flammable
发表于 2025-3-23 10:20:25
Book 1992n many industrial processes. For example, cell membranes owe their structure to the aggregation of surfactants known as lipids which form a major component of the membrane. Other natural surfactants occur in the digestive system, in the lungs, and even in such substances as crude oil. Man-made surfa
暗语
发表于 2025-3-23 17:18:04
http://reply.papertrans.cn/89/8824/882381/882381_12.png
骂人有污点
发表于 2025-3-23 19:55:17
Adsorption at liquid interfaces,ised in Figure 2.1. Since the polar head group has a strong preference for remaining in the water and the hydrocarbon tail favours leaving the water, the simple picture that comes to mind for molecules accumulating at the surface of water is that of a monomolecular layer. In fact, this is the most c
人类学家
发表于 2025-3-24 01:32:24
Insoluble monolayers, seen how the accumulation of water soluble surfactant molecules at the air/water or oil/water interfaces results in the formation of well-ordered, usually monomolecular, layers. The concentration in water at which these interfaces become filled is a measure of surface activity of the amphiphile, th
TRACE
发表于 2025-3-24 04:27:32
http://reply.papertrans.cn/89/8824/882381/882381_15.png
filicide
发表于 2025-3-24 07:26:46
http://reply.papertrans.cn/89/8824/882381/882381_16.png
endure
发表于 2025-3-24 12:03:03
http://reply.papertrans.cn/89/8824/882381/882381_17.png
Extort
发表于 2025-3-24 18:22:40
General phase behaviour of surfactants,ly small that an aqueous solution behaves like an isotropic fluid. Only when micelles grow to cylinders with considerable asymmetry does the solution start to show features of structure on a macroscopic scale, for example, flow or electric birefringence. Even in these cases, the solution behaves lik
Stable-Angina
发表于 2025-3-24 20:50:37
Dispersions of surfactant aggregates,Although they might be made to separate from the equilibrium monomer solution in a high-speed centrifuge, micelles do not normally sediment under gravity. Thermodynamically, a micellar solution can be treated as a single phase although, as seen in chapter 5, the phase-separation model is an entirely
forbid
发表于 2025-3-24 23:12:35
Adsorption on solids,eous) phase in which the surfactant is dissolved has been considered. The only exception was in chapter 4 where Langmuir—Blodgett multilayers represent a type of interaction with a solid surface, albeit rather artificially forced upon the system. Our attention is now turned to systems where a solid