Crown cation complex effects. 15. Phase-transfer synthesis of arenediazocyanides and synthesis of arenediazosulfones from arenediazonium cations and the formation of reduced pyridazines by 2 + 4 cycloaddition reactions
Photoresponsive Heterocyclic Azo Compound, Method for Producing the Same, and Optical Information Recording Medium
申请人:Fukuda Takashi
公开号:US20070242322A1
公开(公告)日:2007-10-18
There are provided a novel optical information recording material or medium excellent in various holographic optical information recording properties such as sensitivity, response speed, long-term storage stability, and repeatability, and a substance therefor. A photoresponsive heterocyclic azo compound contains an oligomer or polymer having a photoresponsive moiety in at least one of the main chain and side chain, and the photoresponsive moiety is a building block represented by the following formula (1):
wherein HC
1
and HC
2
each represent a ring structure, at least one of them being a heterocyclic structure containing 1 or more heteroatom in the ring, R
1
and R
2
each represent a hydrogen atom or a substituent connected to the ring structure and may be the same or different ones, s and t each represent the number thereof, and X
1
and X
2
each represent a terminal group or a linking group, at least one of them being a linking group connected to the main chain of the oligomer or polymer and the terminal group being a hydrogen atom or a substituent.
Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device
申请人:FUJI XEROX CO., LTD.
公开号:US20040029038A1
公开(公告)日:2004-02-12
In the present invention, a photosensitive layer of an optical recording medium includes a photo-responsive high-molecular compound comprising a photo-responsive group (e.g., an azobenzene derivative) which is geometrically isomerized by light radiation, and a liquid crystal linear mesogen group (e.g., a biphenyl derivative), wherein the photo-responsive group and the linear mesogen group are respectively bonded as side chains. The invention provides an optical recording medium enabling large scale recording by making the photosensitive layer thick without impairing recording characteristics. The photo-responsive high-molecular compound preferably comprises an aromatic ring on a main chain. Further, the photo-responsive high-molecular compound preferably comprises a structural unit which is capable of forming a liquid-crystalline or crystalline polymer and a structural unit which is capable of forming an amorphous polymer.
Optical recording medium and method for producing the same
申请人:FUJI XEROX CO., LTD.
公开号:US20040191684A1
公开(公告)日:2004-09-30
An optical recording medium including a recording layer which is formed into a predetermined shape with a thickness of 0.1 mm to 5 mm and which contains a polyester represented by the following formula (1).
1
PHOTO-RESPONSIVE HIGH-MOLECULAR COMPOUND, PHOTO-RESPONSIVE HIGH-MOLECULAR COMPOSITION, DICARBOXYLIC ACID MONOMER, POLYESTER, OPTICAL RECORDING MEDIUM AND OPTICAL RECORD REPRODUCING DEVICE
申请人:Minabe Jiro
公开号:US20070184234A1
公开(公告)日:2007-08-09
In the present invention, a photosensitive layer of an optical recording medium includes a photo-responsive high-molecular compound comprising a photo-responsive group (e.g., an azobenzene derivative) which is geometrically isomerized by light radiation, and a liquid crystal linear mesogen group (e.g., a biphenyl derivative), wherein the photo-responsive group and the linear mesogen group are respectively bonded as side chains. The invention provides an optical recording medium enabling large scale recording by making the photosensitive layer thick without impairing recording characteristics. The photo-responsive high-molecular compound preferably comprises an aromatic ring on a main chain. Further, the photo-responsive high-molecular compound preferably comprises a structural unit which is capable of forming a liquid-crystalline or crystalline polymer and a structural unit which is capable of forming an amorphous polymer.
Method for providing a substrate structure for oriented neuron growth, substrate structure, and device for monitoring neurons
申请人:Sony International (Europe) GmbH
公开号:EP1054055A1
公开(公告)日:2000-11-22
The invention relates to a method for providing a substrate structure for oriented neuron growth, wherein a basic substrate is provided, characterized in that at least one alignment layer is deposited on said substrate and a mono- or multi-layer of a liquid crystal material is deposited on said at least one alignment layer or a combined alignment layer comprising liquid crystal material is deposited on said basic substrate, thereby providing a structured surface.