کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1402804 | 984787 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Hydrogels of β-cyclodextrin crosslinked by acylated poly(ethylene glycol): Synthesis and properties Hydrogels of β-cyclodextrin crosslinked by acylated poly(ethylene glycol): Synthesis and properties](/preview/png/1402804.png)
Networks of β-cyclodextrin have been prepared by reaction with acylated poly(ethylene glycol) with a molar mass of 600 g/mol. Samples with different β-cyclodextrin/poly(ethylene glycol) ratios: 1/4, 1/6, 1/8 and 1/10 have been prepared. Both components are bonded by ester groups, resulting in a network that can be degraded by hydrolysis in basic and acidic media. The maximum stability of the hydrogels is reached at pH 4. The hydrogel percentage water content depends on β-cyclodextrin content ranging from 82 to 98, and the swelling data obtained for these hydrogels fit well with a second order kinetics. The sorption behavior of these hydrogels has been tested by employing 1-naphthol as model molecule. The sorption capacity is close to other cyclodextrin networks previously reported and depends on the hydrogel composition and the concentration of 1-naphthol.
Journal: European Polymer Journal - Volume 45, Issue 3, March 2009, Pages 674–679