Synthesis and characterization of new arylamine chitosan derivatives
β Scribed by Edelio Taboada; Gustavo Cabrera; Galo Cardenas
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 100 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Chitosan is effective at removing platinum from dilute solutions, but sorption properties are significantly affected by the presence of competitor anions, such as chloride and, especially, sulfate anions. Sorption capacities in such complex solutions are enhanced by grafting thiourea through glutara
## Abstract The synthesis of chitosan methylcarbamate (ChMC) and ethylcarbamate (ChEC) is described by using a new methodology. Polymers with substitution degrees up to 63% for ChEC and 68.5% for ChMC were obtained. Derivatives with lower substitutions were acid soluble but those with higher ones w
## Abstract Four novel Schiffβtype chitosan (CTS)βcrown ethers were synthesized through a reaction between ο£ΏNH~2~ in CTS or crosslinked chitosan (CCTS) and ο£ΏCHO in 4β²βformylbenzoβcrown ethers, and four secondaryβaminoβtype CTSβcrown ethers were prepared through the reduced reaction of NaBH~4~, resp