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Increasing Comonomer Content. Shorter < Ethylene Sequence Length >. spherulites. Stimulus. lamellar base morphology. Stimulus. Predicting the Behaviour of Polymer Materials and Devices Theory & Computer Simulation. Comonomer Exclusion Crystal Size Reduction.
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Increasing Comonomer Content Shorter < Ethylene Sequence Length > spherulites Stimulus lamellar base morphology Stimulus Predicting the Behaviour of Polymer Materials and Devices Theory & Computer Simulation Comonomer Exclusion Crystal Size Reduction granular base morphology Triglyceride crystallization model systems for polymer crystallization? Poly(propylene-co-1-pentene) for a better impact/stiffness balance and excellent optical properties Lowering of Crystallinity and Melting Point (e.g. T, pH, ions, E-field) Fringed micelles - clusters GLOBULE COIL Molecular computer simulation and theory are used to understand and predict the properties of polymer materials and devices. HPC Hardware & Advanced Software & Theory are available. Simulation & theory studies are of importance for the experimentally oriented topics. Various Morphologies of a Single Polymer Chain <= Simulation of Colloid Suspensions and Polymer Chain Absorption melt • Projects & Milestones • Single chain behaviour in relation to molecular parameters & confinement (motors, valves, pumps) • Self-assembly of supramolecular polymers. • (Hydro)gels and polymer/liquid crystal mixtures Model of crystal structure of the new trigonal form, with disorderin the positioning of the lateral groups. Molecular Simulation of Polymer Brush Conformation Ting.Li @chem.kuleuven.be & Erik.Nies@chem.kuleuven.be bart.goderis@chem.kuleuven.be bart.goderis@chem.kuleuven.be Polymers in (Directed) Motion Molecular Motors, Valves & Pumps Smart Polymers on Display Projection Displays, Tuneable Mirrors & Filters • Polymer Dispersed Liquid Crystals (PDLCs) • “Swiss cheese" polymer matrix with liquid crystal in the holes. • PDLC transparency controlled by electric field. • PDLC quality determined by morphology 0.1 mm Single Chain Collapse Can create motion in polymer micro- and nano-devices. Molecular valve Polymer brush controls aperture. Molecular piston In a gel single chain collapse gives work • Projects & Milestones • Make a demonstrator PDLC display • Making tuneable mirror or color filter • Make a demonstrator mirror • Make a demonstartor color filter • Making PDLC’s • Characterizing • phase separation kinetics • PDLC structural properties • optical properties • Linking PDLC & material properties Molecular pump: valves & piston Solute in Stimulus Artificial Muscle: Directed Motion 2 Volts potential on/off Solute out • Projects & Milestones • Molecular valve in confined space • Molecular pump in confined space • Anisotropic motion • Single molecule motor with directed motion • Device & molecular properties relationships Fields of Applications: (Bio)Medical: sensors, drugs delivery, stents, micro/nano motors, pumps & valves, actuators. Microfluidics: Molecular Valves, motors & pumps; Micro-robotics: Artificial Muscles, Actuators; Smart Coatings: Adapting surfaces (polarity switches), Potential applications Projection display, Paintable display, Flexible display, Rollable display; Tuneable mirrors, Tunable color filters (band gap materials) Erik.Nies@chem.kuleuven.be Erik.Nies@chem.kuleuven.be Self-Assembling Supramolecular Block copolymers Functional Polymeric Nanomaterials PS-block-P4VP(CSA)1.0(PDP)x Supramolecular block copolymers: THE BUILDING BLOCKS for nanostructuring x = 2.0 x = 1.5 x = 1.0 • Projects & Milestones • Color tuneable reflectors • Smart surfaces • Smart nanoparticles, • Nano-porous membranes, valves & pumps • Demonstrator tunable reflector • Demonstrator functional nano-porous membrane Fields of Applications: Nanoparticles, Nano-porous membranes, Self assembled color filters, Drug delivery Erik.Nies@chem.kuleuven.be
