Browse Prior Art Database

Producing Photoconductive Polymer Films

IP.com Disclosure Number: IPCOM000095187D
Original Publication Date: 1965-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 23K

Publishing Venue

IBM

Related People

Bartkus, EA: AUTHOR [+2]

Abstract

This technique is for producing photoconductive polymer films. Photoconductivity in a nonphotoconductive organic polymer can be induced by the physical admixture of a number of photoconductive materials. A class of organic compounds whose photoconductive properties have not heretofore been reported and which are found useful for this purpose are those derived from coumarin, drawing I.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Producing Photoconductive Polymer Films

This technique is for producing photoconductive polymer films. Photoconductivity in a nonphotoconductive organic polymer can be induced by the physical admixture of a number of photoconductive materials. A class of organic compounds whose photoconductive properties have not heretofore been reported and which are found useful for this purpose are those derived from coumarin, drawing I.

As a specific example, 4-methyl-7-dimethylamino-coumarin, drawing II, when dissolved in a m-terphenyl plasticized polystyrene matrix induces the mixture to be photoconductive on exposure to ultraviolet light. The photoconductive coumarin molecule could be incorporated into the polymer structure by suitable copolymerization of coumarin derivatives, with other desired monomers, e. g., a vinyl substituted coumarin, drawing III, with styrene.

1

Page 2 of 2

2

[This page contains 2 pictures or other non-text objects]