| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5186673 | Polymer | 2006 | 4 Pages |
Abstract
Cryogels of non-ionic (hydroxypropyl)methylcellulose, 2-hydroxyethylcellulose, methylcellulose and cationic hydroxyethylcelluloses were prepared for the first time via UV irradiation of moderately frozen systems. The influence of the irradiation time, the concentration of the photoinitiator (4-benzoylbenzyl)trimethylammonium chloride, and the concentration of the polymer solution on the efficiency of the cross-linking process in moderately frozen systems was investigated. It was found that 2-min irradiation at an irradiation dose rate of 5.7Â J/cm2Â min is adequate for cross-linking of 3Â wt.% polymer solutions resulting in high quality cryogel.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Petar Petrov, Elissaveta Petrova, Rayna Stamenova, Christo B. Tsvetanov, Gerard Riess,