%0 Journal Article %T Self-assembly of copper-free maltoheptaose-block-polystyrene nanostructured thin films in real and reciprocal space %+ University of Shanghai [Shanghai] %+ Centre de Recherches sur les Macromolécules Végétales (CERMAV ) %+ Institut des Molécules et Matériaux du Mans (IMMM) %A Liao, Yingjie %A Goujon, Laurent %A Reynaud, Eric %A Halila, Sami %A Gibaud, Alain %A Wei, Bin %A Borsali, Redouane %< avec comité de lecture %@ 0144-8617 %J Carbohydrate Polymers %I Elsevier %V 212 %P 222-228 %8 2019-05 %D 2019 %R 10.1016/j.carbpol.2019.02.014 %K Carbohydrate-based block copolymers %K Microphase separation %K Grazing incidence small angle X-ray scattering %K Solvent vapor annealing %K Copper-catalyzed azide-alkyne cycloaddition %Z Chemical Sciences/Polymers %Z Chemical Sciences/Material chemistry %Z Engineering Sciences [physics]/MaterialsJournal articles %X The promising carbohydrate-based block copolymer maltoheptaose-block-polystyrene (MH-b-PS) has been used for high-performance memory transistors and next generation nanolithography. In order to realize the potential of MH-b-PS especially in microelectronic applications, we firstly improved its synthetic method for obtaining large amount of copper-free MH-b-PS. The main improvement relies on the removal of the residual copper catalyst by using a chelating resin. Then, the microphase separation of copper-free MH-b-PS in both thin film and bulk states under different solvent vapor annealing conditions were investigated comprehensively and compared with our previous report by using both real-space and reciprocal-space techniques. A phase transition of MH-b-PS from hexagonal close-packed horizontal cylinders to face-centered cubic were observed when increasing the amount of tetrahydrofuran in the mixture annealing solvent of tetrahydrofuran and H2O. More details about self-assembled MH-b-PS nanostructures were analyzed by comparing grazing incidence small angle X-ray scattering patterns with corresponding atomic force microscopy phase images. %G English %L hal-02954596 %U https://cnrs.hal.science/hal-02954596 %~ UGA %~ CNRS %~ UNIV-LEMANS %~ CERMAV %~ INC-CNRS %~ IMMM-LEMANS %~ UGA-COMUE %~ TEST2-HALCNRS