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将修饰的β-环糊精衍生物单-(6-丙烯酰乙二氨基-6-去氧)-β-环糊精二十乙酸酯(M1)作为手性单体,4-十一烯酰氧基苯甲酰氧基-4’-乙氧基苯甲酰氧基对联苯酚双酯(M2)作为液晶单体,与聚甲基含氢硅氧烷接枝共聚,得到含β-环糊精基元的液晶聚合物P1～P7.通过FT-IR,1H NMR,DSC,POM,TGA,XRD,旋光分析等手段对所获单体及聚合物的结构、相行为等性能进行了表征与测试.结果表明,单体M1为非液晶手性单体,其比旋光度为+95.30,单体M2呈现向列相的丝状织构,聚合物P1～P7均有液晶性,它们的热稳定性良好,热失重5%时的温度均在300℃左右,随着手性单体M1含量的增加,聚合物的液晶区间变窄,比旋光度值增加.
The modified β-cyclodextrin derivative mono- (6-acryloylethylenediamino-6-deoxy) -β-cyclodextrin eicosate (M1) was used as the chiral monomer, The allyloxybenzoyloxy-4’-ethoxybenzoyloxy-diphenol diester (M2) as a liquid crystalline monomer is graft-copolymerized with the polymethylhydrogensiloxane to obtain a copolymer containing β- Cyclodextrin-based liquid crystal polymers P1-P7. The structure, phase behavior and other properties of the obtained monomers and polymers were characterized by FT-IR, 1H NMR, DSC, POM, TGA, XRD and optical analysis Characterization and testing showed that the monomer M1 was a non-liquid crystal chiral monomer with a specific rotation of +95.30. The monomer M2 exhibited a nematic texture of filaments. All of the polymers P1 to P7 had liquid crystallinity. The thermal stability is good, the temperature at 5% of the weight loss is about 300 ℃. With the increase of the content of the chiral monomer M1, the liquid crystal region of the polymer narrows and the specific rotation increases.