论文部分内容阅读
A series of novel mesogenic polyesters with 2-dich1oromethylhydroquinone moieties weresynthesized by polycondensation of the novel diacyl chloride monomer 2-dichloromethyl-1, 4-bis (4’-chloroformylbenzoyl) oxybenzene-(I) with α,ω-polymethylenediols includ