Photonic Hydrogels with Poly(ethylene glycol) Derivative Colloidal Spheres as Building Blocks

被引：68

作者：

Cai, Tong ^{[1
]}

Wang, Guonan ^{[1
]}

Thompson, Samuel ^{[1
]}

Marquez, Manuel ^{[2
,3
,4
]}

Hu, Zhibing ^{[1
]}

机构：

[1] Univ N Texas, Dept Phys, Denton, TX 76203 USA

[2] Arizona State Univ, Harrington Dept Bioengn, Tempe, AZ 85287 USA

[3] NIST Ctr Theoret & Computat Nanosci, Gaithersburg, MD 20899 USA

[4] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA

来源：

MACROMOLECULES | 2008年 / 41卷 / 24期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/ma802035d

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The monodisperse polyethylene glycol (PEG) derivative microgels were synthesized and attached with vinyl groups. The copolymerization of poly(ethylene glycol)ethyl ether methacrylate, poly(ethylene glycol) methyl ether methacrylate, and poly(ethylene glycol) acrylate was carried out in a three-necked flask equipped with stirrer and a nitrogen feed. The solution was purged with nitrogen gas for 40 minutes at 70 °C. Ammonium persulfate was added to initiate the emulsion copolymerization. The reaction lasted for 12 hour under the nitrogen atmosphere. The microgels were purified through a dialysis tube against frequent changes of stirring water for 1 week at room temperature. It was concluded that using PEG derivative particles as both colloidal ordered array and cross-linkers can provide not only crystal structures that diffract light but also enhances the mechanical properties of the resultant hydrogels.

引用

页码：9508 / 9512

页数：5

共 28 条

[1]

Monodisperse thermoresponsive microgels of poly(ethylene glycol) analogue-based biopolymers [J].