morphology of polymer materials and their characterization · morphology of polymer materials and...
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![Page 1: Morphology of Polymer Materials and their Characterization · Morphology of Polymer Materials and their Characterization Hans-Georg Braun Leibniz Institute of Polymers Max Bergmann](https://reader031.vdocument.in/reader031/viewer/2022022117/5cad1d0588c99376788d5ca2/html5/thumbnails/1.jpg)
Morphology of Polymer Materials and their Characterization
Hans-Georg Braun
Leibniz Institute of Polymers Max Bergmann Center of Biomaterials
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Polymer based materials
Synthetic polymer materials Biomaterials
Polymer blends
Foams
Fibre reinforced materials
Fibres
Particle filled polymers
Wood, ivory
Natural fibres (Silk, Cellulose)
Bone, Mussel shells
Diatomes, cork
AgaroseHydrogels
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Microscopic techniques
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Optical microscopic techniques
Light Microscopy Electron Microscopy
Confocal Laser Scanning Microscopy
Conventional Light Microscopy
Scanning Electron Microscopy
Transmission Electron Microscopy
Similar optical principles but different b) Resolutionc) Contrast mechanismsd) Technical Realisation
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Optical beam path and basic optical elements
TEM Light microscope
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Polymer morphology
Homopolymer Copolymer
amorphous crystalline statisticalblockcopolymer
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Polymer morphology
Homopolymer
crystalline
Copolymer
blockcopolymer
Solid state AqueousSolid state
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Microtome sectioning
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Microscopic techniques
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Microscopic techniques
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Microscopic techniques
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Typical Blend morphology
Dispersed phaseTEM
Bicontineous phaseFracture surface SEM
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Typical Blend morphology
Dispersed phase Bicontinuous phase
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Particle morphologiesHigh Impact Polystyrene – HIPS – TEM stained
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Frozen hydrated specimen preparation
Cryo Electron Microscopy
Anja Rank Diss. Uni. Freiburg Herstellung und Charakterisierung vonVesikeln aus amphiphilen Blockcopolymeren
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Rapid freezing with a simple freeze punger
Cryo Electron Microscopy
Vc > 10 4 K/s (cooling rate)
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Frozen hydrated specimen
Cryo Electron Microscopy
ALESSANDRO NAPOLI, MASSIMILIANO VALENTINI, NICOLA TIRELLI, MARTIN MÜLLER and JEFFREY A. HUBBELL Nature Materials 3, 183–189 (2004)
PolymerosomesEG16 PS50 EG 16
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Particle morphologiesLatex particles
bimodal unimodal
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Transmission Electron Microscope
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Percolating structures(Sand particles in cement)
Percolation Percolation threshhold
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Percolating structures
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Surface induced structures
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Surface induced structures
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Fractal structuresDLA Clusters
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DLA Clusters
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DLA Clusters
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DLA Clusters in nature
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Fractal characterisation
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Fractal characterisation
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Voronoi Polyhedra
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Low Voltage Scanning Electron Microscope
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Carbon fibres composites
Fracture surfaces
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Foam structures
Light microscope Scanning Electron Microscope
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3 dimensional information by LSM
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Fluorescence Microscopy
Phase characterisation in PS/PMMA blends
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Fluorescence Microscopy
Fluorescence dyes
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Fluorescence Microscopy
Fluorescence dyes – the physical principle
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Fluorescence Microscopy
Fluorescence absorption – emission – optical elements
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Fluorescence Microscopy
Fluorescence microscop image
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Fluorescence Microscopy
Na Emission spectra
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Fluorescence Microscopy
Hg emission spectra
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Two-Photon Fluorescence MicroscopyPrinciples
Helmchen, Denk, Nature Methods 2(12), (2005) , 932
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Two-Photon Fluorescence MicroscopyApplications
Helmchen, Denk, Nature Methods 2(12), (2005) , 932
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Two-Photon Fluorescence Microscopy
Phase separation and diffusion limited growth in Phospholipid membranesBagatolli, Gratton , Biophysical Journal 78. (2000), 290
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Two-Photon Fluorescence MicroscopyApplications
Phase separation and diffusion limited growth in Phospholipid membranesBagatolli, Gratton , Biophysical Journal 78. (2000), 290
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