Kathleen M Feldman

US Patent:

20120178893, Jul 12, 2012

Filed:

Aug 23, 2011

Appl. No.:

13/215321

Inventors:

David C. Martin - Lincoln University PA, US
Kathleen E. Feldman - Wilmington DE, US

Assignee:

University of Delaware - Newark DE

International Classification:

C08G 75/06
C08G 77/28
C07F 7/18
C07D 495/04
C07H 15/26

US Classification:

528 30, 528380, 549 50, 536 181, 549 4

Abstract:

Substituted 3,4-propylenedioxythiophene monomers may be prepared by reacting 3-allyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine or 3,3-diallyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine with a thiol having a hydrocarbyl moiety optionally containing one or more heteroatom-containing functional groups under radical addition conditions under radical addition conditions. Such monomers may be used in homo- or copolymerization processes to obtain thiophene-type polymers containing substituents (which may bear functional groups such as silane, thiol, hydroxyl, carboxylic acid, amine, sugar groups, polyoxyalkylene, and the like). Crosslinkers useful for introducing crosslinking into thiophene-type polymers may be prepared by reacting 3-allyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine with a compound having two or more thiol groups under radical addition conditions.