Article (Scientific journals)
Novel High Molecular Weight Aromatic Fluorinated Polymers from One-Pot, Metal-Free Step Polymerizations
Olvera, Lilian I.; Guzmán-Gutiérrez, Maria T.; Zolotukhin, M. G. et al.
2013In Macromolecules, 46 (18), p. 7245-7256
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Abstract :
[en] A novel series of linear, high-molecular-weight polymers and copolymers was synthesized by one-pot, metal-free superacid-catalyzed reaction of trifluoromethylalkyl (1a-1c) and trifluoromethylaryl (1d-1h) ketones with the linear, nonactivated, multiring aromatic hydrocarbons biphenyl (A), p-terphenyl (B), and p-quaterphenyl (C). The polymerizations were performed at room temperature in the Brønsted superacid trifluoromethanesulfonic acid (CF3SO3H, TFSA) and in a mixture of TFSA with methylene chloride. Polymerizations of trifluoromethyl ketones (1c, 1f-1h) bearing functional groups gave polymers with reactive lateral groups such as bromomethyl, 4-(N,N-dimethylamino)phenyl-, 3-sulfophenyl-, and 2,3,4,5,6-pentafluorophenyl. The polymers obtained were soluble in most common organic solvents and flexible transparent films could be cast from the solutions. 1H and 13C NMR analyses of the polymers synthesized revealed their linear structure with para-substitution in the phenylene fragments of the main chain. The molecular weights (Mw) of the polymers based on trifluoromethylalkyl ketones and aromatic are very high and reach 1000000, while the molecular weights of the polymers based on trifluoromethylaryl ketones and aromatic ranged from 30 000 to 300 000 g/mol. The polydispersity of the polymers is generally less than 2. The polymers also possess high thermostability. Mechanistic aspects of polymerization mechanism have been discussed, and a new approach for monomer design has been proposed.
Research center :
CIRMAP - Centre d'Innovation et de Recherche en Matériaux Polymères
Disciplines :
Chemistry
Author, co-author :
Olvera, Lilian I.
Guzmán-Gutiérrez, Maria T.
Zolotukhin, M. G.
Fomine, Sergei
Cárdenas, Jorge
Ruiz-Trevino, Fransico A.
Villers, Didier ;  Université de Mons > Faculté des Sciences > Laboratoire Interfaces et Fluides Complexes
Ezquerra, Tiberio A.
Prokhorov, Evgen
Language :
English
Title :
Novel High Molecular Weight Aromatic Fluorinated Polymers from One-Pot, Metal-Free Step Polymerizations
Publication date :
12 September 2013
Journal title :
Macromolecules
ISSN :
0024-9297
Publisher :
American Chemical Society (ACS), United States - District of Columbia
Volume :
46
Issue :
18
Pages :
7245-7256
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S885 - Laboratoire Interfaces et Fluides complexes
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
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