Synthesis and phase behavior of new liquid crystalline oxadiazole derivatives

CHED 719

Jane Lindborg, jlindborg@ups.edu1, Edward T. Samulski, et@unc.edu2, and Eric Scharrer, escharrer@ups.edu1. (1) Department of Chemistry, University of Puget Sound, Tacoma, WA 98416, (2) Department of Chemistry, University of North Carolina, CB# 3290, Chapel Hill, NC 27599-3290
It has been demonstrated that a class of oxadiazole derivatives, 1, exhibits the elusive biaxial nematic phase. However, these compounds possess extremely high nematic onset temperatures (close to 200oC). In an effort to lower the onset of the nematic phase, we are making a variety of structural modifications to the parent oxadiazole. In particular, the incorporation of lateral methyl groups on the benzene rings has lowered the phase transition temperatures. The preparation of a variety of new derivatives with lateral methyl groups is currently underway, and the phase behavior and synthesis of these compounds will be discussed.

 

Undergraduate Research Poster Session: Polymer Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster

Division of Chemical Education

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008