Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2015 Sep:80:498-505.
doi: 10.1016/j.ijbiomac.2015.07.011. Epub 2015 Jul 15.

Efficient method of starch functionalization to bis-quaternary structure unit

Kalpana Chauhan  1 , Jasvinder Kaur  2 , Ankita Kumari  2 , Anita Kumari  3 , G S Chauhan  3
Affiliations

Efficient method of starch functionalization to bis-quaternary structure unit

Kalpana Chauhan et al. Int J Biol Macromol. 2015 Sep.

Abstract

This paper presents the synthesis of bis-quaternary starch by innocuous reagents. For this, starch was functionalized to di-aldehyde structure by periodate oxidation. Aldehyde is reactive and amenable to further derivatization to amine structure. It was functionalized to amine via the modified Leuckart-Wallach reaction. Then, the aminated starch was modified to the quaternary form by the exhaustive methylation. The structural characterization of synthesized compounds was performed using titrimetric analytical estimation, FTIR, (1)H NMR, (13)C NMR, and SEM-EDX. Analytical results showed 58.8% aldehyde content in di-aldehyde starch. The synthesized quaternary derivatives with gemini like structure showed high degree of quaternization 62%. In conclusion, the applied protocol is efficient and revealed high extent of modification with almost good uniformity from the characterization studies.

Keywords: Di-aldehyde starch; Gemini like structure; Quaternary starch.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

MeSH terms

LinkOut - more resources