Browsing by Author "Haase, W."

Now showing items 1-12 of 12

    • Antiferroelectric achiral mesogenic polymer 
      Soto Bustamante, Eduardo; Yablonskii, S. V.; Ostrovskii, B. I.; Beresnev, L. A.; Blinov, L. M.; Haase, W. (Elsevier Science B. V., 1996)
      X-ray structure determination and pyroelectric measurements have been carried out on mesogenic mixtures composed of an achiral side-chain polymer and its monomer. The mixtures show antiferroelectric polarization hysteresis ...
    • Antiferroelectric behaviour of achiral mesogenic polymer mixtures 
      Soto Bustamante, Eduardo; Yablonskii, S. V.; Ostrovsky, B. I.; Beresnev, L. A.; Blinov, L. M.; Haase, W. (TAYLOR & FRANCIS LTD, 1996-12)
      X-ray structure determination and pyroelectric and piezoelectric measurements have been carried out on mesogenic mixtures composed of achiral side chain polymers and their monomers. Certain mixtures show antiferroelectric ...
    • Antiferroelectricity in achiral mesogenic mixtures of organic materials 
      Werner, R.; Weyrauch, T.; Navarrete Encina, Patricio; Haase, W.; Soto Bustamante, Eduardo (ELSEVIER SCIENCE BV, 2000-05-12)
      To clarify the mechanism involved in the appearance of antiferroelectric properties in mixtures of polymers containing achiral mesogenic side chains and their monomers, X-ray investigation was carried out in pyroelectrically ...
    • CORRELATION BETWEEN MAGNETIC-PROPERTIES AND MOLECULAR-STRUCTURE OF SOME METALLO-MESOGENS 
      Bikchantaev, I.; Galyametdinov, Y.; Prosvirin, A.; Griesar, K.; Soto Bustamante, Eduardo; Haase, W. (TAYLOR & FRANCIS LTD LONDON, 1995-02)
      The behaviour of a large number of paramagnetic metallo-mesogenic molecules with Cu and VO in different mesophases in a magnetic field was investigated by EPR techniques and magnetic susceptibility measurements. The ...
    • Magnetic investigations on liquid crystalline metallopolymers 
      Haase, W.; Griesar, K.; Soto Bustamante, Eduardo; Galyametdinov, Y. (GORDON BREACH SCI PUBL LTD, 1995)
      In this contribution, magnetic investigations on materials, which essentially combine mesogenic and polymeric properties, were presented. In the glassy and the smectic phase of a copper(II) containing polymer we observed ...
    • New side chain LC polysiloxanes with carbonyl-bound chiral terminal group 
      Kozlovsky, M. V.; Soto Bustamante, Eduardo; Haase, W. (TAYLOR & FRANCIS LTD, 1996-01)
      A synthetic route has been developed to a new series of homo- and co-polysiloxanes with a terminal chiral 2-(S)-butyl fragment attached to the mesogenic biphenyl core via the ketone binding group, >C=O. The synthesis, ...
    • Novel example of a chain structure formed by 1,4-dioxane and cobalt(II) links. Chain [Co-3(mu-OOCCF3)(4)( ... 
      Calvo Pérez, Víctor; Ostrovsky, Sergei; Vega, Andrés; Pelikan, Juraj; Spodine Spiridonova, Evgenia; Haase, W. (AMER CHEMICAL SOC,, 2006-01-23)
      The trimer [Co-3(mu-OOCCF3)(4)(mu-H2O)(2)(OOCCF3)(2)(H2O)(2)(C4H8O2)]center dot 2C(4)H(8)O(2) (1) is composed of three tetragonally distorted Coll centers bridged by four trifluoroacetates and two bridging water molecules. ...
    • Synthesis and characterization of a novel liquid crystalline side chain metallopolymer 
      Soto Bustamante, Eduardo; Galyametdinov, Y.; Griesar, K.; Schuhmacher, Elcio; Haase, W. (Hüthig & Wepf Verlag, 1998)
      The synthesis of a novel kind of form-retaining liquid crystalline crosslinked metallopolymer is reported. Copper(II) is complexed by Schiff's base units as part of a mesogenic side chain polymer. This leads to remarkable ...
    • SYNTHESIS AND CHARACTERIZATION OF NEW LIQUID-CRYSTALLINE DYES FOR NONLINEAR OPTICS 
      Hanemann, Thomas; Soto Bustamante, Eduardo; Weyrauch, T.; Haase, W. (TAYLOR & FRANCIS LTD, 1993)
      We present the synthesis and a description of the physical properties of several organic dyes containing stilbene as well as azomethine groups. The preparations of all compounds started from a common precursor, ...
    • Synthesis and magnetic investigations on rare-earth-containing liquid crystals with large magnetic anisotropy 
      Galyametdinov, Y.; Athanassopoulou, M. A.; Griesar, K.; Kharitonova, O.; Soto Bustamante, Eduardo; Tinchurina, L.; Ovchinnikov, I.; Haase, W. (AMER CHEMICAL SOC, 1996-04)
      A new series of liquid-crystalline Schiff base lanthanide compounds of the general formula (L''H)(2)L''MX(2) was prepared (L''H = H2n+1CnOC6H3(OH)CHNCmH2m+1; n = 7, 12; m = 14, 18; M = La, Tb, Dy, Er, Nd, Ho, Eu, Pr, and ...
    • X-ray investigations on some liquid crystalline methacrylic polymers with ω-hexyloxysalicylaldimine side ... 
      Werner, R.; Soto Bustamante, Eduardo; Navarrete Encina, Patricio; Haase, W. (2002)
      X-ray diffraction data for four different liquid crystalline side group methacrylic polymers based on the ω-hexyloxysalicylaldimine moiety with p-alkyl or p-alkyloxy terminal substituents are presented. For the decyloxy, ...
    • X-ray study of bilayer tilted structures for side-chain liquid crystal polymers 
      Ostrovskii, B. I.; Soto Bustamante, Eduardo; Sulianov, S. N.; Galyametdinov, Y.; Haase, W. (GORDON BREACH SCI PUBL LTD, 1996)
      Structural investigations using X-ray diffraction on methacrylate and acrylate based polymers with different side-chain mesogenic units are presented. The measurements were carried out by means of diffractometers with one ...