Poly(vinyl benzoate)-backbone mesogen-jacketed liquid crystalline polymers

	Poly(vinyl benzoate)-backbone mesogen-jacketed liquid crystalline polymers
	Yang, Hong 1; Lv, You-Jing 1; Xu, Ming 1; Wang, Jun 2; Lin, Bao-Ping 1; Guo, Ling-Xiang 1; Chen, Er-Qiang 2
刊名	POLYMER CHEMISTRY
	2015
卷号	6 期号:37 页码:6709-6719
英文摘要	Previously reported polymer backbone structures of mesogen-jacketed liquid crystalline polymers (MJLCPs) are still limited to polyacrylate, polystyrene, polyacetylene, polysiloxane, polythiophene and polynorbornene. In this manuscript, we describe a new system of MJLCPs with poly(vinyl benzoate)backbone (PVBnB), which were synthesized by solution polymerization and bulk photo-polymerization methods. Due to the low reactivity of the vinylbenzoate group, we cannot achieve a high degree of polymerization. Ironically, benefiting from this low reactivity, we successfully prepared several loosely cross-linked MJLCP (xPVBnB) films with homogeneous- or homeotropic-alignment, for the first time by using UV-illumination on a unidirectional oriented mixture of vinylbenzoate monomers, crosslinkers and photo-initiators to perform polymerization and cross-linking at the same time, which are however extremely difficult for the much more reactive acrylate-type or styrene-type MJLCPs' precursor monomers due to the spontaneous thermal-polymerization reactions occurring at high temperatures. Experimental results show that PVBnB can form nematic or smectic phases depending on the alkyl chain length, xPVBnB films present very small elastomeric transformations (i.e. shrinkage/wrinkle) during the LC-to-isotropic phase transition.
收录类别	SCI
语种	英语
公开日期	2015-11-03
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28384]
专题	化学研究所_高分子物理与化学实验室
作者单位	1.Southeast Univ, Jiangsu Prov Hitech Key Lab Biomed Res, Jiangsu Optoelect Funct Mat & Engn Lab, Sch Chem & Chem Engn, Nanjing 211189, Peoples R China 2.Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hong,Lv, You-Jing,Xu, Ming,et al. Poly(vinyl benzoate)-backbone mesogen-jacketed liquid crystalline polymers[J]. POLYMER CHEMISTRY,2015,6(37):6709-6719.
APA	Yang, Hong.,Lv, You-Jing.,Xu, Ming.,Wang, Jun.,Lin, Bao-Ping.,...&Chen, Er-Qiang.(2015).Poly(vinyl benzoate)-backbone mesogen-jacketed liquid crystalline polymers.POLYMER CHEMISTRY,6(37),6709-6719.
MLA	Yang, Hong,et al."Poly(vinyl benzoate)-backbone mesogen-jacketed liquid crystalline polymers".POLYMER CHEMISTRY 6.37(2015):6709-6719.