Stereocomplexed materials based on poly(3-hexylthiophene)-b-poly(lactide) block copolymers : synthesis by organic catalysis, thermal properties and microscopic morphology
[en] A new approach to control the supramolecular organization of conjugated polymers is proposed, based on stereocomplex formation. It is illustrated by mixing polymer solutions of block copolymers, i.e., poly(3-hexylthiophene)-b-poly(l-lactide) and poly(3-hexylthiophene)-b-poly(d-lactide). The block copolymers were successfully synthesized via a three-step procedure including the use of metal-free organic catalysts in the ring-opening polymerization of l- and d-lactide. The thermal properties and microscopic morphology of sterecomplexed diblock copolymers show that the stereocomplexation of the polylactide blocks is able to prevent the crystallization of the regioregular poly(3-hexylthiophene) block into long-range ordered parallel fibrillar structures. Stereocomplexation is also observed when mixing poly(d-lactide) homopolymer and poly(3-hexylthiophene)-b-poly(l-lactide) block copolymer.
Disciplines :
Chemistry
Author, co-author :
Grancharov, Georgy
Coulembier, Olivier ; Université de Mons > Faculté des Sciences > Matériaux Polymères et Composites
Surin, Mathieu ; Université de Mons > Faculté des Sciences > Service de Chimie des matériaux nouveaux
Lazzaroni, Roberto ; Université de Mons > Faculté des Sciences > Service de Chimie des matériaux nouveaux
Dubois, Philippe ; Université de Mons > Faculté des Sciences > Matériaux Polymères et Composites
Language :
English
Title :
Stereocomplexed materials based on poly(3-hexylthiophene)-b-poly(lactide) block copolymers : synthesis by organic catalysis, thermal properties and microscopic morphology
Publication date :
15 October 2010
Journal title :
Macromolecules
ISSN :
0024-9297
eISSN :
1520-5835
Publisher :
American Chemical Society (ACS), United States - District of Columbia
Volume :
43
Issue :
21
Pages :
8957-8964
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S816 - Matériaux Polymères et Composites S817 - Chimie des matériaux nouveaux
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
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