Raspberry-Shaped Microgels Assembled at the Oil-Water Interface by Heterocoagulation of Complementary Microgels
文献类型：期刊论文
| 作者 | Guan, Xin2; Wei, Jingjing1; Xia, Yufei3; Ngai, To2 |
| 刊名 | ACS MACRO LETTERS
 |
| 出版日期 | 2022-07-28 |
| 页码 | 8 |
| DOI | 10.1021/acsmacrolett.2c00371 |
| 英文摘要 | Raspberry-shaped particles have attracted increasing interest due to their tunable surface morphologies and physicochemical properties. A variety of covalent and noncovalent strategies have been developed for the fabrication of raspberry-shaped particles. However, most of these strategies are complex or require precise control of solution conditions. In this work, we develop a direct approach for the fabrication of noncovalent raspberry-shaped microgels. Our strategy works through the electrostatically driven heterocoagulation of binary microgels with complementary functional groups at the oil-water interface. By introducing hexanoic acid (HA) into the oil phase, stable inverse water-in-oil (w/o) Pickering emulsions could be stabilized solely by HA-swollen microgels or self-assembled raspberry-shaped microgels. Furthermore, the formation mechanism and the interfacial properties of interfaces laden with raspberry-shaped microgels were investigated. The results indicate that HA can effectively improve the hydrophobicity and interfacial activity of microgels. In addition, raspberry-shaped microgels achieve high coverage on the droplet surface, resulting in the elastic interface and excellent stability of emulsions. We envision that these results will not only fill a knowledge gap in the field of soft matter interfacial self-assembly, but also will shed light on the rational design of raspberry-shaped soft colloids and the on-demand control of interfacial rheology. In addition, we expect that our results will contribute to wider applications of microgel-stabilized emulsions, including cascade catalysis, microreactor, and in vivo drug delivery. |
| WOS关键词 | EMULSION POLYMERIZATION ; PARTICLES ; STABILIZATION ; COLLOIDS ; SILICA |
| 资助项目 | National Key Research and Development Program of China[2021YFC2302600] ; Hong Kong Special Administration Region (HKSAR) General Research Fund[CUHK14304619] ; Hong Kong Special Administration Region (HKSAR) General Research Fund[2130642] ; Shenzhen Polytechnic Research Fund[6020310012K] |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000835263100001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Key Research and Development Program of China ; Hong Kong Special Administration Region (HKSAR) General Research Fund ; Shenzhen Polytechnic Research Fund |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54220]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wei, Jingjing; Ngai, To |
| 作者单位 | 1.Shenzhen Polytech, Dept Fine Chem Engn, Shenzhen 518055, Peoples R China 2.Chinese Univ Hong Kong, Dept Chem, Hong Kong 999077, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Xin,Wei, Jingjing,Xia, Yufei,et al. Raspberry-Shaped Microgels Assembled at the Oil-Water Interface by Heterocoagulation of Complementary Microgels[J]. ACS MACRO LETTERS,2022:8. |
| APA | Guan, Xin,Wei, Jingjing,Xia, Yufei,&Ngai, To.(2022).Raspberry-Shaped Microgels Assembled at the Oil-Water Interface by Heterocoagulation of Complementary Microgels.ACS MACRO LETTERS,8. |
| MLA | Guan, Xin,et al."Raspberry-Shaped Microgels Assembled at the Oil-Water Interface by Heterocoagulation of Complementary Microgels".ACS MACRO LETTERS (2022):8. |
入库方式： OAI收割
来源：过程工程研究所
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