Photo-polymerization of liquid crystalline monomer in oriented liquid crystal phase

• Published in: Chinese chemical letters Vol. 21; no. 11; pp. 1330 - 1333
• Main Authors: Bao, Rui, Pan, Min, Qiu, Jin Jun, Tang, He Qing, Liu, Cheng Mei
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2010; School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhon 430074,China
• Subjects: 4-Cyanophenyl-4′-(6-acryloyloxyhexyloxy)benzoate; Liquid crystal; Macroscopic orientation; Photo-polymerization; Synthesis; 偏光显微镜; 光聚合型; 凝胶渗透色谱; 分子量分布; 单体浓度; 向列相液晶; 液晶相; 结晶聚合物; Synthesis; Liquid crystal; Photo-polymerization; Macroscopic orientation; 4-Cyanophenyl-4′-(6-acryloyloxyhexyloxy)benzoate; 4-Cyanophenyl-4'-(6-acryloyloxyhexyloxy)benzoate
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2010.05.010

A new approach to synthesize liquid crystalline polymer with narrow polydispersity index（PDI） was developed.Photopolymerization of 4-cyanophenyl-4＇-（6-acryloyloxyhexyloxy）benzoate（RM23） in nematic liquid crystals with macroscopic orientation was studied.The effects of the monomer concentration on the molecular weight and PDI of the resulting polymers were studied through gel permeation chromatography（GPC） and polarized optical microscopy.The low PDI of 1.19 and 1.22 was obtained in the reverse and normal modes,respectively.The PDI and molecular weight increased with monomer concentration.