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Synthesis and mesomorphic behavior of poly(methylsiloxane)s and poly(methylsiloxane-co-dimethylsiloxane)s containing oligooxyethylene spacers and mesogenic side groups

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Summary

The synthesis and characterization of poly(methylsiloxanes)s and poly(methylsiloxane-co-dimethylsiloxane)s containing either bis(ethylene oxide) or tris(ethylene oxide) flexible spacers and either 4-methoxy-4′-hydroxybiphenyl a mixture containing a 1:1 ratio of 4-methoxy-4′-hydroxy-α-methylstilbene and 4-hydroxy-4′-methoxy-α-methylstilbene, or 4-[5-(4-methoxyphenyl)-1,3-dioxan-2-yl]phenol mesogenic groups, in all combinations, is presented. All polymers and copolymers display smectic mesomorphism. The dependence of phase transition temperatures on the spacer length and copolymer composition is described.

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Author notes

  1. C. -S. Hsu

    Present address: Institute of Applied Chemistry, National Ciao Tung University, 1001 Ta Hsuch Road, 300, Hsinchu, Taiwan, Republic of China

Authors and Affiliations

  1. Department of Macromolecular Science, Case Western Reserve University, 44106, Cleveland, OH, USA

    V. Percec & C. -S. Hsu

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  1. V. Percec
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  2. C. -S. Hsu
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Percec, V., Hsu, C.S. Synthesis and mesomorphic behavior of poly(methylsiloxane)s and poly(methylsiloxane-co-dimethylsiloxane)s containing oligooxyethylene spacers and mesogenic side groups. Polymer Bulletin 23, 463–470 (1990). https://doi.org/10.1007/BF00419963

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  • DOI: https://doi.org/10.1007/BF00419963

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