TY - JOUR
T1 - A general approach for construction of asymmetric modification membranes for gated flow nanochannels
AU - Ma, Shuanhong
AU - Liu, Jianxi
AU - Ye, Qian
AU - Wang, Daoai
AU - Liang, Yongmin
AU - Zhou, Feng
PY - 2014/6/21
Y1 - 2014/6/21
N2 - The asymmetrical distribution of specific proteins on both sides the cell membrane, which is used to adjust the ion permeability, is magical inside the body of a living creature. These porous membrane materials with asymmetric micro/nanochannels are very common and important in both nature and artificial materials. Inspired by this, the construction of intelligent nanodevices with multifunctional properties is urgent and significant. Here a general strategy based on simultaneous chemical polymerization reactions in both sides of an anodic aluminum oxide (AAO) membrane is reported, combining with atom transfer radical polymerization (ATRP), dopamine self-polymerization (DOP-SP) and ring-opening metathesis polymerization (ROMP) technologies, to form various asymmetric membranes in the AAO nanochannels. By this method, double hydrophilic poly(3-sulfopropyl methacrylate potassium salt)@poly(2-(methacryloyloxy)ethyl- methylammonium chloride) (PSPMA@PMETAC), temperature and pH double responsive poly(N-isopropylacrylamide)@poly(dimethylamino)ethyl methacrylate (PNIPAM@PDMAEMA), and hydrophilic/hydrophobic poly(3-sulfopropyl methacrylate potassium salt)@poly(hydrophobic pentadecafluorooctyl-5-norbornene-2- carboxylate) (PSPMA@PNCA-F15) polymer brushes-modified asymmetrical AAO nanochannel array membranes were successfully prepared. Moreover, after the in situ ion exchange and reduction reaction of the double hydrophilic PSPMA@PMETAC membrane, we prepared polymer brushes-stabilized Au-Pd asymmetrically-modified AAO nanochannels, showing excellent flow-through catalysis. This journal is
AB - The asymmetrical distribution of specific proteins on both sides the cell membrane, which is used to adjust the ion permeability, is magical inside the body of a living creature. These porous membrane materials with asymmetric micro/nanochannels are very common and important in both nature and artificial materials. Inspired by this, the construction of intelligent nanodevices with multifunctional properties is urgent and significant. Here a general strategy based on simultaneous chemical polymerization reactions in both sides of an anodic aluminum oxide (AAO) membrane is reported, combining with atom transfer radical polymerization (ATRP), dopamine self-polymerization (DOP-SP) and ring-opening metathesis polymerization (ROMP) technologies, to form various asymmetric membranes in the AAO nanochannels. By this method, double hydrophilic poly(3-sulfopropyl methacrylate potassium salt)@poly(2-(methacryloyloxy)ethyl- methylammonium chloride) (PSPMA@PMETAC), temperature and pH double responsive poly(N-isopropylacrylamide)@poly(dimethylamino)ethyl methacrylate (PNIPAM@PDMAEMA), and hydrophilic/hydrophobic poly(3-sulfopropyl methacrylate potassium salt)@poly(hydrophobic pentadecafluorooctyl-5-norbornene-2- carboxylate) (PSPMA@PNCA-F15) polymer brushes-modified asymmetrical AAO nanochannel array membranes were successfully prepared. Moreover, after the in situ ion exchange and reduction reaction of the double hydrophilic PSPMA@PMETAC membrane, we prepared polymer brushes-stabilized Au-Pd asymmetrically-modified AAO nanochannels, showing excellent flow-through catalysis. This journal is
UR - http://www.scopus.com/inward/record.url?scp=84901256013&partnerID=8YFLogxK
U2 - 10.1039/c4ta00126e
DO - 10.1039/c4ta00126e
M3 - 文章
AN - SCOPUS:84901256013
SN - 2050-7488
VL - 2
SP - 8804
EP - 8814
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 23
ER -
