Martin Brehmer

Forschungsgebiete

• Kontrollierte radikalische Polyerisationen
• Blockcopolymere
• Microstructurieung mittels Softlithographie
• Ferroelectrische Flüssigkristalle
• AFM

Publikationen

• LC-Elastomers by Chemical and Physical Crosslinking
  M. Brehmer, A. Wiesemann, R. Zentel, K. Siemensmeyer & G. Wagenblast
  Polymer Preprints 34 (2), 708-709 (1993)
• Ferroelectric Liquid Crystalline Elastomers
  M. Brehmer, R. Zentel, G. Wagenblast & K. Siemensmeyer
  Macromol. Chem. Phys. 195, 1891 (1994)
• Ferroelectric Liquid Crystalline Elastomers
  R. Zentel & M. Brehmer
  Adv. Mat. 6, 598 (1994)
• Liquid-Crystalline Elastomers: characterization as networks
  M. Brehmer & R. Zentel
  Mol. Cryst. Liq. Cryst. 243, 353 (1994).
• Dielectric and Electrooptical studies of a Ferroelectric Copolysiloxane
  A. Kocot, R. Wrzalik, J.K. Vij, M. Brehmer & R. Zentel
  Phys. Rev. B 50, 16346 (1994)
• Functional Liquid Crystalline Polymers: Ferroelectric Polymers and Liquid Crystalline Elastomers and Ionomers
  M. Brehmer, A. Wiesemann, E. Wischerhoff & R. Zentel
  Mol. Cryst. Liq. Cryst. 254, 405 (1994)
• Ferroelectric Liquid-Crystalline Elastomers with Short Switching Times
  M. Brehmer & R. Zentel
  Macromol. Rapid. Commun. 16, 659 (1995)
• Photo-Crosslinking in Freely-Suspended Films of Ferroelectric LC-Polymers
  J. Reibel, M. Brehmer, R. Zentel & G. Decher
  Adv. Mater. 7, 849 (1995)
• Create ferroelectric liquid crystalline elastomers
  R. Zentel & M. Brehmer
  CHEMTECH May, 41 (1995).
• New Perspectives for Ferroelectric LC-Polymers
  M. Brehmer, E. Gebhard, T. Wittig & R. Zentel
  Polym. Preprints 37(1), 44 (1996)
• Combined LC main chain/side chain polymers
  R. Zentel & M. Brehmer
  Acta Polymer. 47, 141 (1996).
• Coupling of Liquid Crystalline and polymer network properties in LC-elastomers
  M. Brehmer, R. Zentel, F. Giesselmann, R. Germer & P. Zugenmaier
  Liq. Cryst. 21, 589 (1996).
• Liquid Crystalline Elastomers
  R. Zentel & M. Brehmer
  in: Polymeric Materials Encyclopedia, J. Salamone (Ed.), CRC Press, Boca Raton (1996), Volume 5, p. 3655-3663.
• Microphase stabilized ferroelectric liquid Crystal (MSFLC): Bistable switching of FLC-coil diblock copolymers
  G. Mao, J. Wang, C.K. Ober, M.J. O’Rourke, E. L. Thomas, M. Brehmer & R. Zentel
  Polymer Preprints 38(1) , 374 (1997).M. Brehmer & R. Zentel "Ferroelectric LC-Elastomers" Macromol. Symposia 117, 53 (1997).
• Ferroelectric block copolymers
  M. Brehmer, G. Mao, C.K. Ober & R. Zentel
  Macromol. Symposia 117, 229 (1997).
• Ferroelektrische Filme aus Blockcopolymeren durch Rakeln
  M. Brehmer, G. Mao, C. K. Ober, R. Zentel
  DE 197 29 011 A1
• Structure and Mobility in ferroelectric Liquid Crystalline Diblock Copolymers
  M. Abdallah, H. Skupin, J. Prigann, F. Kremer, S. V. Shilov, G. Mao, C. K. Ober & M. Brehmer
  Proceedings Freiburger Arbeitstagung Flüssigkristalle, 41 (1998).
• Microphase-Stabilized Ferroelectric Liquid Crystals (MSFLC): Bistable Switching of Ferroelectric Liquid Crystal-Coil Diblock Copolymers
  G. Mao, J. Wang, C. K. Ober, M. Brehmer, E.L. Thomas & M. J. O'Rourke
  Chem. Mater., 10(6), 1538-1545 (1998).
• Investigations on Network Formation in Freely Suspended Films of Ferroelectric Ferroelectric LC Polymers
  E. Gebhard, M. Brehmer, R. Zentel, J. Reibel, G. Decher, H.M. Brodowsky & F. Kremer
  in: The Wiley Polymer Networks Group review Series, K. te Nijenhuis & W. J. Mijs (Eds.), J. Wiley & Sons, New York, (1998), Volume 1, p. 387-397
• Molecular Orientation and Dynamics in Ferroelectric Diblock Copolymers Monitored by FT-IR Spectroscopy
  A. Merenga, S. V. Shilov, F. Kremer, G. Mao, Ch. K. Ober & M. Brehmer
  Macromolecules, 31, 9008-9012 (1998)
• Light induced Colour Change of Cholesteric Copolymers
  M. Brehmer, J. Lub & P. van de Witte
  Adv. Mater., 10, 1438-1441 (1998).
• Effect of Polymer Architecture on Self-Diffusion of LC Polymers
  S. R. Clingman, G. Mao, C. K. Ober, R. H. Colby, M. Brehmer, R. Zentel, M. Bignozzi, M. Laus, A. Angeloni & J. R. Gilmor
  J. Pol. Sci. B, 37, 405-414 (1999)
• Modification of the Twist Angle in Chiral Nematic Polymer Films by Photoisomerization of the Chiral Dopant
  P. van de Witte, E. E. Neuteboom, M. Brehmer & J. Lub
  J. Appl. Phys., 85, 7517-7521 (1999)P. van de Witte, M. Brehmer "LCD Components Obtained by Patterning of Chiral Nematic Polymer Layers", J. Mater. Chem., 9, 2087-2094, (1999)
• Light induced colour Change of Cholesteric Copolymers
  M. Brehmer, J. Lub & P. van de Witte
  Mol. Cryst. Liq. Cryst., 331, 333-340 (1999)
• Poly(4-Diphenyl-Aminostyrenes): New Polymers for Electrooptics
  E. Hattemer, M. Brehmer, R. Zentel, E. Mercher, D. Müller & K. Meerholz
  Polymer Preprints 41(1) (2000) in press.

Adresse

Adresse Mainz
Johannes Gutenberg-Universität Mainz
Institut für Organische Chemie
Duesbergweg 10-14
55099 Mainz

Tel: (+49-6131) 39-25468
Fax: (+49-6131) 39-24778

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