| 摘要 |
A composition is disclosed comprising a carbohydrate-based material a dispersed in carbon dioxide. A general method for synthesizing inexpensive, renewable, non-toxic, non-fluorous, carbohydrate based CO2-philes is disclosed. These CO2-philes are soluble in carbon dioxide. Methods of making the composition are also disclosed. The methods and composition are useful in a variety of applications and can utilize gaseous, liquid and supercritical carbon dioxide. The methods and compositions are useful in the synthesis of surfactants and metal chelates for CO2, as a sizing substrate, in CO2-based coating processes, for impregnation and plasticizing cellulosic and non-cellulosic materials, in pharmaceutical applications, such as crystallization, dispersion and encapsulation of bioactive molecules in solid systems, in the densification of CO2, in the synthesis of biodegradable polymers in CO2, and for carbon dioxide removal, to name just a few.
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