Abstract
A main-chain liquid-crystalline polymer based on an unsymmetrically disubstituted cyanostilbene has been synthesized and characterized. The polymer exhibited a highly birefringent nematic texture, followed at higher temperatures by a uniaxial nematic structure the scattering characteristics of which were two to three orders of magnitude smaller than those normally observed in liquid-crystalline materials. Thin solid films prepared by rapid cooling of the polymer in the monotropic state retained the molecular organization and scattering behaviour of this phase. A preliminary evaluation of the second-order nonlinear optical properties associated with these film structures was carried out by means of a crossed polarizer technique.
| Original language | English |
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| Pages (from-to) | 159-162 |
| Number of pages | 4 |
| Journal | Synthetic Metals |
| Volume | 61 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 23 Nov 1993 |