To overcome poor mech. stability and mech. properties of polyaniline, a conducting copolymer was prepd. by grafting polyaniline (Emeraldine Base) or sulfonated polyaniline (SPAN) chains to the backbone of carboxylated segmented polyurethane (PEUA). As evidenced by thermal (DSC) and dynamo-mech. (DMTA) characterization, the introduction of EB or SPAN in the matrix enhances the hard-soft phase segregation effect, because of the strong tendency of the conductive polymer chains to aggregate. The EB and SPAN chains grafted to the polyurethane backbone cause an increase of the Young's modulus and ...
New conducting thermoplastic elastomers. Part 2-Physical and chemical physical characterization / Carone, E.; D'Ilario, Lucio; Martinelli, Andrea. - In: JOURNAL OF APPLIED POLYMER SCIENCE. - ISSN 0021-8995. - STAMPA. - 86:(2002), pp. 1259-1264. [10.1002/app.11094]
New conducting thermoplastic elastomers. Part 2-Physical and chemical physical characterization
D'ILARIO, LUCIO;MARTINELLI, Andrea
2002
Abstract
To overcome poor mech. stability and mech. properties of polyaniline, a conducting copolymer was prepd. by grafting polyaniline (Emeraldine Base) or sulfonated polyaniline (SPAN) chains to the backbone of carboxylated segmented polyurethane (PEUA). As evidenced by thermal (DSC) and dynamo-mech. (DMTA) characterization, the introduction of EB or SPAN in the matrix enhances the hard-soft phase segregation effect, because of the strong tendency of the conductive polymer chains to aggregate. The EB and SPAN chains grafted to the polyurethane backbone cause an increase of the Young's modulus and ...I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
