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Browse Prior Art Database

Organic Photoconductors

IP.com Disclosure Number: IPCOM000096071D
Original Publication Date: 1964-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 21K

Publishing Venue

IBM

Related People

Sporer, AH: AUTHOR [+2]

Abstract

The general class of alkenyl substituted dibenzothiophene polymers has the following structural formula: (Image Omitted) where n = 0-21 and where R, R' and R" are each selected from the group consisting of hydrogen, aryl, alkyl, substituted alkyl and substituted aryl groups. This general class has improved photoconductivity when combined with sensitizers which are capable of complexing the aromatic units of the polymers and which exhibit a resultant charge transfer absorption band within either the visible or ultraviolet or both regions of the electromagnetic spectrum. These polymers can be either isotactic, syndiotactic, or atactic.

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Organic Photoconductors

The general class of alkenyl substituted dibenzothiophene polymers has the following structural formula:

(Image Omitted)

where n = 0-21 and where R, R' and R" are each selected from the group consisting of hydrogen, aryl, alkyl, substituted alkyl and substituted aryl groups. This general class has improved photoconductivity when combined with sensitizers which are capable of complexing the aromatic units of the polymers and which exhibit a resultant charge transfer absorption band within either the visible or ultraviolet or both regions of the electromagnetic spectrum. These polymers can be either isotactic, syndiotactic, or atactic.

Specific examples of this class of polymers are poly-2-vinyl-dibenzathiophene, poly-4-vinyldibenzothiophene, poly-2-(3-butenyl)-dibenzothiophene, poly-4-(3-butenyl)dibenzothiophene, poly-2-methallyldibenzothiophene, poly-4-methallyldibenzothiophene, poly-2-(10)phenyl-10-undecenyldibenzothiophene, poly-4-(10 phenyl)10-undecenyl)dibenzothiophene, poly-2-(5-hexenyljdibenzothiophene, poly-4-(5-hexenyl)dibenzothiophene, poly-2-(22-tricosenyl)dibenzothiophene, and poly-4-(22-tricosenyl)dibenzothiWphene. The poly-1-alkenyl-debenzathiophenes are also within this general class but are not as preferred as 2-alkenyl and 4-alkenyl substituted dibenzothiophenes. The members of this general class either are employed as homopolymers or are copolymerized with each other and/or N-alkenylcarbazole, 2-alkenyldibenzofuran, and 4-...