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6592748 
Journal Article 
RESTUDY OF THE OLD POLY-2,5-DI(BENZOYLOXY)STYRENE AS A NEW LIQUID-CRYSTAL POLYMER 
Zhou, QF; Wan, XH; Zhu, XL; Zhang, F; Feng, XD; , 
1993 
1 
Molecular Crystals and Liquid Crystals
ISSN: 1542-1406
EISSN: 1563-5287 
GORDON BREACH SCI PUBL LTD 
READING 
231 
1 
107-117 
English 
WOS:A1993LF83000010 
The 40 year old polymer, poly-2,5-di(benzoyloxy)styrene, has been restudied from the view point of the ''mesogen-jacketed liquid crystal polymer.'' This old polymer was synthesized in 1952 as a precursor of an electron exchange polymer and is now found to be thermotropically liquid crystalline, from which the characteristic banded texture of rigid and semi-rigid liquid crystal polymers may be obtained. The monomer of this polymer, 2,5-di(benzoyloxy)styrene, was then also not realized as liquid crystalline, is now found to be liquid crystalline forming too. This finding offers probably the first example of liquid crystal rigid rod-like molecules with lateral but without terminal substitutions. The synthesis and primary characterization of a series of the closely related polymers poly-2,5-bis[(4-substituted-benzoyl)oxy]styrenes are also reported. 
2,5-bisf(4-cyanobenzoyl)oxy]styrene; 2,5-bis[(4-alkoxybenzoyl)oxy]styrene; 2,5-bis[(4-alkylbenzoyl)oxy]styrene; 2,5-di(benzoyloxy)styrene; liquid crystal monomers; liquid crystal polymers; mesogen jacketed liquid crystal polymers; poly-2,5-di(benzoyloxy)styrene; rigid side chain liquid crystal polymers