A smart pH responsive graphene/polyacrylamide complex via noncovalent interaction.
We report that the graphene sheets can be stably dispersed in water by hydrophobic interaction with polyacrylamide. Most interestingly, the resultant graphene-polyacrylamide complexes show a reversible pH responsive property although polyacrylamide itself does not possess such characteristics. This method opens up novel opportunities for the potential applications of graphene in intelligent sensors, biology, medicine, nanoelectronics and other relevant areas.
Ren
Lulu
L
Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.
Liu
Tianxi
T
Guo
Juan
J
Guo
Shuzhong
S
Wang
Xiaoyan
X
Wang
Weizhi
W
D000180:Acrylic Resins / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D057927:Hydrophobic and Hydrophilic Interactions; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D012995:Solubility; D013056:Spectrophotometry, Ultraviolet; D014867:Water; D000099166:Polyacrylamides
D000180:Acrylic Resins; D002244:Carbon; D010087:Oxides; D014867:Water; D000099166:Polyacrylamides