Synthesis of cationic alkylated chitosans and an investigation of their rheological properties and interaction with anionic surfactant

S J Burr; P A Williams; I Ratcliffe

doi:10.1016/j.carbpol.2018.08.105

Synthesis of cationic alkylated chitosans and an investigation of their rheological properties and interaction with anionic surfactant

Carbohydr Polym. 2018 Dec 1:201:615-623. doi: 10.1016/j.carbpol.2018.08.105. Epub 2018 Aug 28.

Authors

S J Burr¹, P A Williams², I Ratcliffe³

Affiliations

¹ Centre for Water Soluble Polymers, Wrexham Glyndwr University, Wrexham LL11 2AW, Wales, UK. Electronic address: S.Burr@glyndwr.ac.uk.
² Centre for Water Soluble Polymers, Wrexham Glyndwr University, Wrexham LL11 2AW, Wales, UK. Electronic address: p.a.Williams@glyndwr.ac.uk.
³ Centre for Water Soluble Polymers, Wrexham Glyndwr University, Wrexham LL11 2AW, Wales, UK. Electronic address: i.ratcliffe@glyndwr.ac.uk.

PMID: 30241861
DOI: 10.1016/j.carbpol.2018.08.105

Abstract

Two methods were used to alkylate high M_W chitosan with glycidyltrimethylammonium chloride (GTAC) in order to produce chitosan derivatives that are water-soluble throughout the pH range. In addition, a novel chitosan derivative was created by alkylating one of the products with the GTAC analogue Quab 342 containing C12 alkyl chains. The phase behaviour and rheological characteristics of the chitosan derivatives were studied in the presence of anionic surfactant. The derivatives were found to form soluble complexes at low and high SDS concentrations and that the Quab 342 derivative was able to form gels.

Keywords: Anionic surfactant interactions; Chitosan; Quaternisation; Rheology.