| Title | Self-assembly of amino-acid-based dendrons: Organogels and lyotropic and thermotropic liquid crystals |
| Authors | Kuang, Gui-Chao Ji, Yan Jia, Xin-Ru Li, Yan Chen, Er-Qiang Wei, Yen |
| Affiliation | Peking Univ, Dept Polymer Sci & Engn, Coll Chem & Mol Engn, Minist Educ, Beijing 100871, Peoples R China. Peking Univ, Key Lab Polymer Chem & Phys, Coll Chem & Mol Engn, Minist Educ, Beijing 100871, Peoples R China. Drexel Univ, Dept Chem, Philadelphia, PA 19104 USA. |
| Keywords | 2-COMPONENT DENDRITIC GEL SUPRAMOLECULAR POLYMERS PHYSICAL GELS ONE-COMPONENT DENDRIMERS GELATORS DERIVATIVES GELATION |
| Issue Date | 2008 |
| Publisher | chemistry of materials |
| Citation | CHEMISTRY OF MATERIALS.2008,20,(13),4173-4175. |
| Abstract | A study was conducted to synthesized the two similar dendrons with different focal groups and to investigate their mesophase behavior, such as gels and liquid crystals. The dendritic portion was based on two natural amino acids of glycine and aspartic acid were synthesized. It was found that both of the modified dendrons gelled common organic solvents, but with different structures of molecular packing. It was investigated that one of the dendron exhibits versatile properties of lyotropic and thermotropic liquid crystals. The structure of the dendron focal point has a huge influence on the gelation behavior. The morphology of the xerogels of two dendrons was examined under transmission electron microscopy. X-ray diffraction experiments on the xerogel were performed to elucidate the possible molecular packing patterns of the gels form dendrons. It is concluded that dendron displays gel, lyotropic,and thermotropic Liquid crystal states with a hexagonal columnar arrangement. |
| URI | http://hdl.handle.net/20.500.11897/151454 |
| ISSN | 0897-4756 |
| DOI | 10.1021/cm8006952 |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 高分子化学与物理教育部重点实验室 |
