Enhancement of surface-relief gratings recorded on amphiphilic liquid-crystalline diblock copolymer by nanoscale phase separation

Haifeng Yu; Kunihiko Okano; Atsushi Shishido; Tomiki Ikeda; Kaori Kamata; Motonori Komura; Tomokazu Iyoda

doi:10.1002/adma.200500346

Enhancement of surface-relief gratings recorded on amphiphilic liquid-crystalline diblock copolymer by nanoscale phase separation

Haifeng Yu
, Kunihiko Okano
, Atsushi Shishido
, Tomiki Ikeda
, Kaori Kamata
, Motonori Komura
, Tomokazu Iyoda

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

113 Citations (Scopus)

Abstract

A series of novel amphiphilic liquid crystalline (LC) diblock copolymers (ADLC) consisting of flexible poly(ethylene oxide) (PEO) as a hydrophilic segment and poly(methacrylate) containing an azobenzene (AZO) moiety, are presented . Holographic gratings were recorded for ADLC - P40A37 and surface modulation was enhanced by nanoscale phase separation (NSPS). The holographic gratings can be inscribed at room temperature by two coherent laser beams with low intensities in a short time and subsequent annealing improves the diffraction efficiency (DE) by almost two orders of magnitude. These gratings can be applied to secure information storage since the information can be easily read out by thermal treatment.

Original language	English
Pages (from-to)	2184-2188
Number of pages	5
Journal	Advanced Materials
Volume	17
Issue number	18
DOIs	https://doi.org/10.1002/adma.200500346
Publication status	Published - 2005 Sept 16
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200500346

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title = "Enhancement of surface-relief gratings recorded on amphiphilic liquid-crystalline diblock copolymer by nanoscale phase separation",

abstract = "A series of novel amphiphilic liquid crystalline (LC) diblock copolymers (ADLC) consisting of flexible poly(ethylene oxide) (PEO) as a hydrophilic segment and poly(methacrylate) containing an azobenzene (AZO) moiety, are presented . Holographic gratings were recorded for ADLC - P40A37 and surface modulation was enhanced by nanoscale phase separation (NSPS). The holographic gratings can be inscribed at room temperature by two coherent laser beams with low intensities in a short time and subsequent annealing improves the diffraction efficiency (DE) by almost two orders of magnitude. These gratings can be applied to secure information storage since the information can be easily read out by thermal treatment.",

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AU - Yu, Haifeng

AU - Okano, Kunihiko

AU - Shishido, Atsushi

AU - Ikeda, Tomiki

AU - Kamata, Kaori

AU - Komura, Motonori

AU - Iyoda, Tomokazu

PY - 2005/9/16

Y1 - 2005/9/16

N2 - A series of novel amphiphilic liquid crystalline (LC) diblock copolymers (ADLC) consisting of flexible poly(ethylene oxide) (PEO) as a hydrophilic segment and poly(methacrylate) containing an azobenzene (AZO) moiety, are presented . Holographic gratings were recorded for ADLC - P40A37 and surface modulation was enhanced by nanoscale phase separation (NSPS). The holographic gratings can be inscribed at room temperature by two coherent laser beams with low intensities in a short time and subsequent annealing improves the diffraction efficiency (DE) by almost two orders of magnitude. These gratings can be applied to secure information storage since the information can be easily read out by thermal treatment.

AB - A series of novel amphiphilic liquid crystalline (LC) diblock copolymers (ADLC) consisting of flexible poly(ethylene oxide) (PEO) as a hydrophilic segment and poly(methacrylate) containing an azobenzene (AZO) moiety, are presented . Holographic gratings were recorded for ADLC - P40A37 and surface modulation was enhanced by nanoscale phase separation (NSPS). The holographic gratings can be inscribed at room temperature by two coherent laser beams with low intensities in a short time and subsequent annealing improves the diffraction efficiency (DE) by almost two orders of magnitude. These gratings can be applied to secure information storage since the information can be easily read out by thermal treatment.

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JO - Advanced Materials

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Enhancement of surface-relief gratings recorded on amphiphilic liquid-crystalline diblock copolymer by nanoscale phase separation

Abstract

ASJC Scopus subject areas

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