LIU Hui-Hui, CHEN Qiu-Xia, ZHAO Zan, WANG Li-Yan. LAYER-BY-LAYER ASSEMBLY OF A HALOGEN-BONDED POLYMER MULTILAYER FILM AND IMPROVEMENT OF ITS STABILITY. [J]. Acta Polymerica Sinica (9):1092-1097(2011)
DOI:
LIU Hui-Hui, CHEN Qiu-Xia, ZHAO Zan, WANG Li-Yan. LAYER-BY-LAYER ASSEMBLY OF A HALOGEN-BONDED POLYMER MULTILAYER FILM AND IMPROVEMENT OF ITS STABILITY. [J]. Acta Polymerica Sinica (9):1092-1097(2011) DOI: 10.3724/SP.J.1105.2011.11127.
LAYER-BY-LAYER ASSEMBLY OF A HALOGEN-BONDED POLYMER MULTILAYER FILM AND IMPROVEMENT OF ITS STABILITY
6-tetrafluorophenoxy)ethyl methacrylate) (PIPEMA) and poly(3-(3-pyridyl)propyl methacrylate) (PPyPMA) were designed and synthesized with iodotetrafluorophenoxy group as halogen-bonding donor and pyridyl group as halogen-bonding acceptor.After layer-by-layer assembly and verification with UV-Vis absorption spectroscopy
a halogen-bonded PIPEMA/PPyPMA multilayer film was successfully assembled in acetone and methyl ethyl ketone (MEK)
while PIPEMA and PPyPMA were not assembled into a multilayer film in tetrahydrofuran (THF) or chloroform.The PIPEMA/PPyPMA multilayer film was further characterized with quartz crystal microbalance
atomic force microscope and surface profiler.The PIPEMA/PPyPMA multilayer film assembled in MEK is stable in water with pH values between 3 and 13 because the two polymers can not be dissolved in water.In contrast
the polymer film was desorbed in THF
chloroform and pyridine with maximum film loss greater than 97%.In order to improve the stability of a multilayer film in organic solvents
two approaches were applied.(1) A PIPEMA/PPyPMA multilayer film was cross-linked with 1
3-dibromopropane.As for the cross-linked film
the maximum film loss in THF is less than 6%.(2) A copolymer bearing both hydrogen-bonding donor and halogen-bonding donor was designed and synthesized.As for a multilayer film of the copolymer and PPyPMA
School of Materials Science and Engineering, Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, Hainan University
College of Chemical Engineering, China University of Petroleum (East China)
Institute of Chemistry, Chinese Academy of Sciences
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University
Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education)