Abstract
The synthesis and the phase behavior of three liquid crystalline polymer network and of the linear polymers upon which the networks are based are presented. The linear polymers, that are characterized by the presence of -OC 6 H 4 -p-COOC 6 H 3 -o-OH-p-CH=NC 6 H 4 -p-O- groups connected by flexible molecular segments, exhibit enantiotropic liquid crystalline properties of nematic and/or smectic nature. They have been moderately (≤10%) cross-linked by reaction with ClOCC 6 H 4 -p-O(CH 2 ) 12 O-p-C 6 H 4 COCl in an isotropic o-dichlorobenzene dilute solution. The network form as isotropic gels and undergo anisotropization with enthalpy release on cooling at room temperature
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