Light-dimerization telechelic alginate-based amphiphiles reinforced Pickering emulsion for 3D printing

Xinyu Zhao; Shujuan Yang; Furui He; Haifang Liu; Keyang Mai; Junhao Huang; Gaobo Yu; Yuhong Feng; Jiacheng Li

doi:10.1016/j.carbpol.2022.120170

Light-dimerization telechelic alginate-based amphiphiles reinforced Pickering emulsion for 3D printing

Carbohydr Polym. 2023 Jan 1:299:120170. doi: 10.1016/j.carbpol.2022.120170. Epub 2022 Oct 1.

Authors

Xinyu Zhao¹, Shujuan Yang¹, Furui He¹, Haifang Liu¹, Keyang Mai¹, Junhao Huang¹, Gaobo Yu¹, Yuhong Feng², Jiacheng Li³

Affiliations

¹ Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan 570228, China.
² Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan 570228, China. Electronic address: fengyuhong@hainanu.edu.cn.
³ Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan 570228, China. Electronic address: lijiacheng@hainanu.edu.cn.

PMID: 36876785
DOI: 10.1016/j.carbpol.2022.120170

Abstract

Functional Pickering emulsions that depend on the interparticle interactions hold promise for building template materials. A novel coumarin-grafting alginate-based amphiphilic telechelic macromolecules (ATMs) undergoing photo-dimerization enhanced particle-particle interactions and changed the self-assembly behavior in solutions. The influence of self-organization of polymeric particles on the droplet size, microtopography, interfacial adsorption and viscoelasticity of Pickering emulsions were further determined by multi-scale methodology. Results showed that stronger attractive interparticle interactions of ATMs (post-UV) endowed Pickering emulsion with small droplet size (16.8 μm), low interfacial tension (9.31 mN/m), thick interfacial film, high interfacial viscoelasticity and adsorption mass, and well stability. The high yield stress, outstanding extrudability (n₁ < 1), high structure maintainability, and well shape retention ability, makes them ideal inks for direct 3D printing without any additions. The ATMs provides an increased capacity to produce stable Pickering emulsions with tailoring their interfacial performances and, providing a platform for fabricating and developing alginate-based Pickering emulsion-templated materials.

Keywords: 3D printing; Amphiphilic alginate derivative; Interfacial self-assembly; Light-induced dimerization; Particle-particle interactions; Telechelic molecule.