A new three-arms-nine-chains discotic molecule has been synthesized,and the aggregation structure of the compound was measured by x-ray diffraction,infrared spectra,polarizing microscope,etc.From these evidences,the n...A new three-arms-nine-chains discotic molecule has been synthesized,and the aggregation structure of the compound was measured by x-ray diffraction,infrared spectra,polarizing microscope,etc.From these evidences,the new discotic liquid crystal is found to have the discotic lammelar phase.展开更多
A new aromatic thermotropic liquid crystalline polyester-ether sulfone(PEES)was prepared from 4,4-bis(4-hydroxyphenoxy)diphenyl sulfone(BHPDS),terephthalic acid(TPA)and p-hydroxybenzoic acid(P-HBA).Some factors that a...A new aromatic thermotropic liquid crystalline polyester-ether sulfone(PEES)was prepared from 4,4-bis(4-hydroxyphenoxy)diphenyl sulfone(BHPDS),terephthalic acid(TPA)and p-hydroxybenzoic acid(P-HBA).Some factors that affected melting viscosity of polymer such as prepolymerization reaction medium and post-polymerization etc,were discussed.The liquid crystalline properties were characterized by DSC,polarizing microscope with a hot stage and WAXD measurements.展开更多
A new kind of amphiphilic copolymer was synthesized with azo bond functional side chains, and elementary studies about formation of I,B film, UV-visible spectra and photoelectrical properties of multilayers of this ki...A new kind of amphiphilic copolymer was synthesized with azo bond functional side chains, and elementary studies about formation of I,B film, UV-visible spectra and photoelectrical properties of multilayers of this kind of amphiphilic copolymer were reported.展开更多
文摘A new three-arms-nine-chains discotic molecule has been synthesized,and the aggregation structure of the compound was measured by x-ray diffraction,infrared spectra,polarizing microscope,etc.From these evidences,the new discotic liquid crystal is found to have the discotic lammelar phase.
文摘A new aromatic thermotropic liquid crystalline polyester-ether sulfone(PEES)was prepared from 4,4-bis(4-hydroxyphenoxy)diphenyl sulfone(BHPDS),terephthalic acid(TPA)and p-hydroxybenzoic acid(P-HBA).Some factors that affected melting viscosity of polymer such as prepolymerization reaction medium and post-polymerization etc,were discussed.The liquid crystalline properties were characterized by DSC,polarizing microscope with a hot stage and WAXD measurements.
基金The project is supported by the Key Laboratory of Molecular Spectroscopy and Structure, National Education Commission of China
文摘A new kind of amphiphilic copolymer was synthesized with azo bond functional side chains, and elementary studies about formation of I,B film, UV-visible spectra and photoelectrical properties of multilayers of this kind of amphiphilic copolymer were reported.
