CO2-Responsive Core-Shell/Golf Ball-Like Microspheres: Preparation and Properties

被引：0

作者：

Luo X. ^{[1
]}

Yu L. ^{[2
]}

Feng Y. ^{[1
]}

机构：

[1] Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu

[2] Daqing Oilfield Chemical Company Ltd., Daqing

来源：

Feng, Yujun (yjfeng@scu.edu.cn) | 2017年 / Sichuan University卷 / 33期

关键词：

CO[!sub]2[!/sub]-responsive; Core-shell; Golf ball-like; Microsphere; PH; Poly[2-(diethylamino)ethyl methacrylate;

D O I：

10.16865/j.cnki.1000-7555.2017.09.019

中图分类号：

学科分类号：

摘要：

CO2-responsive polymer materials have gained much attention recently, however, their CO2-sensitive microsphere counterparts have been less documented. Here in this work polystyrene-poly[2-(diethylamino)ethyl methacrylate](PS-PDEA) microsphere was synthesized by seeded emulsion polymerization, and its morphology, size as well as pH- and CO2-responsiveness were investigated. It is found that this microsphere possesses both core-shell and golf ball structures. The size of core and shell is around 162 nm and 13 nm, respectively. Also, fine pH- and CO2-responsiveness of such microsphere is imparted. Alternatively repeatedly bubbling CO2 and replacing with N2 induce the hydrodynamic diameter to increase and decrease reversibly. Moreover, freeze-dried powders become relatively hydrophilic and hydrophobic at acidic and alkaline circumstances, respectively. © 2017, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：106 / 111

页数：5

共 14 条

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