The relationship between structures and dynamic surface properties of perfluoroalkyl containing polymers
The relationship between structures and dynamic surface properties of perfluoroalkyl containing polymers
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DOI：
10.1016/s0022-1139(00)83594-0
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发表时间：
1991-09
影响因子：
1.9
通讯作者：
T. Maekawa;S. Kamata;M. Matsuo
中科院分区：
文献类型：
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作者：
T. Maekawa;S. Kamata;M. Matsuo
制备了具有Rf基团不同侧链的同源系列丙烯酸聚合物（式1）。用DSC测量了rf聚集体在聚合物中的熔化温度，用x射线散射分析观察了它们在薄膜中的结构。这些结构数据与它们的动态表面张力有关，这些张力是由威廉板技术使用几种极性液体测量的。在熔融温度较高的聚合物中，观察到较高的后退接触角，并观察到侧链以晶体和片层结构形式自排列的潜在能力。具有这种侧链的聚合物的表面被发现是稳定的，即使暴露在各种条件下也能保持其初始的疏水性。这些结果表明，Rf基团的聚集和自排列倾向对控制其动态表面性质很重要。本文将讨论由这种聚合物组成的薄膜的模型结构和增强疏水表面的原理。
A homologous series of acrylic polymers with various side chains of Rf group were prepared (eq. 1).The melting temperatures of Rf-aggregates in the polymers were measured by DSC, and their structures in the thin film were observed by the X-ray scattering analysis. These structural data were related to their dynamic surface tensions measured by the Wilhelmy plate technique using several polar liquids. Higher receding contact angle were observed in the case of the polymer with higher melting temperatures and the potential abilities of self-alignment of the side chains in the forms of crystals and lamellae structures. The surfaces of the polymer with such side chains were found to be stable and keep their initial hydrophobic properties even after exposed to various conditions. These results suggested that the tendency of aggregation and self-alignment of Rf groups were important to control their dynamic surface properties. The model structures of the thin film composed of such polymers and the principle of the enhanced hydrophobic surfaces will be discussed.