| Autor: |
Cong, Ri Min, Yu, Huai Qing, Yang, Yan Gong, Yang, Si Yi, Li, Jiao, Si, Wei Meng |
| Zdroj: |
Advanced Materials Research; March 2015, Vol. 1094 Issue: 1 p41-48, 8p |
| Abstrakt: |
A dumbbell-shaped polyrotaxane based on polytetrahydrofuran bis (3-aminopropyl) terminated and α-cyclodextrins using polyamidoamine (PAMAM) dentrimers as bulky stoppers was successfully prepared. The 1H NMR results show that the peaks of α-CDs in these polyrotaxanes are broadened compared with pure α-CDs. Wide-angle X-ray diffraction (XRD) measurements of the resulting polyrotaxanes suggest to produce a channel-type crystalline structure of inclusion complex. Thermogravimetric analysis (TGA) of the resultant polyrotaxanes show that α-CDs are significantly stabilized by the formation of the inclusion complexes. |
| Databáze: |
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