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金紀植 대진대학교 1994 大眞論叢 Vol.2 No.-
The synthesis and characterization of a new series of the thermotropic mesophase polymers were conducted These polymers were prepared from 4,4'- dichlorofomyl - 1,3 - bis (phenoxy methyl) tetramethyl disiloxane and 4,4' - dichlorofomyl - α,ω - bis (phenoxy) alkane with hydroquinone. The thermal properties and characteristics of their mesophase were studied by inherent viscosity measurements and IR differential scanning calorimetry The results of the properties and characteristics of the polymers were as follows; 1) Polymers have fairly low melting transition temperature. 2) All of the polymers showed enantiotropic range of melting and isotropization 3) The temperature range of liquid crystal state increased with increasing the length of flexible spacer, polymethylene.