COPOLYMER AND OPTICAL FILM USING SAME

Provided are a novel copolymer which is expected to form an optical film that has excellent retardation characteristics such as high retardation even in a thin film and an optical film using the same.A copolymer comprising a residue unit A represented by the general formula (1) and a residue unit B...

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Bibliographische Detailangaben
Hauptverfasser:	FUJII, Yasuyoshi, ITO, Saki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Provided are a novel copolymer which is expected to form an optical film that has excellent retardation characteristics such as high retardation even in a thin film and an optical film using the same.A copolymer comprising a residue unit A represented by the general formula (1) and a residue unit B represented by the general formula (2):wherein Rand Reach independently represent hydrogen (provided that the case where Rand Rare both hydrogen is eliminated), a cyano group, an ester group (-C(=O)OX), an amide group (-C(=O)N(X)(X)), or an acyl group (-C(=O)X) (where Xto Xeach independently represent a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 1 to 12 carbon atoms, or a cyclic alkyl group having 3 to 6 carbon atoms, and Xrepresents a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 1 to 12 carbon atoms, or a cyclic group having 3 to 14 carbon atoms); Rto Reach independently represent hydrogen, a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 1 to 12 carbon atoms, a cyclic group having 3 to 14 carbon atoms, a halogen, a hydroxy group, a carboxy group, a nitro group, a cyano group, an alkoxy group (-OX), an ester group (-C(=O)OX), an amide group (-C(=O)N(X)(X)), an acyl group (-C(=O)X), an amino group (-N(X)(X)), or a sulfonic acid group (-SOOX) (where Xto Xeach independently represent a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 1 to 12 carbon atoms, or a cyclic alkyl group having 3 to 6 carbon atoms, Xto Xeach independently represent hydrogen, a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 1 to 12 carbon atoms, or a cyclic alkyl group having 3 to 6 carbon atoms); and adjacent substituents among Rto Rmay form a fused ring structure each other,wherein Rrepresents an m-membered heterocyclic residue containing one or more heteroatoms or a 5-membered or 6-membered ring residue containing no heteroatom (provided that, when Ris a 6-membered ring residue containing no heteroatom, at least one of Rto Rin the general formula (1) represents a hydroxy group), and m represents an integer of 5 to 10; and the m-membered heterocyclic residue, the 5-membered ring residue, and the 6-membered ring residue may form a fused ring structure.