Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases

Masayoshi Ojima; Takeshi Noma; Hiroaki Asagi; Akihiko Fujii; Masanori Ozaki; Hirotsugu Kikuchi

doi:10.1143/APEX.2.021502

Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases

Masayoshi Ojima, Takeshi Noma, Hiroaki Asagi, Akihiko Fujii, Masanori Ozaki, Hirotsugu Kikuchi

Department of Integrated Materials

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Temperature range of cholesteric blue phase I (BP I) was expanded by infiltrating liquid crystal (LC) that exhibits BP I and BP II into a mixed cellulose ester membrane (MCEM). Cooling rate dependence of the BP I temperature range was investigated, which indicated that the expansion of BP temperature range upon infiltrating LC into MCEM was induced by the pinning effect at network surfaces in the MCEM. In particular, the temperature range of BP I infiltrated in 0.2-μm MCEM is eight times wider than that of pure BP LC compound. Pore size dependence of expansions was also investigated.

Original language	English
Article number	021502
Journal	Applied Physics Express
Volume	2
Issue number	2
DOIs	https://doi.org/10.1143/APEX.2.021502
Publication status	Published - Feb 2009

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/APEX.2.021502

Cite this

@article{6471c2e23e394ad89f904f8e363b945d,

title = "Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases",

abstract = "Temperature range of cholesteric blue phase I (BP I) was expanded by infiltrating liquid crystal (LC) that exhibits BP I and BP II into a mixed cellulose ester membrane (MCEM). Cooling rate dependence of the BP I temperature range was investigated, which indicated that the expansion of BP temperature range upon infiltrating LC into MCEM was induced by the pinning effect at network surfaces in the MCEM. In particular, the temperature range of BP I infiltrated in 0.2-μm MCEM is eight times wider than that of pure BP LC compound. Pore size dependence of expansions was also investigated.",

author = "Masayoshi Ojima and Takeshi Noma and Hiroaki Asagi and Akihiko Fujii and Masanori Ozaki and Hirotsugu Kikuchi",

year = "2009",

month = feb,

doi = "10.1143/APEX.2.021502",

language = "English",

volume = "2",

journal = "Applied Physics Express",

issn = "1882-0778",

publisher = "Japan Society of Applied Physics",

number = "2",

}

TY - JOUR

T1 - Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases

AU - Ojima, Masayoshi

AU - Noma, Takeshi

AU - Asagi, Hiroaki

AU - Fujii, Akihiko

AU - Ozaki, Masanori

AU - Kikuchi, Hirotsugu

PY - 2009/2

Y1 - 2009/2

N2 - Temperature range of cholesteric blue phase I (BP I) was expanded by infiltrating liquid crystal (LC) that exhibits BP I and BP II into a mixed cellulose ester membrane (MCEM). Cooling rate dependence of the BP I temperature range was investigated, which indicated that the expansion of BP temperature range upon infiltrating LC into MCEM was induced by the pinning effect at network surfaces in the MCEM. In particular, the temperature range of BP I infiltrated in 0.2-μm MCEM is eight times wider than that of pure BP LC compound. Pore size dependence of expansions was also investigated.

AB - Temperature range of cholesteric blue phase I (BP I) was expanded by infiltrating liquid crystal (LC) that exhibits BP I and BP II into a mixed cellulose ester membrane (MCEM). Cooling rate dependence of the BP I temperature range was investigated, which indicated that the expansion of BP temperature range upon infiltrating LC into MCEM was induced by the pinning effect at network surfaces in the MCEM. In particular, the temperature range of BP I infiltrated in 0.2-μm MCEM is eight times wider than that of pure BP LC compound. Pore size dependence of expansions was also investigated.

UR - http://www.scopus.com/inward/record.url?scp=60349114207&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=60349114207&partnerID=8YFLogxK

U2 - 10.1143/APEX.2.021502

DO - 10.1143/APEX.2.021502

M3 - Article

AN - SCOPUS:60349114207

SN - 1882-0778

VL - 2

JO - Applied Physics Express

JF - Applied Physics Express

IS - 2

M1 - 021502

ER -

Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this