Supramolecular Hydrogels Based on L-Phenylalanine Derivatives with a Positively Charged Terminal Group
作者:Xin-Jian Fu、Hua Zhang、Si-Kai Zhou、Shao-Bing Liu、Fu-Quan Guo、Hong Wang、Ya-Jiang Yang
DOI:10.1002/hlca.200900137
日期:2010.1
A new hydrogelator based on L‐phenylalanine with a long hydrophobic chain and positively charged terminus was synthesized, and its gelation behavior in H2O was investigated. Polarized optical microscopy (POM), field emission scanning electron microscopy (FE‐SEM), and X‐ray diffraction (XRD) results indicate that the hydrogelator self‐assembles into fibres‐like aggregates which then lead to the formation
合成了一种新的基于L-苯丙氨酸的疏水化剂,该疏水剂具有长的疏水链和带正电荷的末端,并研究了其在H 2 O中的胶凝行为。偏振光学显微镜(POM),场发射扫描电子显微镜(FE‐SEM)和X射线衍射(XRD)结果表明,水凝胶仪可自组装成纤维状聚集体,然后导致形成水凝胶。1个水凝胶和水溶液的H-NMR和CD光谱表明,酰胺基团之间的分子间H-键是凝胶化的驱动力。一项以ANS(8-苯胺基萘-1-磺酸)为探针的发光研究表明,长链之间的疏水相互作用是凝胶化的驱动力。因此,证明了水凝胶化剂自组装成纤维状聚集体,然后通过氢键和疏水相互作用形成超分子水凝胶。