Attractive Pickering Emulsion Gels

被引：143

作者：

Wu, Baiheng ^{[1
,2
]}

Yang, Chenjing ^{[2
]}

Xin, Qi ^{[2
]}

Kong, Linlin ^{[2
]}

Eggersdorfer, Max ^{[3
]}

Ruan, Jian ^{[1
]}

Zhao, Peng ^{[1
]}

Shan, Jianzhen ^{[1
]}

Liu, Kai ^{[4
]}

Chen, Dong ^{[1
,2
]}

Weitz, David A. ^{[3
]}

Gao, Xiang ^{[2
]}

机构：

[1] Zhejiang Univ, Sch Med, Affiliated Hosp 1, Dept Med Oncol, Hangzhou 310003, Peoples R China

[2] Zhejiang Univ, Coll Energy Engn, Hangzhou 310027, Peoples R China

[3] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[4] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

ADVANCED MATERIALS | 2021年 / 33卷 / 33期

基金：

中国国家自然科学基金; 美国国家科学基金会; 中国博士后科学基金;

关键词：

3D printing; emulsion gels; pickering emulsions; porous materials; shear thinning; POLYMERS; 3D;

D O I：

10.1002/adma.202102362

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Properties of emulsions highly depend on the interdroplet interactions and, thus, engineering interdroplet interactions at molecular scale are essential to achieve desired emulsion systems. Here, attractive Pickering emulsion gels (APEGs) are designed and prepared by bridging neighboring particle-stabilized droplets via telechelic polymers. In the APEGs, each telechelic molecule with two amino end groups can simultaneously bind to two carboxyl functionalized nanoparticles in two neighboring droplets, forming a bridged network. The APEG systems show typical shear-thinning behaviors and their viscoelastic properties are tunable by temperature, pH, and molecular weight of the telechelic polymers, making them ideal for direct 3D printing. The APEGs can be photopolymerized to prepare APEG-templated porous materials and their microstructures can be tailored to optimize their performances, making the APEG systems promising for a wide range of applications.

引用

页数：8

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