Regioregular polymers poly[4,4'-bis(butylsulfanyl)-2,2'-bithiophene] (P1)and poly[4,4'-bis(octylsulfanyl)-2,2'-bithiophene] (P2) were prepared from 4,4'-bis(butylsulfanyl)- and 4,4'-bis(octylsulfanyl)-2,2'-bithiophene, by oxidative polymerization with FeCl3, and characterized by 1-H, and 13-C NMR, FT-IR, ad UV-vis spectroscopies, atomic force microscopy (AFM) , electrical conductivity, and cyclic voltammetry measurements. They exhibit weight-average molecular weights of 8 and 70 kDa, respectively, and are both readily soluble in CHCl3, CH2Cl2, CS2, toluene, and THF. P1 has a lamellar structure, and P2 is a flexible and compact film that can be easily processed and manipulated. In the neutral state, they show UV-vis absorption maxima at about 470 nm in CHCL3 solution and exhibit marked solvatochromism and thermochromism. Furthermore, thay can be cast from orange-red solution to form a violet film. The p-doping potentials have been determined, and the possibility of electrogenerating corresponding polymers has been checked. First comparative characterizations of the electrogenerated polymers bave been carried out.

Polymerization and Characterization of 4,4’-bis(alkylsulfanyl)-2,2’-bithiophenes / Iarossi, Dario; Mucci, Adele; Schenetti, Luisa; Seeber, Renato; F., Goldoni; Affronte, Marco; Nava, Filippo. - In: MACROMOLECULES. - ISSN 0024-9297. - STAMPA. - 32(1999), pp. 1390-1397.

Polymerization and Characterization of 4,4’-bis(alkylsulfanyl)-2,2’-bithiophenes

IAROSSI, Dario;MUCCI, Adele;SCHENETTI, Luisa;SEEBER, Renato;AFFRONTE, Marco;NAVA, Filippo
1999

Abstract

Regioregular polymers poly[4,4'-bis(butylsulfanyl)-2,2'-bithiophene] (P1)and poly[4,4'-bis(octylsulfanyl)-2,2'-bithiophene] (P2) were prepared from 4,4'-bis(butylsulfanyl)- and 4,4'-bis(octylsulfanyl)-2,2'-bithiophene, by oxidative polymerization with FeCl3, and characterized by 1-H, and 13-C NMR, FT-IR, ad UV-vis spectroscopies, atomic force microscopy (AFM) , electrical conductivity, and cyclic voltammetry measurements. They exhibit weight-average molecular weights of 8 and 70 kDa, respectively, and are both readily soluble in CHCl3, CH2Cl2, CS2, toluene, and THF. P1 has a lamellar structure, and P2 is a flexible and compact film that can be easily processed and manipulated. In the neutral state, they show UV-vis absorption maxima at about 470 nm in CHCL3 solution and exhibit marked solvatochromism and thermochromism. Furthermore, thay can be cast from orange-red solution to form a violet film. The p-doping potentials have been determined, and the possibility of electrogenerating corresponding polymers has been checked. First comparative characterizations of the electrogenerated polymers bave been carried out.
32
1390
1397
Polymerization and Characterization of 4,4’-bis(alkylsulfanyl)-2,2’-bithiophenes / Iarossi, Dario; Mucci, Adele; Schenetti, Luisa; Seeber, Renato; F., Goldoni; Affronte, Marco; Nava, Filippo. - In: MACROMOLECULES. - ISSN 0024-9297. - STAMPA. - 32(1999), pp. 1390-1397.
Iarossi, Dario; Mucci, Adele; Schenetti, Luisa; Seeber, Renato; F., Goldoni; Affronte, Marco; Nava, Filippo
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/458520
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