ICCAS OpenIR
Large-Scale and Highly Oriented Liquid Crystal Phase in Suspensions of Polystyrene-block-poly(L-lactide) Single Crystals
Jiang, Chunbo1,2; Wang, Zongbao3; Huang, Haiying1,2; He, Tianbai1,2
2011-04-19
Source PublicationLANGMUIR
ISSN0743-7463
Volume27Issue:8Pages:4351-4357
AbstractA 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;
DOI10.1021/la200314t
Indexed BySCI
Language英语
WOS IDWOS:000289321000014
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73468
Collection中国科学院化学研究所
Corresponding AuthorHe, Tianbai
Affiliation1.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
Recommended Citation
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.
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