The synthesis of poly(3,3″- and 3′,4′-dialkyl-2,2′:5′,2″-terthiophene)s possessing a full ordered regiochemistry of bonding and substitution, as well as a conjugated chain with the minimum possible amount of steric interactions between the substituents, is described. The synthesis was achieved through the simplest chemical method, namely the oxidative polymerization reaction based on FeCl3 as oxidant. The structural regularities of the polymers have been confirmed by Fourier transform infra-red (FT i.r.) and 1H nuclear magnetic resonance (n.m.r.) spectroscopy. Experimental conditions of special interest for improving the yields and molecular weights of the neutral soluble polymers are discussed.
Andreani F., Salatelli E., Lanzi M. (1996). Novel poly(3,3″ - and 3′,4′ -dialkyl- 2,2′:5′,2″-terthiophene)s by chemical oxidative synthesis: Evidence for a new step towards the optimization of this process. POLYMER, 37(4), 661-665 [10.1016/0032-3861(96)83153-3].
Novel poly(3,3″ - and 3′,4′ -dialkyl- 2,2′:5′,2″-terthiophene)s by chemical oxidative synthesis: Evidence for a new step towards the optimization of this process
Salatelli E.;Lanzi M.
1996
Abstract
The synthesis of poly(3,3″- and 3′,4′-dialkyl-2,2′:5′,2″-terthiophene)s possessing a full ordered regiochemistry of bonding and substitution, as well as a conjugated chain with the minimum possible amount of steric interactions between the substituents, is described. The synthesis was achieved through the simplest chemical method, namely the oxidative polymerization reaction based on FeCl3 as oxidant. The structural regularities of the polymers have been confirmed by Fourier transform infra-red (FT i.r.) and 1H nuclear magnetic resonance (n.m.r.) spectroscopy. Experimental conditions of special interest for improving the yields and molecular weights of the neutral soluble polymers are discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
