1 January 1998 Chemical processes in liquid crystal composite systems containing cholesteryl propionate
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An unusual depression of phase transitions was observed in a polymer composite system, when 4,4'-bis(2- methylpropenoyloxy)-biphenyl (BMB) was UV polymerized in a cholesteryl propionate matrix. Our analysis indicates that different chemical processes take place simultaneously during the photo polymerization. One is the polymerization of BMB leading to the formation of a polymer network. Independently from this, cholesteryl propionate suffered some chemical changes and, as main product, 7-hydroxy- cholesteryl propionate formed. This compound was isolated and its structure established by IR, NMR and MS spectroscopy.
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Katalin Fodor-Csorba, Katalin Fodor-Csorba, T. Paksi, T. Paksi, A. Vajda, A. Vajda, S. Holly, S. Holly, E. Gacs-Baitz, E. Gacs-Baitz, A. Dobo, A. Dobo, Antal Jakli, Antal Jakli, "Chemical processes in liquid crystal composite systems containing cholesteryl propionate", Proc. SPIE 3319, Liquid Crystals: Chemistry and Structure, (1 January 1998); doi: 10.1117/12.301283; https://doi.org/10.1117/12.301283

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