期刊
LANGMUIR
卷 30, 期 13, 页码 3715-3722出版社
AMER CHEMICAL SOC
DOI: 10.1021/la500553v
关键词
-
资金
- National Natural Science Foundation of China [51173162, 21325417]
- Qianjiang Talent Foundation of Zhejiang Province [2010R10021]
- Fundamental Research Funds for the Central Universities [2013XZZX003]
- Research Fund for the Doctoral Program of Higher Education of China [20100101110049]
- Zhejiang Provincial Natural Science Foundation of China [R4110175]
Stabilization of colloids is of great significance in nanoscience for their fundamental research and practical applications. Electrostatic repulsion stabilized anisotropic colloids, such as graphene oxide (GO), can form stable liquid crystals (LCs). However, the electrostatic field would be screened by ions. To stabilize colloidal LCs against electrolyte is an unsolved challenge. Here, an effective strategy is proposed to stabilize GO LCs under harsh conditions by association of polyelectrolytes onto GO sheets. Using sodium poly(styrene sulfonate) (PSS) and poly[2-(methacryloyloxy)ethyndimethyl-(3-sulfopropyl)ammonium hydroxide (PMEDSAH), a kind of polyzwitterion, GO LCs were well-maintained in the presence of NaCl (from 0 M to saturated), extreme pH (from 1 to 13), and serum. Moreover, PSS- or PMEDSAH-coated chemically reduced GO (rGO) also showed stability against electrolyte.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据