Phase transfer catalysis in polycondensation processes—XI. Liquid crystalline copolyethers based on 4,4′-dihydroxydiphenyl, bisphenol-a, 4,4′-dihydroxyazobenzene and 3,3-bis(chloromethyl)oxetane
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Add time:09/08/2019 Source:sciencedirect.com
Copolycondensations of 3,3-bis(chloromethyl)oxetane with various diphenols under phase transfer conditions have been performed. The copolyethers show mesomorphism; investigations of their LC properties by optical polarization microscopy and DSC analyses were carried out.
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