The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2009
Filed:
Jul. 18, 2007
Dirk Vanderzande, Hasselt, BE;
Laurence Lutsen, Coudekerque-Branche, FR;
Anja Henckens, Neerpelt, BE;
Kristof Colladet, Hasselt, BE;
Dirk Vanderzande, Hasselt, BE;
Laurence Lutsen, Coudekerque-Branche, FR;
Anja Henckens, Neerpelt, BE;
Kristof Colladet, Hasselt, BE;
Interuniversitair Microelektronica Centrum (IMEC), Leuven, BE;
Limburgs Universitair Centrum, Diepenbeek, BE;
Abstract
A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).