Richard A. Venditti,Joel J. Pawlak,Abdus Salam,Khaled Fathy El-Tahlawy
申请号：
US13052463
公开号：
US08975387B1
申请日:
2011.03.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
Compositions of matter are provided that include chitosan and a modified carbohydrate. The modified carbohydrate includes a carbohydrate component and a cross linking agent. The modified carbohydrate has increased carboxyl content as compared to an unmodified counterpart carbohydrate. A carboxyl group of the modified carbohydrate is covalently bonded with an amino group of chitosan. The compositions of matter provided herein may include cross linked starch citrate-chitosan and cross linked hemicellulose citrate-chitosan, including foams thereof. These compositions yield excellent absorbency and metal chelation properties. Methods of making cross linked modified carbohydrate-chitosan compounds are also provided.
