JP5397374B2 - 化合物、重合性液晶性組成物、光学素子および光情報記録再生装置 - Google Patents
化合物、重合性液晶性組成物、光学素子および光情報記録再生装置 Download PDFInfo
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- JP5397374B2 JP5397374B2 JP2010514562A JP2010514562A JP5397374B2 JP 5397374 B2 JP5397374 B2 JP 5397374B2 JP 2010514562 A JP2010514562 A JP 2010514562A JP 2010514562 A JP2010514562 A JP 2010514562A JP 5397374 B2 JP5397374 B2 JP 5397374B2
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
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- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
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- G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
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- C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
- C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
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Description
1)使用波長や用途に応じて適正なリタデーション値(Rd値)を持っていること。
2)面内の光学特性(Rd値、透過率など)が均一であること。
3)使用波長において、散乱や吸収がほとんど無いこと。
4)素子を構成する他の材料と光学特性を合わせやすいこと。
5)使用波長において、屈折率や屈折率異方性の波長分散が小さいこと。
CH2=CH−COO−Cy−Cy−C3H7
CH2=CH−COO−Cy−Cy−C5H11
本発明の第1の態様において、R1およびR4は水素原子であり、R3は、前記アルキレン基中の炭素原子に結合した水素原子の一部または全部がフッ素原子に置換されていてもよいアルキレン基、または、環基と結合する末端に酸素原子を有するアルキレン基であることが好ましい。
下記式(2)で表される非架橋性化合物を70質量%〜99質量%含むことができる。
CH2=CH−COO−Cy−Ph−CmH2m−OCO−CH=CH2
CH2=CH−COO−Cy−Ph−O−CmH2m−OCO−CH=CH2
CH2=CH−COO−CnH2n−O−Cy−Ph−CmH2m−OCO−CH=CH2
CH2=CH−COO−CnH2n−O−Cy−Ph−O−CmH2m−OCO−CH=CH2
CH2=CH−COO−CnH2n−Cy−Ph−CmH2m−OCO−CH=CH2
Y3は、単結合または−CH2−CH2−を表す。
<化合物(1A)の合成>
まず、下記の反応式にしたがって、トランス−4−(4−(6−ヒドロキシヘキシロキシ)フェニル)シクロヘキサノール(化合物1A−1)を合成した。
1H−NMR(400MHz、CDCl3):δ=1.40−1.60(m,8H,−CH2−)、1.69−1.80(m,4H,−CH2−)、1.90−2.0(m,2H,−CH2−)、2.10−2.20(m,2H,−CH2―)、2.49(m,1H,Ar−CH)、3.93(t,2H,J=6.6Hz,−O−CH2−)、4.17(t,2H,J=6.6Hz,−O−CH2−)、4.80−4.90(m,1H,−O−CH−)、5.79−5.82(d,2H,J=12Hz,アクリル)、6.08―6.38(dd,2H,アクリル)、6.37−6.44(d,2H,アクリル)、6.82(d,2H,J=8.8Hz芳香族H)、7.10
(d,2H,J=8.8Hz、芳香族H)
<化合物(1B)の合成>
まず、下記の反応式にしたがって、2−(6−ブロモヘキシロキシ)−テトラヒドロ−2H−ピラン(化合物(1B−1))を合成した。
1H−NMR(400MHz、CDCl3):δ=1.19−1.82(m,20H,−CH2−)、1.90(m,2H,−CH2−)、2.13(m,2H,−CH2−)、2.45(m,1H,Ar−CH)、3.25(m,1H,O−CH−)3.49(t,2H,−O−CH2−)、3.93(t,2H,−O−CH2−)、4.10−4.20(m,4H,−O−CH2−)、5.79−5.82(d,2H,アクリル)、6.08―6.16(dd,2H,アクリル)、6.37−6.44(d,2H,アクリル)、6.82(d,2H,芳香族H)、7.10(d,2H,芳香族H)
<重合性液晶性組成物(S1)の調製>
下記式で表される化合物(4−1)、(4−2)、(4−3)および(4−4)と、実施例1で合成した化合物(1A)とを、13:13:33.4:33.4:7.2のモル比で混合した後、重合開始剤(チバスペシャリティーケミカルズ社製、商品名:イルガキュア754)を0.1質量%、下記の化合物(5−1)(ヒンダードアミン系の光安定化剤(旭電化工業社製、商品名:LA62))を0.3質量%、化合物(5−2)(ヒンダードフェノール系の重合禁止剤(旭電化工業社製、商品名:AO50))を0.4質量%加えた。これにより、重合性液晶性組成物(S1)を得た。化合物(1A):化合物(4−1)、(4−2)、(4−3)および(4−4)の合計は、9.1質量%:90.9質量%である。
<回折格子(K1)の作製>
まず、縦5cm、横5cm、厚さ0.5mmのガラス基板を2枚準備し、それぞれのガラス基板にポリイミド溶液をスピンコータで塗布して乾燥した。そして、得られたポリイミド膜の各々に対して、ナイロンクロスで一定方向にラビング処理を行い、配向膜とした。次に、一方のガラス基板の配向膜の上に離型剤を塗布してから、この基板をエポキシ系のシール剤を介して他方のガラス基板に貼り合わせてセルとした。このとき、配向膜を形成した面が互いに内側を向くようにするとともに、それぞれのガラス基板に対して行った配向処理の方向が同じとなるようにした。また、ガラス基板の間には、直径3.5μmのガラスビーズを散布して、これらの間隔が3.5μmとなるようにした。
<重合性液晶性組成物(S2)の調製>
実施例3で述べた化合物(4−1)、(4−2)、(4−3)および(4−4)を、14:14:36:36のモル比で混合した後、重合開始剤(チバスペシャリティーケミカルズ社製、商品名:イルガキュア754)を0.1質量%、下記の化合物(5−3)(ヒンダードアミン系の光安定化剤(旭電化工業社製、商品名:Tinuvin123))を0.3質量%、実施例3で述べた化合物(5−2)(ヒンダードフェノール系の重合禁止剤(旭電化工業社製、商品名:AO50))を0.4質量%加えた。これにより、重合性液晶性組成物(S2)を得た。
<回折格子(K2)の作製>
実施例4と同様にして作製したセルに、比較例1で合成した重合性液晶性組成物(S2)を70℃の温度で注入した。次いで、温度66℃において、強度45mW/cm2の紫外線を積算光量が8,100mJ/cm2となるように照射し、重合性液晶性組成物(S2)の光重合を行った。その後、ホットプレートを用いて、145℃で15分間の加熱処理を行った。これにより、高分子液晶膜(P2)が得られた。
実施例4で作製した回折格子(K1)と、比較例2で作製した回折格子(K2)に対し、Krレーザ装置(コヒーレント社製、商品名:イノーバ302)を用いて、Krレーザ光(波長407、413nmのマルチモード)を最大回折する方位角に設定して垂直入射させた。尚、試験温度は80℃とし、積算光量は10Wh/mm2〜60Wh/mm2とした。
なお、2008年5月30日に出願された日本特許出願2008−142147号の明細書、特許請求の範囲、図面及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。
2 回折格子
3 対物レンズ
4 光ディスク
5 光検出器
6 1/4波長板
Claims (8)
- 下記式(1)で表される化合物であって、
CH2=CR1−COO−R2−Cy−Ph−R3−OCO−CR4=CH2 (1)
R1およびR4は、それぞれ独立して水素原子またはメチル基を表し、
R2は、単結合、または、環基と結合する末端に酸素原子を有する炭素数が1〜15のアルキレン基を表し、
R3は、環基と結合する末端に酸素原子を有するまたは有しない炭素数が1〜15のアルキレン基を表し、
R2が単結合の場合を除いて、R2および/またはR3は、それぞれ独立してアルキレン基の炭素−炭素結合間にエーテル結合性の酸素原子を有していてもよく、さらに該基中の炭素原子に結合した水素原子の一部または全部がフッ素原子に置換されていてもよく、
Cyは、トランス−1,4−シクロヘキシレン基を表し、該基中の炭素原子に結合した水素原子がそれぞれ独立にフッ素原子、塩素原子またはメチル基に置換されていてもよく、Phは、1,4−フェニレン基を表し、該基中の炭素原子に結合した水素原子がそれぞれ独立にフッ素原子、塩素原子またはメチル基に置換されていてもよいことを特徴とする化合物。 - R2が単結合であることを特徴とする請求項1に記載の化合物。
- R1およびR4は水素原子であり、
R3は、前記アルキレン基中の炭素原子に結合した水素原子の一部または全部がフッ素原子に置換されていてもよいアルキレン基、または、環基と結合する末端に酸素原子を有するアルキレン基であることを特徴とする請求項1または2に記載の化合物。 - 請求項1〜3のいずれか1項に記載の化合物と、該化合物以外の重合性液晶性化合物とを含むことを特徴とする重合性液晶性組成物。
- 請求項1〜3のいずれか1項に記載の化合物を1質量%〜30質量%、かつ他の架橋性化合物も合わせて架橋性化合物を合計で1質量%〜30質量%と、
下記式(2)で表される非架橋性化合物を70質量%〜99質量%含み、
CH2=CR5−COO−R6−A1−Y1−A2−A3−A4−R7 (2)
R5は、水素原子またはメチル基を表し、
R6は、単結合または炭素数が1〜15のアルキレン基を表し、アルキレン基の場合には、それぞれ独立してアルキレン基の炭素−炭素結合間または環基と結合する末端にエーテル結合性の酸素原子を有していてもよく、さらに該基中の炭素原子に結合した水素原子の一部または全部がフッ素原子に置換されていてもよく、
R7は、炭素数が1〜12のアルキル基、炭素数が1〜12のアルコキシ基、炭素数が1〜12のアルキルカルボニルオキシ基またはフッ素原子であり、アルキル基、アルコキシ基またはアルキルカルボニルオキシ基の場合には該基中の炭素原子に結合した水素原子の一部または全部がフッ素原子に置換されていてもよく、
Y1は、単結合または−COO−を表し、
A1、A2、A3およびA4は、それぞれ独立して、単結合、トランス−1,4−シクロヘキシレン基または1,4−フェニレン基を表し、A1、A2、A3およびA4の内、単結合は2個以下であり、且つ、少なくとも1つはトランス−1,4−シクロヘキシレン基であり、且つ、1,4−フェニレン基が3個連続していることはなく、トランス−1,4−シクロヘキシレン基または1,4−フェニレン基の水素原子の一部または全部がフッ素原子に置換されていてもよいことを特徴とする請求項4に記載の重合性液晶性組成物。 - 請求項4または5に記載の重合性液晶性組成物を重合して得られる高分子液晶を有することを特徴とする光学素子。
- 光記録媒体に情報を記録する、および/または、光記録媒体に記録された情報を再生する光情報記録再生装置であって、
請求項6に記載の光学素子を有することを特徴とする光情報記録再生装置。 - 青色レーザを光源として使用することを特徴とする請求項7に記載の光情報記録再生装置。
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US9689793B2 (en) * | 2014-02-14 | 2017-06-27 | Kent State University | System and method thereof for accurate optical detection of amphiphiles at a liquid crystal interface |
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001220583A (ja) * | 1999-11-30 | 2001-08-14 | Asahi Glass Co Ltd | 重合性液晶組成物、これを重合した高分子液晶および用途 |
JP2004263037A (ja) * | 2003-02-28 | 2004-09-24 | Asahi Glass Co Ltd | アクリル酸誘導体組成物、これを重合した高分子液晶および用途 |
WO2006001096A1 (ja) * | 2004-06-23 | 2006-01-05 | Asahi Glass Company, Limited | 重合性液晶化合物、液晶組成物、光学異方性材料、および光学素子 |
JP2006219533A (ja) * | 2005-02-08 | 2006-08-24 | Asahi Glass Co Ltd | 重合性液晶化合物、液晶組成物、光学異方性材料および光学素子 |
JP2009080450A (ja) * | 2007-09-06 | 2009-04-16 | Fujifilm Corp | 光学補償シートの製造方法 |
JP2009265597A (ja) * | 2007-09-27 | 2009-11-12 | Fujifilm Corp | 光学補償フィルム、偏光板、及び液晶表示装置 |
JP2009300917A (ja) * | 2008-06-17 | 2009-12-24 | Fujifilm Corp | 光学フィルム、偏光板、及び液晶表示装置 |
JP2010085534A (ja) * | 2008-09-30 | 2010-04-15 | Fujifilm Corp | 光学補償フィルム、及びその製造方法 |
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Publication number | Publication date |
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JPWO2009145321A1 (ja) | 2011-10-20 |
CN102046584B (zh) | 2014-01-22 |
EP2295396A1 (en) | 2011-03-16 |
CN102046584A (zh) | 2011-05-04 |
KR20110013353A (ko) | 2011-02-09 |
US8039064B2 (en) | 2011-10-18 |
US20110063966A1 (en) | 2011-03-17 |
WO2009145321A1 (ja) | 2009-12-03 |
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