| 摘要 |
Novel (naphthyloxy)benzoic/naphthoic acid compounds, polymerizable into thermotropic polymers have the formulae: <IMAGE> <IMAGE> in which R is hydrogen, a straight or branched chain aliphatic or cycloaliphatic hydrocarbon radical having from 1 to 4 carbon atoms or a radical <IMAGE> wherein R' is a methyl or ethyl radical, or salt thereof.
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