Polyelectrolytes: A Survey

摘要: Many electro-optical studies at present deal with a class of systems which have been named polyelectrolytes, contraction polymers and electrolytes. They are macromolecules when dissolved in suitable polar solvent, generally water, bear large number ionized or ionizable groups. Under well defined conditions the macromolecular chain carries charges (fixed charges) always accompanied solution by an equivalent small ions opposite sign (the counterions). Solutions polyelectrolytes for long time known to exhibit certain specific properties arise from combination electrolyte character1). The amount experimental material accumulated course last forty years is quite impressive but its value not comparable level due different they obtained many pitfalls that threaten physical chemist dealing polyelectrolyte systems. Evidently some qualitative insight chemical behaviour such has gained, sometimes substantiated more quantitative theoretical approaches. Nevertheless there still seem exist far being understood application new techniques often only increases questions remains unanswered demonstrates limited validity approaches used so far.