New fluorinated chiral side-chain polymers with very large tilt angles in the smectic C* phase

Autor:	Gunnar Anderson, Rudolf Zentel, David S. Hermann, H. Poths, Kent Skarp
Rok vydání:	1993
Předmět:	chemistry.chemical_classification Materials science business.industry Mesogen Polymer Dielectric Condensed Matter Physics Ferroelectricity Molecular physics Electronic Optical and Magnetic Materials Monatomic ion Optics Tilt (optics) chemistry Phase (matter) Side chain business
Zdroj:	Ferroelectrics. 148:285-295
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150199308019956
Popis:	A fluorinated chiral side-chain polysiloxane with very large tilt angles in the ferroelectric phase was studied. The optical response on an applied square wave could be analyzed in detail by an optical/electrical model for the cell, only assuming book-shelf geometry and negligible dielectric director torques. The model yields molecular tilt angles to a high accuracy by a curve-fitting procedure. Comparisons to other mesogenic substituents were also made, and indications were found that small (monatomic) substituents favor large tilt angles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::730a707b5aaa838bcc33e625eeae65a7 https://doi.org/10.1080/00150199308019956 Zobrazit plný text záznamu