Dielectric properties of the unsymmetrically substituted diacetylenes NP/4-MPU and TS/FBS

Autor:	Petra Gruner-Bauer, Peter Strohriegl, Elmar Dormann
Rok vydání:	1989
Předmět:	chemistry.chemical_classification Materials science Solid-state Dielectric Polymer Condensed Matter Physics Electronic Optical and Magnetic Materials Crystal Spontaneous polarization Crystallography chemistry.chemical_compound Monomer Polymerization chemistry Polar
Zdroj:	Ferroelectrics. 92:15-21
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150198908211300
Popis:	The permittivities of monomer single crystals of the unsymmetrically substituted diacetylenes NP/4-MPU and TS/FBS were measured as a function of temperature (10–300 K) in the respective crystal orientations and values partly larger than 10 were obtained. The polar modification of NP/4-MPU single crystals cannot be polymerized in the solid state whereas the TS/FBS single crystals can be completely converted to polymer single crystals. The temperature dependences of the spontaneous polarization and of the permittivities were measured for different polymer contents.
Databáze:	OpenAIRE
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