聚乙烯基吡啶共聚物与取代苯基偶氮苯酚复合物的制备及其液晶性质

PREPARATION OF COMPLEX OF POLY(VINYL PYRIDINE co BUTYL ACRYLATE AND 4 (4' SUBSTITUTED PHENYLAZO) PHENOL AND THEIR LIQUID CRYSTALLINE BEHAVIOR

通过分子间弱相互作用力组装形成的液晶高分子与一般侧链液晶高分子相比，其介晶基元与聚合物主链搭配选择范围宽，且易于组装制备．因此，将氢键［１，２］，离子键［３，４］等引入液晶高分子制备领域，越来越引起人们的兴趣．目前以吡啶羧基氢键组装成的侧链液晶高分...

The side chain liquid crystalline polymers were prepared by a self assembly process using 4 (4' nitrophenylazo) phenol or 4 (4' methoxyphenylazo) phenol as hydrogen bond donors and poly(4 vinylpyridine co butyl acrylate) as the acceptor.The hydrogen bond association was confirmed by FTIR.While some dissociation occurs at the isotropic temperature,the complete dissociation needed much higher temperature.The hydrogen bonding was restored as the complex was cooled to room temperature again.The nematic liquid crystallinity of the polymer complex was shown by WXRD and POM.