Partially Deuterated Side-Chain Liquid Crystalline Monomers and Polymers: Characterization and Order by ²H NMR

D. Catalanoa Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56126, Pisa, Italy

E. Chiellini Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56126, Pisa, Italy

L. Chiezzi Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56126, Pisa, Italy

K. Fodor-csorba Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, 1525, Budapest, Hungary

G. Galli Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56126, Pisa, Italy

E. Gács-Baitz Chemical Research Center Hungarian Academy of Sciences, Institute of Chemistry, 1525, Budapest, Hungary

S. Holly Chemical Research Center Hungarian Academy of Sciences, Institute of Chemistry, 1525, Budapest, Hungary

C. A. Veracini Dipartimento di Chimica e Chimica Industriale, Università di Pisa, 56126, Pisa, Italy

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Abstract

Two partially deuterated liquid crystalline monomers 1, 2 and side-chain polymers 3, 4 therefrom were synthesized. The principal order parameter and biaxiality of the monomers were determined from their ¹H and ²H NMR spectra. The ²H orientational order of the polymers was also evaluated, which showed the coexistence of different phases over certain ranges of temperature.

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Partially Deuterated Side-Chain Liquid Crystalline Monomers and Polymers: Characterization and Order by ²H NMR

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Partially Deuterated Side-Chain Liquid Crystalline Monomers and Polymers: Characterization and Order by ²H NMR