Autor: |
Neubert, Mary E., Keast, Sandra S., Kim, Julie M., Miller, Kyle J., Murray, Rachel M., Norton, Aaron G., Shenoy, Raj A., Walsh, Margaret E., Petschek, Rolfe G. |
Předmět: |
|
Zdroj: |
Liquid Crystals; Feb2004, Vol. 31 Issue 2, p175-184, 10p |
Abstrakt: |
A limited selection of ring modified diphenyldiacetylenes of the type where A = , Y =C n H 2 n +1 , CF 3 , F, COMe, NH 2 , and NMe 2 , and A = , trans and cis with Y =F and trans with Y =C 3 H 7 , were synthesized. Mesomorphic properties were determined by hot stage polarizing microscopy and DSC. These properties were generally poorer than those found in the parent benzene compounds. This was also true of some pyrimidine analogues reported earlier. Birefringence values also decreased as expected. [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
Externí odkaz: |
|