| 摘要 |
<p>The invention relates to a method for cross-linking of agar products in an alkaline surrounding. According to the Invention divinylsulfone is used as cross-linking agent in a manner known per se. The cross-linking is performed at room temperature at pH > 11 in the presence of a reducing agent, and unreacted vinyl groups are deactivated by means of a neutral hydrophilic deactivating substance comprising several hydroxyl groups. The cross-linking was stable even at a pH as high as 13 during a test period of 15 days.</p> |
