Synthesis of a new kind of carbohydrate-modified polysiloxanes and its morphological transition of molecular aggregates in water
Ma, Q; Feng, S
| HERO ID | 4947205 |
|---|---|
| In Press | No |
| Year | 2006 |
| Title | Synthesis of a new kind of carbohydrate-modified polysiloxanes and its morphological transition of molecular aggregates in water |
| Authors | Ma, Q; Feng, S |
| Journal | Carbohydrate Polymers |
| Volume | 65 |
| Issue | 3 |
| Page Numbers | 321-326 |
| Abstract | Allylamides of gluconic acid were synthesized by the reaction of allylamine with lactones using dimethyl formamide as a solvent. In this reaction, hydroxyl groups were protected by trimethylsilyl groups via three different pathways that connect sugar units onto the polysiloxane chains. A series of well-defined polysiloxanes with pendent sugar units were prepared by hydrosilation of the trimethylsilyl-protected allylamides with hydric polysiloxanes in the presence of the Platinum dioxide as a catalyst. The catalytic activity and selectivity were discussed in detail. All products were characterized by FT-IR, H-1 NMR, and C-13 NMR spectroscopy, respectively. Furthermore, the shapes of molecular aggregates of target polymers in water were studied by transmission electron microscopy, which reveals that the transitions of micelles-morphologies from spheres to vesicles can be controlled by adjusting hydrogen content of primary materials or by changing initial solvents. (c) 2006 Elsevier Ltd. All rights reserved. |
| Doi | 10.1016/j.carbpol.2006.01.036 |
| Wosid | WOS:000240154300011 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | carbohydrate-modified polysiloxanes; hydrosilation; molecular aggregates; vesicles |