NOVEL TETRACARBOXYLIC DIANHYDRIDE, POLYIMIDE RESIN AND METHOD FOR PRODUCING THE SAME, PHOTOSENSITIVE RESIN COMPOSITIONS, PATTERNING PROCESS, METHOD FOR FORMING CURED FILM, INTERLAYER INSULATING FILM, SURFACE PROTECTIVE FILM, AND ELECTRONIC PARTS
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20190169211A1
公开(公告)日:2019-06-06
The present invention has been made in view of the circumstances herein. An object of the present invention is to provide: a tetracarboxylic dianhydride which can lead to a polyimide usable as a base resin of a photosensitive resin composition capable of forming a fine pattern and obtaining high resolution without impairing excellent characteristics such as mechanical strength and adhesiveness; a polyimide resin obtained by using the tetracarboxylic dianhydride; and a method for producing the polyimide resin. The tetracarboxylic dianhydride is shown by the following general formula (1).
ACETYLENE COMPOUND, SALT THEREOF, CONDENSATE THEREOF, AND COMPOSITION THEREOF
申请人:Fujifilm Corporation
公开号:EP2202220A1
公开(公告)日:2010-06-30
[Problem to be Solved]
To provide an acetylene compound having a structure in which a unit having an amino group and a unit having an ethynyl group are bonded via a linking group, the acetylene compound being introducable to a polymer having thermal resistance.
[Means for Solving the Problem] An acetylene compound represented by the following Formula (1) and a salt thereof:
wherein in Formula (1), X represents a single bond or a divalent linking group; A represents a hydrocarbon group, a heteroaromatic ring or a heteroalicyclic compound; B represents a hydrocarbon group, a heteroaromatic ring, a heteroalicyclic compound or a single bond; R1 represents a hydrogen atom, a hydrocarbon group, a heteroaromatic ring, a heteroalicyclic compound or a silyl group; R4 represents a hydrogen atom or a group that can be a substituent of an amino group; and m, n and a each independently represent an integer of 1 or greater.
[EN] A THREE ARM Y-SHAPED BISBIOTIN LIGAND<br/>[FR] LIGAND DE LA BISBIOTINE EN FORME DE Y À TROIS BRAS
申请人:UNIV ARIZONA
公开号:WO2015126963A1
公开(公告)日:2015-08-27
Embodiments of the present disclosure provide bisbiotin ligands and related conjugates and methods. The bisbiotin ligands, combined with streptavidin, can be used in the separation, labelling, targeting, and immobilization of biomolecules.
β-Cyclodextrin derivatives with varying lengths of π-conjugated arms have been synthesized. Their structures have been confirmed by 1H NMR, elemental analysis, mass spectrometry and X-ray crystal structure determination. Their self-inclusion properties are evaluated using Circular Dichroism, 1D and 2D 1H NMR measurements. It is found that, when the length of the π-conjugated arm is extended from 4 to 5 and to 6, the self-inclusion of the π-conjugated arm to the CD ring is enhanced. The effect of the self-inclusion on the optical properties of the CD-linked π-conjugated systems has been explored. Stronger inclusion leads to enhanced excitation-energy transfer.
我们合成了具有不同长度π-共轭臂的β-环糊精衍生物。它们的结构已通过 1H NMR、元素分析、质谱分析和 X 射线晶体结构测定得到证实。利用圆二色性、一维和二维 1H NMR 测量评估了它们的自包容特性。研究发现,当π-共轭臂的长度从 4 延长到 5 或 6 时,π-共轭臂对 CD 环的自包容作用增强。我们探讨了自包容对 CD 连接的 π 共轭体系的光学特性的影响。更强的自包容会增强激发-能量转移。