Synthesis of a castor oil-based quaternary ammonium surfactant and its application in the modification of attapulgite-Reference-Cited by-同舟云学术

Synthesis of a castor oil-based quaternary ammonium surfactant and its application in the modification of attapulgite

Published:2022-01-01 Issue:1 Volume:59 Page:31-38
ISSN:0932-3414
Container-title:Tenside Surfactants Detergents
language:en
Short-container-title:

Author:

Yan Xiuhua¹,Xu Wei¹,Shao Rong¹,Haddleton David M.²

Affiliation:

1. School of Chemistry and Chemical Engineering , Yancheng Institute of Technology , Yancheng , 224051 , China

2. Department of Chemistry , University of Warwick , Gibbet Hill , Coventry , CV4 7AL , UK

Abstract

Abstract Castor oil-based quaternary ammonium surfactant (COQA) was synthesized by an ester-exchange reaction of refined castor oil (CO) (raw material) with N,N-dimethyl ethanol amine followed by quaternization with epichlorohydrin (ECH). Its surface activity and structural features were determined. The critical micelle concentration (CMC) of the surfactant at 25 °C was 1.79 × 10−3 mol/L. The surface tension of an aqueous COQA solution at CMC was 38.19 mN/m. Subsequently, the synthesized COQA was used to modify attapulgite (ATP) by binding it to the surface of ATP. The change in the morphology of the modified-ATP (M-ATP) was attributed to the presence of the COQA bound to the surface of the rod-shaped crystals, although the crystal structure of the silicate did not change. Compared to ATP, the microstructure of the M-ATP was less rigid.

Funder

National Natural Science Foundation of the Jiangsu Higher Education Institutions of China

Publisher

Walter de Gruyter GmbH

Subject

Condensed Matter Physics,General Chemical Engineering,General Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/tsd-2021-2345/pdf

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