| Cross-linking is one of the oldest methods for the chemical modification of polymers. Soluble glycans can be reversibly or irreversibly cross-linked to afford insoluble products or soluble materials with higher effective molecular weights, gel-forming ability, enhanced viscosities, improved stabilities or other altered features (for recent examples, see references below). Various degrees (typically between 1-20 percent) of cross-linking can be introduced into polysaccharides. Some of the most common cross-linking agents include di- and trifunctional reagents, such as epichlorohydrin, bisepoxides, dihalogenated reagents, formaldehyde, s-triazine, etc. We prepare cross-linked materials on a special order basis, using the homobifunctional cross-linking units indicated here, as well as other homobifunctional and heterobifunctional cross-linking reagents. Please inquire |
