Dialdehyde starch
| Identifiers | |
|---|---|
| ECHA InfoCard | 100.127.976 |
| MeSH | Dialdehyde+starch |
PubChem CID
|
|
CompTox Dashboard (EPA)
|
|
| Properties | |
| (C6H8O5)n | |
| Appearance | White, opaque crystals |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
| |
Dialdehyde starch is a polysaccharide derived by chemical modification from starch. It is prepared by periodate oxidation of starch.[1] As an aqueous dispersion, it can form a particle gel or a polymer network depending on preparation conditions.[2] Hydrolysis with sulfurous acid yields glyoxal and erythrose.[3]
It has found use in the paper industry, where in it has been shown to improve the wet strength of consumer products like toilet paper and paper towels.[4]
References
- ^ Yu, Jiugao; Chang, Peter R.; Ma, Xiaofei (2010). "The preparation and properties of dialdehyde starch and thermoplastic dialdehyde starch". Carbohydrate Polymers. 79 (2): 296. doi:10.1016/j.carbpol.2009.08.005.
- ^ Veelaert, S.; de Wit, D.; Gotlieb, K. F.; Verhé, R. (1997-02-01). "The gelation of dialdehyde starch". Carbohydrate Polymers. 32 (2): 131–139. doi:10.1016/S0144-8617(96)00160-9. ISSN 0144-8617.
- ^ Wilham, C. A.; McGuire, T. A.; Cleve, J. W. Van; Otey, F. H.; Mehltretter, C. L. (2002-05-01). "Hydrolysis of Dialdehyde Starch. Glyoxal and Erythrose Production in Sulfurous Acid-Barium Sulfite Solutions". ACS Publications. doi:10.1021/i360001a014. Retrieved 2026-01-24.
- ^ US patent 4001032, "Method of Making Nongelling Aqueous Cationic Dialdehyde Starch Compositions"