Structure Formation in Solution
Ionic Polymers and Colloidal Particles
(Sprache: Englisch)
1. 1 Macroionic Systems and the Scope of the Book Inthepresentmonograph,wewilldiscussionicpolymersolutionsandcolloidal dispersions. When these substances are dissolved into a solvent, they produce ionicspecies havinglargemolecularweightsandtheir...
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1. 1 Macroionic Systems and the Scope of the Book Inthepresentmonograph,wewilldiscussionicpolymersolutionsandcolloidal dispersions. When these substances are dissolved into a solvent, they produce ionicspecies havinglargemolecularweightsandtheir counterions. We knowa variety of naturally occurring ionic polymers and chemically synthesizedc- pounds. Examples of the former are nucleic acids and some proteins, which playanimportantroleinbiologicalsystems. Examplesofsyntheticionicpo- mers are polyacrylic acid (PAA), polystyrenesulfonic acid (PSS) and poly- lylamine (PAAm). PAAisahighpolymer,inwhichmacrylicacidmoleculesCH =CH(COOH) 2 arelinearlypolymerizedby covalent bonds. Thenumber mis calledthe degree 3 of polymerization and is usually of the order of 10 . When PAA is dissolved in a dissociating solvent like water, anionic macroions and counterions are produced. In the following scheme, the counterions are protons but they may + be metal cations such as Na : ? ? ? ? ?CH ? CH? ?CH ?CH? 2 2 + ? ? ? ? ? + mH ? COOH COO m m PAA PAA anion Counterions. PAAm is a cationic polymer and dissociates into PAAm cations and anionic counterions as shown below: ? ? ? ? ?CH ? CH? ?CH ? CH? 2 2 ? ? ? ? ? +mHCl ? +mCl + CH ?NH CH ?NH 2 2 2 3 m m PAAm PAAm cation Counterions. 2 1 Introduction + ? In the case of NaCl, it dissociates into Na and Cl , which both have low molecular weights. On the other hand, PAA anions and PAAm cations have 3 highmolecularweights. Ifmis10 ,onepolymerion(macroion)hasananalyt- 3 + icalchargenumberZ of10 ,whichisexceedinglylargerthan1forNa .
Inhaltsverzeichnis zu „Structure Formation in Solution “
- Introduction- Effective Interactions between Macroions 1
- Dilute Solutions of Flexible and Spherical Ionic Polymers
- Colloidal Dispersions
- Kikuchi-Kossel Line Analysis on Colloidal Crystals
- Effective Interactions between Macroions 2
- Viscometric Properties of Dilute Ionic Polymer Solutions and Colloidal Dispersion
- Phase Transitions by Computer Simulation
- Further Problems of Interparticle Interaction.
Bibliographische Angaben
- Autoren: Norio Ise , Ikuo Sogami
- 2005, 2005, 350 Seiten, Maße: 16 x 24,1 cm, Gebunden, Englisch
- Verlag: Springer
- ISBN-10: 3540252711
- ISBN-13: 9783540252719
- Erscheinungsdatum: 22.07.2005
Sprache:
Englisch
Rezension zu „Structure Formation in Solution “
"He found a promising approach in Sogami and Isea (TM)s treatments of a ~electrostatic interactions in macro-ionic solutionsa (TM) of spherical macro-ions (Ise and Sogami, 2005)." Clays and Clay Minerals, Vol. 54, No. 6, 773-775, 2006
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