A supramolecular poly-electrolyte complex (SPEC) comprising poly-electrolyte acrylic acid with supramolecularly complexed guanidium is reported. This complex shows pH responsive phase transitions, which are described and characterized using microscopy, spectroscopy, density functional theory studies and Monte Carlo simulations. The phase behaviour of the SPEC is exploited by loading a dye like ...

We report on the fabrication of micropatterned polymer surfaces that allow the reversible inversion of surface topography, charge, and wettability. Micropatterned surfaces were prepared by grafting two oppositely charged polyelectrolytes (poly(acrylic acid) and poly(2-vinylpyridine)) using a combination of photolithography, "lift off", and "grafting to" techniques. The switchable surfaces are o...

Linear and branched poly(ethyleneimines) poly(acrylic acid) have been used in the construction of nanostructured thin multilayer organic shell onto silica microparticles. After glutaraldehyde selective crosslinking part amino groups, polyanionic chains were removed on strong basic media. The core/shell microparticles, with groups active sites, could interact anionic charged species dissolved aq...

The formation of polyion complexes (PICs) comprising thermoresponsive polymers is intended to result in the aggregates that undergo significant structural changes with temperature. Moreover observed modifications might be critically affected by polymer structure and PICs composition. Different block copolymers based on cationic poly(3-acrylamidopropyltrimethylammonium chloride) poly(N-isopropyl...