备及其与丙烯酸酯单体的乳液共聚合用于棉织物的整理

4-（全氟丁基）苯乙烯，4-（全氟己基）苯乙烯，4- - [全氟（四氟-λ ⁶硫烷基）]苯乙烯（C ₄ ˚F ₉ SF ₄苯乙烯），和4 - [全氟己基（四氟-λ ⁶硫烷基）]苯乙烯（C ₆ ˚F ₁₃ SF ₄苯乙烯）在两个或三个步骤制备。短链全氟烷基通过四氟λ的插入改性⁶硫烷基连接的基团（ SF ₄）。制备的全氟烷基苯乙烯用作功能单体，与丙烯酸丁酯，甲基丙烯酸甲酯和甲基丙烯酸羟乙酯反应，进行乳液共聚，得到侧链含氟聚合物。形成对比的tetrafluorosulfanyl（长链的含氟聚合物 SF ₄）改性的。将乳液施加到棉织物上以赋予疏水性。结果表明，与tetrafluorosulfanyl改性的含氟聚合物处理的织物是更疏水的，这表明引进 SF ₄有助于降低表面能并获得更好的防水性能。水接触角记录了在紫外线照射下聚合物降解的变化程度。结果表明，随着全氟烷基被键合 SF ₄，与碳链全氟烷聚合物比较时，所述tetrafluorosulfanyl改性的氟聚合物是UV照射期间更可降解的。

更新日期：2020-10-08

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