Large-Scale and Highly Oriented Liquid Crystal Phase in Suspensions of Polystyrene-block-poly(L-lactide) Single Crystals

doi:10.1021/la200314t

CORC > 化学研究所 > 中国科学院化学研究所

	Large-Scale and Highly Oriented Liquid Crystal Phase in Suspensions of Polystyrene-block-poly(L-lactide) Single Crystals
	Jiang, Chunbo 1,2; Wang, Zongbao 3; Huang, Haiying 1,2; He, Tianbai 1,2
刊名	LANGMUIR
	2011-04-19
卷号	27 期号:8 页码:4351-4357
ISSN号	0743-7463
DOI	10.1021/la200314t
英文摘要	A large number of lozenge-shaped and sandwiched polystyrene-block-poly(L-lactide) (PS-b-PLLA) single crystals were prepared by the self-seeding technique. The single crystals were nearly monodispersed in both thickness and diameter. They are well-dispersed because of the steric stabilization offered by tethered PS in p-xylene, which is a good solvent for PS. The suspensions were observed to separate into a transparent upper phase and a turbid lower phase. The lower phase showed uniform iridescent stripes extending over the, whole tube between crossed polarizers. The birefringence demonstrates he liquid crystal order, and the uniform stripes reveal that the phase is a well-oriented single domain. The phase transition concentration is rather low. Polarizing light microscopy (PLM) images show Schlieren texture and thread like texture. Small-angle X-ray scattering (SAXS) results showed that the single crystals in the liquid crystal phase oriented horizontally a vertical repeat distance of about 70 nm. Additionally, the possible structure of liquid crystal phase is being discussed. The novel disclike colloidal particle might be useful for anisotropic photonic materials;
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000289321000014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73467]
专题	中国科学院化学研究所
通讯作者	He, Tianbai
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China 3.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo Key Lab Polymer Mat, Ningbo 315201, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Chunbo,Wang, Zongbao,Huang, Haiying,et al. Large-Scale and Highly Oriented Liquid Crystal Phase in Suspensions of Polystyrene-block-poly(L-lactide) Single Crystals[J]. LANGMUIR,2011,27(8):4351-4357.
APA	Jiang, Chunbo,Wang, Zongbao,Huang, Haiying,&He, Tianbai.(2011).Large-Scale and Highly Oriented Liquid Crystal Phase in Suspensions of Polystyrene-block-poly(L-lactide) Single Crystals.LANGMUIR,27(8),4351-4357.
MLA	Jiang, Chunbo,et al."Large-Scale and Highly Oriented Liquid Crystal Phase in Suspensions of Polystyrene-block-poly(L-lactide) Single Crystals".LANGMUIR 27.8(2011):4351-4357.