Convenient preparation of stimulus-responsive molecular layers containing anthracene molecules to control surface properties
Convenient preparation of stimulus-responsive molecular layers containing anthracene molecules to control surface properties
复制标题
方便制备含有蒽分子的刺激响应分子层以控制表面性质
DOI：
10.1016/j.colsurfa.2021.127547
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发表时间：
2021-09-24
影响因子：
5.2
通讯作者：
Matsuzawa, Yoko
中科院分区：
文献类型：
--
作者：
Aizawa, Miho;Akiyama, Haruhisa;Matsuzawa, Yoko
为了通过在材料表面上沉积分子来控制表面性质，堆叠分子的官能团的选择是至关重要的。通过在分子层中引入蒽，其促进光二聚和在光照射或加热时的热/裂解，可以形成能够改变分子层组成的刺激响应性表面。在本研究中，我们改进了蒽刺激响应分子层的制备工艺，以便于根据预期目的设计分子层。这是通过采用酸碱相互作用来形成分子层来实现的，每个层具有不同的功能。在堆叠的分子层中诱导蒽二聚体的热/光裂解反应。与胺分子堆叠的多层膜在裂解反应上表现出不同的行为，并且接触角变化，这取决于分子的类型。覆盖有分子层的表面上的润湿性响应于刺激而改变，证明了刺激响应表面的成功制造。所设计的热响应和光响应分子层可以潜在地扩展作为表面条件的控制系统的实际应用范围。
For controlling the surface properties by depositing molecules on the material surface, the selection of the functional groups of the stacked molecules is crucial. By introducing anthracenes in the molecular layer, which promote photodimerization and thermal/cleavage on photoirradiation or heating, it is possible to form a stimuliresponsive surface that enables changes in the molecular layer composition. In this study, we improve the fabrication process of the stimulus-responsive molecular layer with anthracene in order to facilitate the design of molecular layers according to the desired purpose. This is achieved by employing acid-base interactions for forming the molecular layers, with different functions for each layer. Thermal/photocleavage reactions of anthracene dimers are induced in the stacked molecular layer. Multilayers stacked with amine molecules exhibit different behavior on the cleavage reaction and the contact angle varies, depending on the type of molecules. The wettability on the surface covered with the molecular layer changes in response to the stimulation, proving the successful fabrication of a stimuli-responsive surface. The designed thermo- and photoresponsive molecular layer can potentially expand the scope of practical application as a control system for surface conditions.