TY - GEN
T1 - Interlayer surface modification of layered perovskite HLaNb 2O7·xH2O with diol compounds possessing ethylene oxide chains
AU - Hotta, Shuihei
AU - Idota, Naokazu
AU - Sugahara, Yoshiyuki
PY - 2014
Y1 - 2014
N2 - Grafting reactions between an n-decoxy derivative of ion-exchangeable layered perovskite HLaNb2O7·xH2O and polyethylene glycols (PEGs) with various molecular masses were investigated. X-ray diffraction analysis showed that a reflection corresponding to the interlayer distance of the n-decoxy derivative of HLaNb2O 7·xH2O (2.73 nm) disappeared and that new diffraction lines ascribable to smaller interlayer distances, which increased with increases in the molecular mass of PEGs, appeared. The solid-state 13C CP/MAS NMR spectra of the products indicated that ethylene oxide chains were covalently bound to the interlayer surface of HLaNb2O 7·xH2O. The signal assignable the carbons bound to OH groups suggests that the grafting reactions for the formation of Nb-O-C bonds typically involve one of the terminal OH groups in PEGs.
AB - Grafting reactions between an n-decoxy derivative of ion-exchangeable layered perovskite HLaNb2O7·xH2O and polyethylene glycols (PEGs) with various molecular masses were investigated. X-ray diffraction analysis showed that a reflection corresponding to the interlayer distance of the n-decoxy derivative of HLaNb2O 7·xH2O (2.73 nm) disappeared and that new diffraction lines ascribable to smaller interlayer distances, which increased with increases in the molecular mass of PEGs, appeared. The solid-state 13C CP/MAS NMR spectra of the products indicated that ethylene oxide chains were covalently bound to the interlayer surface of HLaNb2O 7·xH2O. The signal assignable the carbons bound to OH groups suggests that the grafting reactions for the formation of Nb-O-C bonds typically involve one of the terminal OH groups in PEGs.
KW - Inorganic-organic hybrid
KW - Layered perovskite
KW - Polyethylene glycol
KW - Surface modification
UR - http://www.scopus.com/inward/record.url?scp=84903957033&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903957033&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.616.82
DO - 10.4028/www.scientific.net/KEM.616.82
M3 - Conference contribution
AN - SCOPUS:84903957033
SN - 9783038351306
T3 - Key Engineering Materials
SP - 82
EP - 86
BT - Advanced Ceramics and Novel Processing
PB - Trans Tech Publications Ltd
T2 - 5th International Symposium on Advanced Ceramics, ISAC 2013 and 3rd International Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2013
Y2 - 9 December 2013 through 12 December 2013
ER -