Functionalization of Polymers with Self-Assembled Nanostructures

摘要: In this thesis, functionalization of polymers with three different types supramolecular self-assembled nanostructures have been examinated: 1) blends block copolymers and thermosets, 2) polymer-amphiphile systems, 3) copolymer-amphiphile complexes. Morphologies complexes were characterized preferentially using small- wide-angle X-ray scattering, transmission electron microscopy. The effect on mechanical, electrical or optical properties measured dynamic mechanical spectroscopy, DC- AC-conductivity, UV-Vis spectroscopy. the first example, diblock triblock copolymer (spherical, "worm-like" cylindrical lamellar structures) used to modify phenolic resins. Morphology depended weight fraction microphase separated domain. storage moduli at room temperature decreased slowly increasing domain, when matrix was continuous. long period structures order 12-70 nm, depending molecular weights blocks. second form one-dimensional conducting 3.5 nm conjugated polymer polyaniline. conductivity samples increased rapidly two orders magnitude structure formed. increase is probably due confinement polyaniline chains within cylinders cosolvent effects amphiphiles. third achieve molecularly reinforced polyelectrolyte. Complexes formed a structure, where "liquid-like" polyelectrolyte decoupled from segmental motion reinforcing glassy Lithium salt introduced promote ionic conductivity. levels relatively low Coulombic traps grain boundaries. Finally, hierarchical manipulate properties. A high surfactants lead ca. 140 nm. All starting materials almost colourless, but predominantly blue pearlescent in reflection an observer viewing them ambient. reflectance spectra revealed formation incomplete photonic bandgap 460 nm.