Poly(3-hexylthiophene) Grains Synthesized by Solvent-Free Oxidative Coupling Polymerization and Their Use as Light-Responsive Liquid Marble Stabilizer
Poly(3-hexylthiophene) Grains Synthesized by Solvent-Free Oxidative Coupling Polymerization and Their Use as Light-Responsive Liquid Marble Stabilizer
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DOI：
10.1021/acs.macromol.8b02426
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发表时间：
2019-01-22
期刊：
影响因子：
5.5
通讯作者：
Fujii, Syuji
中科院分区：
文献类型：
--
作者：
Inoue, Hiroki;Hirai, Tomoyasu;Fujii, Syuji
以FeCl 3为氧化剂，采用无溶剂氧化偶联聚合法合成了聚3-己基噻吩颗粒。光学和扫描电子显微镜的研究证实生产亚毫米级的粗糙表面的非典型颗粒。溶解性测试、傅立叶变换红外光谱和H-1核磁共振研究表明，聚（3-己基噻吩）的支化和交联。元素微量分析和X射线光电子能谱研究证实聚（3-己基噻吩）颗粒掺杂了氯离子。聚（3-己基噻吩）颗粒由于具有己基侧链而表现出疏水性，其临界表面张力为25.9mNm（-1）。聚（3-己基噻吩）显示出光热性质，并且近红外激光照射到聚（3-己基噻吩）颗粒诱导了高达664 ℃的快速温度升高。聚（3-己基噻吩）颗粒可以作为一个有效的液体大理石稳定剂与光热性能，和液体大理石表现出运动的水面上，由于近红外激光诱导的Marangoni流。
Solvent-free oxidative coupling polymerization of 3-hexylthiophene using FeCl3 oxidant was conducted to synthesize poly(3-hexylthiophene) grains. Optical and scanning electron microscopy studies confirmed production of submillimeter-sized atypical grains with rough surfaces. Solubility test, Fourier transform infrared spectroscopy, and H-1 nuclear magnetic resonance studies indicated the branching and cross-linking of the poly(3-hexylthiophene). Elemental microanalysis and X-ray photoelectron spectroscopy studies confirmed that the poly(3-hexylthiophene) grains were doped with chloride ions. The poly(3-hexylthiophene) grains showed hydrophobic character due to hexyl side chains, and the critical surface tension was determined to be 25.9 mN m(-1). The poly(3-hexylthiophene) showed a light-to-heat photothermal property, and near-infrared laser irradiation to the poly(3-hexylthiophene) grains induced a rapid temperature increase up to 664 degrees C. The poly(3-hexylthiophene) grains can work as an effective liquid marble stabilizer with a photothermal property, and the liquid marble exhibited locomotion on a water surface due to near-infrared laser-induced Marangoni flow.