Glycol monoethers ketones

Decarbonylotion of a-alkoxy acid chlorides. The reaction of an a-alkoxy acid chloride with a ketone mediated by Sml2 results in a 1,2-glycol monoether and liberation of CO. The necessary molar ratios are 2 1 4, acid chloride/ketone/ Sml2.4... 

Woo the temperature dependence of pitch for chiral nematic polymers does not seem to follow any particular pattern. It is believed that as temperature is increased, specific interactions, e.g., hydrogen bonding, whether inter- or intramolecular or polymer-solvent interactions are destroyed. The polymer chains become more flexible and the side groups more easily relaxed, thereby changing the physical properties of the chiral nematic structure. Similarly, an increase in concentration leads to a decrease in pitch for most lyotropic cellulosic liquid crystals with the exception of cellulose tricarbanilate (CTC) in ethyl methyl ketone, 2-penta-none, or tiiethylene glycol monoether and the chlorophenyl urethane derivative in diethylene glycol monoether. ... 

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