Introduction to Colloid and Surface Chemistry |
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Page 27
... technique . Polydispersity introduces complications and is reflected by a drift of M with x . Conversely , consistency of M with x is an indication of sample homogeneity with respect to M. The disadvantage of the sedimentation ...
... technique . Polydispersity introduces complications and is reflected by a drift of M with x . Conversely , consistency of M with x is an indication of sample homogeneity with respect to M. The disadvantage of the sedimentation ...
Page 46
... technique of shadow - casting is generally employed . A heavy metal , such as gold , is evaporated in vacuum and at a known angle on to the specimen , thus giving a side illumination effect ( see Figure 3.5 ) . From the angle of ...
... technique of shadow - casting is generally employed . A heavy metal , such as gold , is evaporated in vacuum and at a known angle on to the specimen , thus giving a side illumination effect ( see Figure 3.5 ) . From the angle of ...
Page 78
... technique for studying monolayers by electron microscopy has been developed recently . The films are transferred from the substrate on to a collodion support and shadow - cast by a beam of metal atoms directed at an angle a ( about 15o ) ...
... technique for studying monolayers by electron microscopy has been developed recently . The films are transferred from the substrate on to a collodion support and shadow - cast by a beam of metal atoms directed at an angle a ( about 15o ) ...
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acid adsorbed adsorption adsorption isotherm approximately aqueous behaviour Brownian calculated cell charged surface chemisorption cm-¹ cm³ coefficient colloidal dispersions colloidal particles colloidal systems constant contact angle counter-ions curve cylinder decreases deflocculated deformation depends detergent diffusion dispersion medium distance droplets effect electrical double layer electrode electrolyte emulsifying equation equilibrium example Figure film flocculation flocculation concentration flow hydrocarbon chains hydrophilic increase interaction interface intrinsic viscosity ionic ions isotherms light scattered material measured membrane method micelles mixed film molecular weight molecules monolayer monomolecular motion O/W emulsions orientated osmotic pressure physical adsorption plate polymer polymerization pores porous potential energy potential gradient protein ratio relative repulsive sample sedimentation shear soaps sodium solid surface soluble solution solvation solvent spherical particles stability Stern layer stress surface tension surface-active surfactant temperature theory thermal thixotropic valency vapour pressure velocity viscoelastic viscometer volume W/O emulsions Waals wetting zero zeta potential