Relaxation dynamics of NLO crosslinked polyurethane with hemicyanine-type chromophore

Kwang Sup Lee; Hang Young Woo; Ki Jeong Moon; Hong Ku Shim; Miyun Jeong; Tong Kun Lim

doi:10.1080/10587259808044457

Relaxation dynamics of NLO crosslinked polyurethane with hemicyanine-type chromophore

Kwang Sup Lee, Hang Young Woo, Ki Jeong Moon, Hong Ku Shim, Miyun Jeong, Tong Kun Lim

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The crosslinked polyurethane PU-W was prepared by the reaction of poly[(phenylisocyanate)-co-formaldehyde] and hydroxy-functionalized hemicyanine-type NLO chromophore. For the poled and cured polymer the χ⁽²⁾ value was 30.2 pm/V measured at a wavelength of 1.064 μm. Thermal stability studies performed on PU-PV sample by the second harmonic generation activity indicated a nearly no decay of χ⁽²⁾ value due to the lattice hardening of the polyurethane matrix with three bonding sites. The relaxation behaviors of aligned dipoles in PU-PV were also studied by varying poling and crosslinking conditions.

Original language	English
Pages (from-to)	47-52
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	316
DOIs	https://doi.org/10.1080/10587259808044457
Publication status	Published - 1998
Externally published	Yes
Event	Proceedings of the 1998 IEEE Instrumentation and Measurement Technology Conference, IMTC. Part 1 (of 2) - St.Paul, MN, USA Duration: 1998 May 18 → 1998 May 21

Keywords

Crosslinked polyurethane
Nonlinearity
Relaxation dynamics

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1080/10587259808044457

Cite this

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title = "Relaxation dynamics of NLO crosslinked polyurethane with hemicyanine-type chromophore",

abstract = "The crosslinked polyurethane PU-W was prepared by the reaction of poly[(phenylisocyanate)-co-formaldehyde] and hydroxy-functionalized hemicyanine-type NLO chromophore. For the poled and cured polymer the χ(2) value was 30.2 pm/V measured at a wavelength of 1.064 μm. Thermal stability studies performed on PU-PV sample by the second harmonic generation activity indicated a nearly no decay of χ(2) value due to the lattice hardening of the polyurethane matrix with three bonding sites. The relaxation behaviors of aligned dipoles in PU-PV were also studied by varying poling and crosslinking conditions.",

keywords = "Crosslinked polyurethane, Nonlinearity, Relaxation dynamics",

author = "Lee, {Kwang Sup} and Woo, {Hang Young} and Moon, {Ki Jeong} and Shim, {Hong Ku} and Miyun Jeong and Lim, {Tong Kun}",

year = "1998",

doi = "10.1080/10587259808044457",

language = "English",

volume = "316",

pages = "47--52",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

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note = "Proceedings of the 1998 IEEE Instrumentation and Measurement Technology Conference, IMTC. Part 1 (of 2) ; Conference date: 18-05-1998 Through 21-05-1998",

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T1 - Relaxation dynamics of NLO crosslinked polyurethane with hemicyanine-type chromophore

AU - Lee, Kwang Sup

AU - Woo, Hang Young

AU - Moon, Ki Jeong

AU - Shim, Hong Ku

AU - Jeong, Miyun

AU - Lim, Tong Kun

PY - 1998

Y1 - 1998

N2 - The crosslinked polyurethane PU-W was prepared by the reaction of poly[(phenylisocyanate)-co-formaldehyde] and hydroxy-functionalized hemicyanine-type NLO chromophore. For the poled and cured polymer the χ(2) value was 30.2 pm/V measured at a wavelength of 1.064 μm. Thermal stability studies performed on PU-PV sample by the second harmonic generation activity indicated a nearly no decay of χ(2) value due to the lattice hardening of the polyurethane matrix with three bonding sites. The relaxation behaviors of aligned dipoles in PU-PV were also studied by varying poling and crosslinking conditions.

AB - The crosslinked polyurethane PU-W was prepared by the reaction of poly[(phenylisocyanate)-co-formaldehyde] and hydroxy-functionalized hemicyanine-type NLO chromophore. For the poled and cured polymer the χ(2) value was 30.2 pm/V measured at a wavelength of 1.064 μm. Thermal stability studies performed on PU-PV sample by the second harmonic generation activity indicated a nearly no decay of χ(2) value due to the lattice hardening of the polyurethane matrix with three bonding sites. The relaxation behaviors of aligned dipoles in PU-PV were also studied by varying poling and crosslinking conditions.

KW - Crosslinked polyurethane

KW - Nonlinearity

KW - Relaxation dynamics

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DO - 10.1080/10587259808044457

M3 - Conference article

AN - SCOPUS:0032056913

SN - 1542-1406

VL - 316

SP - 47

EP - 52

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

T2 - Proceedings of the 1998 IEEE Instrumentation and Measurement Technology Conference, IMTC. Part 1 (of 2)

Y2 - 18 May 1998 through 21 May 1998

ER -

Relaxation dynamics of NLO crosslinked polyurethane with hemicyanine-type chromophore

Abstract

Keywords

ASJC Scopus subject areas

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