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Details for article 86 of 131 found articles
| Title: |
Self-assembly of a coil-rod-coil block molecule complexed with LiCF3SO3 |
| Author: | |
| Appeared in: |
Liquid crystals |
| Paging: | Volume 27 (2000) nr. 11 pages 1543-1550 |
| Year: |
2000-01-01 |
| Contents: |
Enantiotropic liquid crystalline phases were induced by the complexation of docosyl 4-(4-oxy-4'-biphenylcarbonyloxy)-4'-biphenyl carboxylate, containing poly(ethylene oxide) of twelve ethylene oxide subunits, with 0.25 mol of LiCF3SO3 per ethylene oxide unit. The existence of oblique columnar, rectangular columnar (Colrec), and smectic A (SmA) mesophases of this complex was demonstrated by a combination of polarized optical microscopy and X-ray diffraction. This complex was observed to transform from the rectangular columnar phase to a lamellar phase on heating. The unusual phase transition behaviour in this complex is believed to originate from the mixing entropy of the added LiCF3SO3. Also, the Colrec-SmA phase transition was accompanied by a change of the packing structure from bilayer to monolayer. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 86 of 131 found articles
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