Synthesis of a Zero-Birefringence Optical Polymer by the Birefringent Crystal Dopant Method

Hisanori Ohkita; Masaki Mukoh; Akihiro Tagaya; Yasuhiro Koike

Synthesis of a Zero-Birefringence Optical Polymer by the Birefringent Crystal Dopant Method

Hisanori Ohkita, Masaki Mukoh, Akihiro Tagaya, Yasuhiro Koike

Department of Applied Physics and Physico-Informatics

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

6 Citations (Scopus)

Abstract

Birefringence induced by the orientation of polymer main chains during an injection-molding or extrusion processing restricts the application of optical polymers to optical devices that require maintaining the polarization state of incident light, We propose the "birefringent crystal dopant method" to compensate the birefringence of polymers by homogeneous doping with an opposite birefringent needle-like crystal. Strontium carbonate (SrCO ₃) was selected for this method and synthesized, with particle lengths of 50-200nm and aspect ratios of 2-5. SrCO₃ was doped into poly(MMA/BzMA= 78/22(wt./wt.)) film. The film was uniaxially drawn at 130°C and 4mm/min. For the first time, the positive birefringence of the drawn copolymer film at a wavelength of 633nm was compensated by doping with 0.3wt.% of SrCO₃ without losing transparency and thermostability.

Original language	English
Pages (from-to)	207-211
Number of pages	5
Journal	Materials Research Society Symposium - Proceedings
Volume	771
Publication status	Published - 2003 Nov 10
Event	Organic and Polymeric Materials and Devices - San Francisco, CA, United States Duration: 2003 Apr 22 → 2003 Apr 25

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Synthesis of a Zero-Birefringence Optical Polymer by the Birefringent Crystal Dopant Method",

abstract = "Birefringence induced by the orientation of polymer main chains during an injection-molding or extrusion processing restricts the application of optical polymers to optical devices that require maintaining the polarization state of incident light, We propose the {"}birefringent crystal dopant method{"} to compensate the birefringence of polymers by homogeneous doping with an opposite birefringent needle-like crystal. Strontium carbonate (SrCO 3) was selected for this method and synthesized, with particle lengths of 50-200nm and aspect ratios of 2-5. SrCO3 was doped into poly(MMA/BzMA= 78/22(wt./wt.)) film. The film was uniaxially drawn at 130°C and 4mm/min. For the first time, the positive birefringence of the drawn copolymer film at a wavelength of 633nm was compensated by doping with 0.3wt.% of SrCO3 without losing transparency and thermostability.",

author = "Hisanori Ohkita and Masaki Mukoh and Akihiro Tagaya and Yasuhiro Koike",

year = "2003",

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language = "English",

volume = "771",

pages = "207--211",

journal = "Materials Research Society Symposium - Proceedings",

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publisher = "Materials Research Society",

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TY - JOUR

T1 - Synthesis of a Zero-Birefringence Optical Polymer by the Birefringent Crystal Dopant Method

AU - Ohkita, Hisanori

AU - Mukoh, Masaki

AU - Tagaya, Akihiro

AU - Koike, Yasuhiro

PY - 2003/11/10

Y1 - 2003/11/10

N2 - Birefringence induced by the orientation of polymer main chains during an injection-molding or extrusion processing restricts the application of optical polymers to optical devices that require maintaining the polarization state of incident light, We propose the "birefringent crystal dopant method" to compensate the birefringence of polymers by homogeneous doping with an opposite birefringent needle-like crystal. Strontium carbonate (SrCO 3) was selected for this method and synthesized, with particle lengths of 50-200nm and aspect ratios of 2-5. SrCO3 was doped into poly(MMA/BzMA= 78/22(wt./wt.)) film. The film was uniaxially drawn at 130°C and 4mm/min. For the first time, the positive birefringence of the drawn copolymer film at a wavelength of 633nm was compensated by doping with 0.3wt.% of SrCO3 without losing transparency and thermostability.

AB - Birefringence induced by the orientation of polymer main chains during an injection-molding or extrusion processing restricts the application of optical polymers to optical devices that require maintaining the polarization state of incident light, We propose the "birefringent crystal dopant method" to compensate the birefringence of polymers by homogeneous doping with an opposite birefringent needle-like crystal. Strontium carbonate (SrCO 3) was selected for this method and synthesized, with particle lengths of 50-200nm and aspect ratios of 2-5. SrCO3 was doped into poly(MMA/BzMA= 78/22(wt./wt.)) film. The film was uniaxially drawn at 130°C and 4mm/min. For the first time, the positive birefringence of the drawn copolymer film at a wavelength of 633nm was compensated by doping with 0.3wt.% of SrCO3 without losing transparency and thermostability.

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M3 - Conference article

AN - SCOPUS:0242353864

SN - 0272-9172

VL - 771

SP - 207

EP - 211

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Organic and Polymeric Materials and Devices

Y2 - 22 April 2003 through 25 April 2003

ER -

Synthesis of a Zero-Birefringence Optical Polymer by the Birefringent Crystal Dopant Method

Abstract

ASJC Scopus subject areas

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