Cyclodextrin Polymers (CDP)
Cyclodextrin polymer (CDP) is a three-dimensionally cross-linked compound that has both solubility in water and organic solvents. CDP is employed in a lot of fields due to high adsorption of SDS, polyphenols, flavonoids, and indoles.
Features
- Soluble in both aqueous and organic solvents
- Allows selective inclusion of light organic molecules
- Gradually releases compound trapped in the inclusion complex
- Allows easy release of trapped compounds within methanol and other organic solvents
Applications
Adsorption Rate of Bisphenol A
|
|
α-CDP |
β-CDP |
γ-CDP |
|
Adsorption rate (%) |
20 - 40 |
60 - 80 |
40 - 60 |
Adsorption Rate of SDS by Cyclodextrin Polymer
Temperature Effects
|
Temperature |
20°C |
4°C |
|
Adsorption Rate |
92.4 % |
90.4 % |
pH and Sodium Effects
|
Solvent |
H2O |
0.1M HCI |
0.1M NaOH |
0.1M NaCl |
|
Adsorption rate |
92.4 % |
99.7 % |
99.9 % |
99.4 % |
Adsorption Rate of Various Surfactants by Cyclodextrin Polymer
|
Surfactant |
Polyoxyethylene |
Sodium Alkylbenzene Sulfonate |
Cetylpyridinium Chloride |
||||||
|
CDP |
α |
β |
γ |
α |
β |
γ |
α |
β |
γ |
|
Adsorption rate |
96.3 % |
99.3 % |
99.2 % |
96.4 % |
94.3 % |
88.4 % |
94.2 % |
96.6 % |
93.8 % |
Adsorption Rate of Organic Compounds by Cyclodextrin Polymer
|
Organic Compound |
α-CDP |
β-CDP |
γ-CDP |
|
Flavone |
96.5 % |
98.9 % |
97.1 % |
|
Flavonol |
73.9 % |
93.2 % |
83.8 % |
|
Flavanone |
92.3 % |
97.8 % |
94.7 % |
|
Gallic acid |
82.2 % |
59.6 % |
65.0 % |
|
Catechin |
56.0 % |
97.5 % |
66.7 % |
|
Epigallocatechin gallate |
90.5 % |
83.2 % |
86.6 % |
|
Quercetin |
96.9 % |
98.5 % |
97.9 % |
|
Hesperidin |
35.1 % |
86.1 % |
77.7 % |
|
Daidzin |
61.1 % |
93.4 % |
86.4 % |
|
Genistin |
92.0 % |
96.7 % |
96.2 % |
|
Indoles |
90.6 % |
93.6 % |
90.1 % |
|
Indoleacetic acid |
85.6 % |
87.6 % |
72.8 % |
|
Yohimbine |
70.2 % |
93.2 % |
60.4 % |
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