摘要:
A method of forming a polymer device including the steps (i) of depositing on a substrate a solution containing a polymer or oligomer and a crosslinking moiety, to form a layer, and, (ii) curing the layer formed in step (i) under conditions to form an insoluble crosslinked polymer, wherein the crosslinking moiety is present in step (i) in an amount in the range of from 0.05 mol % to 5 mol % based on the total number of moles or repeat units of the polymer or oligomer and the crosslinking moiety in the solution.
摘要:
The present invention provides a novel photosensitive compound having an azido group suitable for exposure to light of a short wavelength; a photosensitive resin containing the photosensitive compound; and a photosensitive composition containing the photosensitive compound or photosensitive resin. The photosensitive compound containing a photosensitive unit represented by formula (1): wherein R is selected from among the following groups, R: X is selected from among the following groups, X: and each of Y and Z represents a hydrogen atom, an alkyl group, an acetal-group-containing alkyl group, an aryl group, an aralkyl group, or a substituent containing a base-forming nitrogen atom, wherein at least one of R and X contains an azido group.
摘要:
Methods of adhering polymeric materials to a substrate, either directly or through linker molecules, are disclosed. Structures, for example, microstructures, including microwells and arrays of microwells, may be readily formed using the methods. In some embodiments, microstructures formed completely from polymeric materials are provided, making it possible to tailor the chemical and physical properties of the microstructures. For example, microwells having a bottom comprising a polar polymeric material and well sides/top comprising a non-polar polymeric material are provided. Biochemical reagents may be easily delivered to such nullsmart wellsnull because the intrinsic attraction of the well bottom for the reagents and the intrinsic repulsion between the well sides/top combine to direct the reagents to the wells.
摘要:
Printing plates having a photoresist layer thereon that can be exposed by a computer controller laser have improved sensitivity and do not require a photomask step. We have found photoresists that include a film forming polymer, an organo azide and a photosensitive dye that absorbs light at the frequency of the patterning laser and converts it to heat energy. The heat energy in turn elevates the temperature of the organo azide above its dissociation temperature, destroying the azide in areas exposed to the light source, and solubilizing those regions.Flood exposure with ultraviolet light hardens the resist and can be performed prior to or after pattern exposure.
摘要:
A positive type photosensitive composition developable with water or warm water alone of water-soluble photocrosslinking agent, water-soluble resin and synthetic resin emulsion and further a coloring agent, if necessary.
摘要:
A device for controlling cell arrangement having a pattern composed of a cell adhesive surface and a cell non-adhesive surface, which has a good selectivity of cell adhesion and which can provide a fine pattern of cells in high resolution by culturing cells in a usual manner. The device is prepared by a process which comprises applying a photosensitive, cell adhesive or cell non-adhesive polymer to a surface having a reverse cell adhesivity property to that of the applied polymer, and patternwise irradiating a light to the photosensitive polymer layer followed by development; a process which comprises patternwise irradiating UV or radiation to a cell non-adhesive surface to produce a cell adhesive functional group such as carboxyl group or amino group in the irradiated portion; or a process which comprises patternwise irradiating UV or radiation to a cell adhesive or non-adhesive surface made of plastics to produce a polymerization initiation site in the irradiated portion, and graft-polymerizing at least one monomer having the reverse cell adhesivity property to the plastic surface to produce a polymer on the irradiated portion of plastic surface.
摘要:
Fine patterns with high degree of resolution and high resistance to etching can be produced by coating a solution of a photosensitive composition comprising (a) an aromatic azide compound and (b) an alkaline-aqueous-solution-soluble polymer on a substrate, exposing predetermined portions of the coated photosensitive composition to ultraviolet light, developing with an alkaline aqueous solution to form a resist pattern, and etching the substrate using said resist pattern as a mask.
摘要:
4'-Azidobenzal-2-methoxyacetophenone is an excellent photosensitive compound and can give a photosensitive composition together with an alkaline-aqueous-solution-soluble polymer which can be insolubilized in an alkaline aqueous solution by photochemical curing with 4'-azidobenzal-2-methoxyacetophenone, and if necessary together with an organic solvent, said composition showing a very small change in viscosity with the lapse of long time.
摘要:
The present invention relates to a novel light sensitive photoresist composition which is used for the photo-engraving process or for production of phosphor screen of color picture tubes. The light sensitive photoresist composition of the present invention comprises a novel water-soluble aromatic azide compound and a photo-crosslinkable water-soluble polymer.