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1. (WO2018124140) NOVEL POLYMER AND DIAMINE COMPOUND, LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT

Pub. No.:    WO/2018/124140    International Application No.:    PCT/JP2017/046803
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Wed Dec 27 00:59:59 CET 2017
IPC: C07D 207/416
C08G 73/10
G02F 1/1337
Applicants: NISSAN CHEMICAL CORPORATION
日産化学株式会社
Inventors: KITA, Hiroshi
北 浩
YUKI, Tatsuya
結城 達也
Title: NOVEL POLYMER AND DIAMINE COMPOUND, LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Abstract:
Provided are: a method for producing a diamine compound represented by formula (1), the method comprising a step of reacting the bismaleimide compound represented by formula (A) with either a diamino compound in which P1 in the compound represented by formula (B) is an amino group, or a nitroamino compound in which P1 in the compound represented by formula (B) is a nitro group; the diamine represented by formula (1); a polymer obtained therefrom; and a liquid crystal alignment agent containing the polymer. [Chemical formula 1] R represents a hydrogen atom or a monovalent organic group, R1 represents a hydrogen atom, or a linear or branched C1-C5 alkyl group or aryl group, the two R1s in the same maleimide ring may be the same as or different from one another, and the two R1s may combine to form a C3-C6 alkylene, W1 represents a single bond or a divalent organic group, W2 represents a divalent organic group, Ar1 represents an aromatic ring, and L1 represents a C1-20 alkylene.