Use of Iodocompounds in Radical Polymerization

David, Ghislain; Boyer, Cyrille; Tonnar, Jeff; Améduri, Bruno; Lacroix‐Desmazes, Patrick; Boutevin, Bernard

doi:10.1021/cr0509612

Cited by 468 publications

(475 citation statements)

References 198 publications

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“…As a result, the reaction may display a pseudoliving behavior. [12][13][14][15][16] As in any radical-based process, termination occurs through the coupling of VDF macroradicals (step e), as reported by Timmerman and Greyson. 20 However, to preserve living or controlled behavior, termination must be negligible compared with chain transfer.…”

Section: Mechanism Of Iodine Transfer Polymerizationmentioning

confidence: 77%

“…The radical telomerization of VDF with various chain transfer agents (CTAs) has been recently summarized. 11 Moreover, studies on the iodide transfer polymerization 12 of VDF in the presence of perfluoroalkyl iodides (R F I) [13][14][15][16] revealed that controlled polymerization could be achieved when R F I (CTA) possessed a CF 2 I end group.…”

Section: Introductionmentioning

confidence: 99%

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Vinylidene fluoride telomers for piezoelectric devices

Durand¹,

Améduri²,

Takashima³

et al. 2010

Polym J

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Original telomers based on vinylidene fluoride (VDF), C n F 2n+1 (VDF) m (CH 2 CH 2 ) p I, where n¼4 or 6, m¼5-23 and p¼0 or 1, were synthesized, and the piezoelectric properties of the materials were investigated. Low-molecular-weight polyvinylidene fluorides (PVDFs) were prepared in good yields by iodine transfer polymerization of VDF. The polymerization of VDF was conducted in the presence of 1-iodoperfluoroalkanes (C 4 F 9 I or C 6 F 13 I) and bis(4-tert-butylcyclohexyl) peroxydicarbonate, which were used as a chain transfer agent and initiator, respectively. The microstructures of VDF telomers were carefully characterized by 1 H and 19 F nuclear magnetic resonance (NMR) spectroscopy to assess the average molecular weights and the percentage of CH 2 CF 2 I functionality (that ranged from 47 to 86%). X-ray diffraction patterns of these telomers indicated that PVDFs with o7 VDF units displayed the a-form. Alternatively, telomers containing a higher amount of VDF possessed both a-and b-forms. Ethylene endcapping of C n F 2n+1 (VDF) m I was also successfully achieved in high yield, and the telomeric precursors were converted quantitatively. Moreover, three VDF telomers were vaporized into films, and the piezoelectric properties of the materials were assessed. The results revealed that C 6 F 13 (VDF) 23 I and C 4 F 9 (VDF) 21 I telomer films displayed piezoelectric responses (d 33 ¼268 pC N À1 ) and high remanent polarizations (Pr¼98.2 and 93.4 mC m À2 , respectively). In addition, C 4 F 9 (VDF) 21 C 2 H 4 I exhibited interesting ferroelectric properties (Pr¼89.9 mC m À2 ).

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Section: Mechanism Of Iodine Transfer Polymerizationmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Vinylidene fluoride telomers for piezoelectric devices

Durand¹,

Améduri²,

Takashima³

et al. 2010

Polym J

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“…Numerous recent studies have focused on complex polymer architectures with original solid state morphologies [30][31][32][33], PVA-based surfactants [34,35] or poly(vinyl ester)s with enhanced solubility in scCO 2 [3][4][5][6][7][8]. To date, iodine-transfer polymerization (ITP) [36], organoheteroatom-mediated polymerization (OMRP) [28,37], cobalt-mediated polymerization (CoMRP) [38] and reversible addition-fragmentation chain transfer (RAFT) polymerization [39] have been proven efficient in the radical polymerization of vinyl esters. However, ITP, OMRP and CoMRP suffer drawbacks of different kinds.…”

Section: Introductionmentioning

confidence: 99%

RAFT Polymerization of Vinyl Esters: Synthesis and Applications

et al. 2014

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This article is the first comprehensive review on the study and use of vinyl ester monomers in reversible addition fragmentation chain transfer (RAFT) polymerization. It covers all the synthetic aspects associated with the definition of precision polymers comprising poly(vinyl ester) building blocks, such as the choice of RAFT agent and reaction conditions in order to progress from simple to complex macromolecular architectures. Although vinyl acetate was by far the most studied monomer of the range, many vinyl esters have been considered in order to tune various polymer properties, in particular, solubility in supercritical carbon dioxide (scCO 2 ). A special emphasis is given to novel poly(vinyl alkylate)s with enhanced solubilities in scCO 2 , with applications as reactive stabilizers for dispersion polymerization and macromolecular surfactants for CO 2 media. Other miscellaneous uses of poly(vinyl ester)s synthesized by RAFT, for instance as a means to produce poly(vinyl alcohol) with controlled characteristics for use in the biomedical area, are also covered.

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“…A sufficiently large number of activation-deactivation cycles are required for low polydispersity [4][5][6][7]. Examples of the capping agent (X) include nitroxides, dithioesters, tellurides, and halogens [8][9][10][11][12][13][14][15]. Halogens are combined with transition metal catalysts [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Macromolecular Architectures Designed by Living Radical Polymerization with Organic Catalysts

et al. 2014

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Well-defined diblock and triblock copolymers, star polymers, and concentrated polymer brushes on solid surfaces were prepared using living radical polymerization with organic catalysts. Polymerizations of methyl methacrylate, butyl acrylate, and selected functional methacrylates were performed with a monofunctional initiator, a difunctional initiator, a trifunctional initiator, and a surface-immobilized initiator.

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Use of Iodocompounds in Radical Polymerization

Cited by 468 publications

References 198 publications

Vinylidene fluoride telomers for piezoelectric devices

Vinylidene fluoride telomers for piezoelectric devices

RAFT Polymerization of Vinyl Esters: Synthesis and Applications

Macromolecular Architectures Designed by Living Radical Polymerization with Organic Catalysts

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