Polyelectrolyte structure

Although this method is very time consuming, it can, in principle, be regarded as an alternative to the chromatographic cross fractionation to characterize copolymers and other complicated polyelectrolyte structures. 

A discussion of random coil conformations is difficult because it perforce includes many deductions which involve excluded volume theories. This is a very controversial subject and extremely difficult to discuss in an easily grasped way. It must be emphasized however that this secticHi is not concerned with excluded volume theory, but rather with the problem of how unperturbed dimensions may be related to polyelectrolyte structure. 

Neither the main nor the side-chain dimensions of ionic cylindrical brushes differ significantly from their uncharged counterparts. Obviously, the osmotic swelling is not significant for the present small side-chain lengths, i.e. Psc<50. The intermolecular structure factor of ionic cylindrical brushes are difficult to interpret. The intermolecular distances derived from the peak of the structure factor is different for H+ and Cs+ counter-ions and is always significantly smaller than the mean distance calculated from the concentration of the particles and the known molar mass. Thus, a two state model may also be postulated for the present cylindrical polyelectrolyte structures. 

The intrinsic electrophoretic mobility of polyelectrolytes is directly linked to the charge-to-surface ratio of the solvated molecule. Therefore CZE can quickly deliver valuable results on charge distribution. By using many chemically different types of polyelectrolytes, the influence of polyelectrolyte structure and of the type, pH, ionic strength and temperature of the background electrolyte can be investigated systematically. 

Stevens MJ, Plimpton SJ. The effect of added salt on polyelectrolyte structure. European Physical Journal B 1998 2 341-345. 

Possesses cell-binding activity due to polymer cationic polyelectrolyte structure and to the negative charge of the cell surface... 

Rinaudo, M., Quemeneur, F and Pepin-Donat, B. (2(X)9) Stabilization of liposomes against stress using polyelectrolytes interaction mechanisms, influence of pH, molecular weight, and polyelectrolyte structure. International Journal of Polymer Analysis and Characterization, 14(8), 667-677. 

In work simulating flexible polyelectrolyte structures with free energies determined by solution of the PB equation, Tsonchev et al. " modeled the... 

Polyelectrolyte Structures as Templates for Photonic and Biomimetic Applications... 

Besides the polyelectrolyte structure, the dosing and mixing conditions play a decisive role in the flocculation... 

The present review mainly, but not exclusively, deals with linear flexible polyions and focuses on single chain properties such as the "electrostatic persistence length of intermolecular interactions of a mainly electrostatic nature, on static and dynamic properties at the dilute-semidilute cross-over regime and, only briefly, on the occurrence of unidentified polyelectrolyte structures, sometimes referred to as extraordinary phase , cluster , association or, according to its most striking phenomenology, slow mode . 

With this goal in mind, this book strives to present a summary of the key concepts of polyelectrolyte structures, electrolyte solutions, ionic flow, mobility of charged macromolecules, polymer capture by pores, and threading of macromolecules through pores. The main concepts and theoretical results are presented without formal derivations whereas the cited references provide adequate derivations. For situations where there is a lack of readily usable references, derivations are given. Every effort has been made to give the reader... 

Fmeh, J., Nakashima, N., He, Q., Moehwald, H. Effect of linear elongation on carbon nanotube and polyelectrolyte structures in PDMS-supported nanocomposite LbL films. J Phys Chem B 116, 12257-12262 (2012). doi 10.1021/jp3071458... 

NPs formed in different types of nanostractured polymers (dendrimers, block copolymers, layer-by-layer polyelectrolyte structures, etc) were studied in various catalytic reactions [9-11]. Amphiphilic block copolymers are largely studied for NP... 

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