Poly(3-butyl-co-3,4-dibutylthiophene) copolymers: A new series of conjugated materials with a different energy-gap

Marinella Catellani*, Silvia Luzzati, Raniero Mendichi, Alberto Giacometti Schieroni, Paul C. Stein

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Resumé

We have prepared a series of soluble polyalkylthiophenes in which it is possible to modulate continuously the electronic properties such as the conjugation length and the energy-gap. The copolymerization of 3-butylthiophene and 3,4-dibutylthiophene units in well defined ratios leads to materials with optical properties depending on the composition of the chain. Using size exclusion chromatography (s.e.c.) and n.m.r. techniques we have found that the copolymer average composition is in good agreement with the composition of the co-monomer feeds at the polymerization start. The optical characterization was performed with u.v.-visible absorption and Raman spectroscopy and this allowed us to monitor the conjugation length properties of the copolymers.

OriginalsprogEngelsk
TidsskriftPolymer
Vol/bind37
Udgave nummer7
Sider (fra-til)1059-1064
Antal sider6
ISSN0032-3861
DOI
StatusUdgivet - 1. jan. 1996

Fingeraftryk

Energy gap
Copolymers
Chemical analysis
Size exclusion chromatography
Absorption spectroscopy
Electronic properties
Copolymerization
Raman spectroscopy
Optical properties
Monomers
Polymerization
3,4-dibutylthiophene

Citer dette

Catellani, Marinella ; Luzzati, Silvia ; Mendichi, Raniero ; Schieroni, Alberto Giacometti ; Stein, Paul C. / Poly(3-butyl-co-3,4-dibutylthiophene) copolymers : A new series of conjugated materials with a different energy-gap. I: Polymer. 1996 ; Bind 37, Nr. 7. s. 1059-1064.
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Poly(3-butyl-co-3,4-dibutylthiophene) copolymers : A new series of conjugated materials with a different energy-gap. / Catellani, Marinella; Luzzati, Silvia; Mendichi, Raniero; Schieroni, Alberto Giacometti; Stein, Paul C.

I: Polymer, Bind 37, Nr. 7, 01.01.1996, s. 1059-1064.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Poly(3-butyl-co-3,4-dibutylthiophene) copolymers

T2 - A new series of conjugated materials with a different energy-gap

AU - Catellani, Marinella

AU - Luzzati, Silvia

AU - Mendichi, Raniero

AU - Schieroni, Alberto Giacometti

AU - Stein, Paul C.

PY - 1996/1/1

Y1 - 1996/1/1

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AB - We have prepared a series of soluble polyalkylthiophenes in which it is possible to modulate continuously the electronic properties such as the conjugation length and the energy-gap. The copolymerization of 3-butylthiophene and 3,4-dibutylthiophene units in well defined ratios leads to materials with optical properties depending on the composition of the chain. Using size exclusion chromatography (s.e.c.) and n.m.r. techniques we have found that the copolymer average composition is in good agreement with the composition of the co-monomer feeds at the polymerization start. The optical characterization was performed with u.v.-visible absorption and Raman spectroscopy and this allowed us to monitor the conjugation length properties of the copolymers.

KW - Copolymers

KW - Polyalkylthiophenes

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JF - Polymer

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