ZHANG Huiqi, HUANG Wenqiang, LI Chenxi, HE Binglin. SYNTHESIS AND CHARACTERIZATION OF SIDE CHAIN LIQUID CRYSTALLINE POLYMERS BEARING PARA METHOXYPHENYL OXYCARBONYLAZOBENZENE GROUP[J]. Acta Polymerica Sinica, 1999,(1):48-54.
ZHANG Huiqi, HUANG Wenqiang, LI Chenxi, HE Binglin. SYNTHESIS AND CHARACTERIZATION OF SIDE CHAIN LIQUID CRYSTALLINE POLYMERS BEARING PARA METHOXYPHENYL OXYCARBONYLAZOBENZENE GROUP[J]. Acta Polymerica Sinica, 1999,(1):48-54.DOI:
The synthesis and free radical polymerization of the novel methacrylate monomer containing para methoxyphenyloxycarbonylazobenzene group (AZO2) and the methacrylate monomer containing para methoxyphenyloxycarbonylbenzene group (MAPB2) are described.The novel azo monomer and the polymers were characterized by 1H-NMR
IR
UV Vis
elemental analysis
GPC
TG DTA
POM and X ray diffraction techniques.The polymers obtained from the copolymerization of AZO2 and MAPB2 are proved to be random copolymers and all of the polymers show relatively good thermal stbility.In addition
the azo monomer and the polymers exhibit nematic liquid crystalline textures and the temperature range of liquid crystalline behavior of the polymers broadens with increasing the azo content of the polymers.