Kinetics of the iodine transfer polymerization of vinylidene fluoride

Boyer, Cyrille, Valade, David, Lacroix-Desmazes, Patrick, Ameduri, Bruno and Boutevin, Bernard (2006) Kinetics of the iodine transfer polymerization of vinylidene fluoride. Journal of Polymer Science Part A: Polymer Chemistry, 44 19: 5763-5777. doi:10.1002/pola.21654


Author Boyer, Cyrille
Valade, David
Lacroix-Desmazes, Patrick
Ameduri, Bruno
Boutevin, Bernard
Title Kinetics of the iodine transfer polymerization of vinylidene fluoride
Journal name Journal of Polymer Science Part A: Polymer Chemistry   Check publisher's open access policy
ISSN 0887-624X
1099-0518
Publication date 2006-10-01
Sub-type Article (original research)
DOI 10.1002/pola.21654
Volume 44
Issue 19
Start page 5763
End page 5777
Total pages 15
Place of publication Hoboken, NJ, United States
Publisher John Wiley & Sons
Language eng
Formatted abstract
The kinetics of the iodine transfer polymerization (ITP) of vinylidene fluoride (VDF) was achieved in the presence of three different chain-transfer agents (CTAs): 1-iodoperfluorohexane (C6F13I), 1-iodo-2H,2H-perfluorooctane (C6F13CH2CF2I), and 1,1,2,2-tetrafluoro-3-iodopropane (HCF2CF2CH2I). ITPs of VDF carried out in the presence of C6F13I and C6F13CH2CF2I showed the following: (1) a linear increase in DPn versus αVDF, which evidenced the controlled character of ITP, although the polydispersity indices were slightly high (ca 1.5), and (2) theoretical DPn values close to the targeted ones. In contrast, neither of these statements was observed for the ITP of VDF in the presence of HCF2CF2CH2I achieved under the same conditions, even if the synthesized oligomers could be reactivated. Although the CTr values of C6F13I and C6F13CH2CF2I were close (i.e., 7.7 at 75 °C), that of HCF2CF2CH2I was lower (0.3 at 75 °C). The percentages of [BOND]CF2I and [BOND]CH2I functionalities were also assessed, and in the course of the reaction, a reduction of [BOND]CF2I end groups was noted. Then, the mechanism of the ITP of VDF was proposed.
Keyword Degree of polymerization (DP)
Fluoropolymers
Living polymerization
Molecular weight distribution/molar mass distribution
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Wed, 09 Mar 2011, 13:48:15 EST