Preparation of multilayer films using the negative charge of phenylboronic acid and its response to pH change, fructose, and hydrogen peroxide
Preparation of multilayer films using the negative charge of phenylboronic acid and its response to pH change, fructose, and hydrogen peroxide
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DOI：
10.1007/s00396-018-4380-1
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发表时间：
2018-09-01
影响因子：
2.4
通讯作者：
Sato, Katsuhiko
中科院分区：
文献类型：
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作者：
Oide, Yuki;Iwasaki, Miku;Sato, Katsuhiko
使用苯基硼酸（PBA）的功能性层层（LbL）多层膜通常是通过利用PBA和二醇聚合物之间的硼酸酯键作为驱动力来制备的。然而，我们通过PBA和聚阳离子的静电相互作用制备了含PBA的LbL薄膜，使用了聚(丙烯酰胺-ran-3-丙烯酰胺苯基硼酸)(PBA-PAA)和各种聚阳离子，例如聚(烯丙胺)盐酸盐(PAH)、聚(乙烯亚胺)(PEI)、聚(二烯丙基二甲基氯化铵)(PDDA)和聚酰胺胺(PAMAM)树枝状聚合物。多层膜的构建受到PBA的改性比例、聚阳离子的形状、溶液pH值和离子浓度的影响。结果表明多层膜是通过静电相互作用形成的。由含有 PBA-PAA 和 PAH 的 10% PBA 制备的多层膜表现出 pH、果糖和 H2O2 响应，因为这些刺激扰乱了多层膜内部的电荷平衡。这种分解反应与使用硼酸酯键构建的 PBA 多层膜相当。
Functional layer-by-layer (LbL) multilayer films using phenylboronic acid (PBA) have been typically prepared by exploiting the boronate ester bond between PBA and a diol polymer as the driving force. However, we have prepared PBA-containing LbL films through the electrostatic interaction of PBA and polycations, Poly(acrylamide-ran-3-acrylamidephenylboronic acid) (PBA-PAA) and various polycations such as poly(allylamine) hydrochloride (PAH), poly(ethyleneimine) (PEI), poly(diallyldimethylammonium chloride) (PDDA), and polyamidoamine (PAMAM) dendrimer were used. Construction of the multilayer films was influenced by the modification ratio of PBA, the shape of the polycations, solution pH, and the ion concentration. The results showed that the multilayered film was formed by electrostatic interaction. A multilayer film prepared from 10% PBA containing PBA-PAA and PAH showed pH, fructose, and H2O2 responses because these stimuli disturbed the charge balance inside the multilayer films. Such decomposition responses were comparable to that of PBA multilayer films constructed using boronate ester bonds.