Colloidal particle morphology

SEM can also be used for both surface morphology and particle size and size distribution, as illustrated in Figure 12.17 for thermally sensitive polystyrene core-cross-linked poly(NIPAM) shells. In addition, atomic force microscopy (AFM) can be used for investigating colloidal particle morphology, as reported by Duracher et al. In fact, atomic force microscopy leads to rapid and complementary information on particle morphology in a dried state. 

Keywords Clays Emulsion polymerization Iron oxide Metals Organic/ inorganic composite colloids Particle morphology Pigments Quantum dots Silica Surface modification... 

The mechanism for this ostensibly homogeneous process, the Chalk-Harrod mechanism, [264] was based on classical organometallic synthetic and mechanistic research. Its foundation lies in the oxidative addition of the silane Si-H bond to the low oxidation state metal complex catalyst, a reaction which is well established in the organometallic literature. Lewis reported in 1986 that the catalyti-cally active solutions contained small (2.0 nm) platinum particles, and demonstrated that the most active catalyst in the system was in fact the colloidal metal. [60, 265] Subsequent studies established the relative order of catalytic activity for several precious metals to be platinum > rhodium > ruthenium = iridium > osmium. [266] In addition, a dependence of the rate on colloid particle morphology for a rhodium colloid was observed. [267]... 

Westesen and Siekmann [11] used suspensions of colloidal solid lipid particles as well as lyophilizates as delivery systems for the parenteral administration of the drug for its particle morphology determination. 

Heterogeneous particle morphology, in polymer colloids, 20 387 Heterogeneous photocatalysis, 19 73, 103 principles of, 29 74-75 Heterogeneous polymer blends, 20 343. 

Leontidis E, Kleitou K, Kyprianidou-Leodidou T, Bekiari V, Lianos P (2002) Gold colloids from cationic surfactant solutions. 1. Mechanisms that control particle morphology. Langmuir 18 3659-3668... 

In this chapter, an overview of the fundamentals of PNs is described, according to the author s understanding and experience as well as support from numerous references and review articles. The content of this chapter covers all kinds of inorganic nanoadditives, but, because the most widely investigated and thus understood nanoadditives used to enhance the thermal and fire resistance of the polymers are clays (natural or synthetic) followed by the CNTs and colloidal particles, the focus of the chapter is primarily on clays, particularly on the silicate clays and LDHs, as well as the CNTs. This includes structure, properties, and surface treatment of the nanoadditives, design of the modifiers, synthesis, characterization of the structure/morphology, and thermal and fire... 

In Chapter 12 of this book, the mechanical properties of ceramic suspensions, pastes, and diy ceramic powders are discussed. Ceramic suspension rheology is dependent on the viscosity of the solvent with polymeric additives, particle volume fraction, particle size distribution, particle morphology, and interparticle interaction energy. The interparticle forces play a veiy important role in determining the colloidal stability of the suspension. If a suspension... 

The research on the structural behavior of emulsion polymers has been greatly influenced recently by colloid chemistry. Surface charges, particle morphology, film formation, flow properties, and interactions with organic solvents and monomers have been studied. Of particular... 

Futamata M, Maruyama Y, Ishikawa M (2002) Microscopic morphology and SERS activity of Ag colloidal particles. Vib Spectrosc 30 17-23... 

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