O<scp>PPORTUNITIES FOR</scp> P<scp>OLLUTION</scp> P<scp>REVENTION AND</scp> E<scp>NERGY</scp> E<scp>FFICIENCY</scp> E<scp>NABLED BY THE</scp> C<scp>ARBON</scp> D<scp>IOXIDE</scp> T<scp>ECHNOLOGY</scp> P<scp>LATFORM</scp>

Taylor, Darlene K.; Carbonell, Ruben G.; DeSimone, Joseph M.

doi:10.1146/annurev.energy.25.1.115

Cited by 29 publications

(7 citation statements)

References 98 publications

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“…In fact, they allow performing the efficient and selective removal of organic and inorganic hazardous compounds from aqueous streams by simply adding a more, safe, cheap and versatile component socalled amphiphile. The micellar-enhanced ultrafiltration (MEUF) and cloud-point procedure have been applied for preconcentration and removal of several organic pollutants including pesticides, herbicides, aromatic hydrocarbons, PCBs, aliphatic alcohols, aromatic amines, phenols and chlorophenols from aqueous samples [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

A quantitative structure property relationship for prediction of solubilization of hazardous compounds using GA-based MLR in CTAB micellar media

Ghasemi

Abdolmaleki

Mandoumi

2009

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

A quantitative structure property relationship for prediction of solubilization of hazardous compounds using GA-based MLR in CTAB micellar media

Ghasemi

Abdolmaleki

Mandoumi

2009

Journal of Hazardous Materials

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“…Liquid and supercritical carbon dioxide (CO 2 ) have emerged as alternatives to toxic organic solvents. 1 Not only is CO 2 essentially nontoxic, but it is abundant, inexpensive, and nonflammable. Furthermore, the critical temperature of CO 2 , 31.1 °C, is not far from room temperature, and its solvent quality can be tuned markedly with small variations in pressure and temperature.…”

Section: Introductionmentioning

confidence: 99%

Structure of End-Grafted Polymer Brushes in Liquid and Supercritical Carbon Dioxide: A Neutron Reflectivity Study

et al. 2003

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Neutron reflectivity was used to characterize the structure of end-grafted deuterated poly-(dimethylsiloxane) (d-PDMS) brushes on SiO x wafers exposed to liquid and supercritical carbon dioxide (CO2). The solvent quality was tuned continuously over a large range from ideal gas conditions to a near-Θ solvent by varying temperature and CO2 density. Two distinct regions were seen in the segment density profile as a function of distance from the surface: (i) an inner concentrated region near the substrate where the segment density is high due to the strong attractive short-and long-ranged interactions between the d-PDMS and the SiO x substrate and the attractive intra-and interchain interactions and (ii) an outer solvated region that is dilute in polymer due to solvation by CO2. In the outer solvated region, the well-defined block profile at the worst solvent conditions changes to a more parabolic profile with improving solvent quality. The thickness and volume fraction profiles for the outer solvated region change much more with solvent quality than has been seen in previous studies with incompressible solvents, due to the high asymmetry in the intermolecular interactions as well as the large compressibility and free volume differences between the polymer segments and the solvent.

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“…Liquid carbon dioxide has been discussed since a long time as an alternative for dry cleaning with organic solvents [112]. It offers an important and economically viable pollution prevention solution for many of the problems facing the cleaning industries.…”

Section: Carbon Dioxide Systemsmentioning

confidence: 99%

Microemulsions in Cosmetics and Detergents

2009

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Products for personal care and home care have to fulfil many different requirements regarding performance, aesthetics, costs and safety. This has consequences for the use of new technologies such as microemulsions for this kind of applications. If, for example, just one of these parameters (e.g. performance) is sufficient or even excellent while the other parameters do not meet the requirements, then the new technology will not be applied. This example reflects the challenges of applying microemulsions in cosmetic products and in detergency. Although there have been numerous basic studies with microemulsions which show superiority in certain aspects of performance, broad applications of microemulsions in detergency and cosmetic products are not yet achieved. The reasons for this are manifold and depend on the specific application. From an economical point of view the high surfactant concentration is one aspect. However, the fact that the formation of a microemulsion depends on various parameters such as the type of oil, the chosen surfactant, the temperature and the electrolyte content to mention just a few is even more important.As discussed in Chapters 1 and 3 of this book, the formation of microemulsions can be controlled by adjusting the temperature, the electrolyte content or the hydrophiliclipophilic balance by varying the ratio of different surface active agents. All these techniques are applicable in cosmetics and detergency and have specific advantages and disadvantages. For example, most consumer products require a temperature stability which is usually not achieved with temperature-induced microemulsions. Therefore, no general rule exists for the most suitable type of microemulsion but it depends on the application. In this chapter, several examples are given which describe the status of different applications in cosmetics and detergency. Microemulsions in cosmeticsMicroemulsions are used in many cosmetic products and are in the focus of current industrial and university research activities. The reasons and motivations are manifold. The following is a summary of their utilisation in several cosmetic product categories with many references to publications and patents. Common aspects of microemulsions Microemulsions: Background, New Concepts, Applications, Perspectives. Edited by Cosima Stubenrauch

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OPPORTUNITIES FOR POLLUTION PREVENTION AND ENERGY EFFICIENCY ENABLED BY THE CARBON DIOXIDE TECHNOLOGY PLATFORM

Cited by 29 publications

References 98 publications

A quantitative structure property relationship for prediction of solubilization of hazardous compounds using GA-based MLR in CTAB micellar media

A quantitative structure property relationship for prediction of solubilization of hazardous compounds using GA-based MLR in CTAB micellar media

Structure of End-Grafted Polymer Brushes in Liquid and Supercritical Carbon Dioxide: A Neutron Reflectivity Study

Microemulsions in Cosmetics and Detergents

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