Telomerisation des ethers vinyliques et leur cotelomerisation avec les monomeres fluores

Boutevin, Bernard; Cersosimo, F.; Youssef, B.; Kappler, Patrick

doi:10.1016/s0022-1139(00)80354-1

Cited by 22 publications

(18 citation statements)

References 6 publications

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“…[13] Vinylidene fluoride was also telomerized with perfluoroalkyl iodides by thermal and redox processes. [14] The main problem in the solution polymerization of this type of monomer is their low solubility in usual hydrocarbonated solvents.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of cotelomerization of 3-(trimethoxysilyl)propyl methacrylate and perfluorodecylacrylate

Pardal

Lapinte

Robin

2009

European Polymer Journal

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Section: Introductionmentioning

confidence: 99%

Kinetics of cotelomerization of 3-(trimethoxysilyl)propyl methacrylate and perfluorodecylacrylate

Pardal

Lapinte

Robin

2009

European Polymer Journal

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“…This may arise from the high pressure generated in the vessel and a similar observation was noted on the radical copolymerization of α‐trifluoromethacrylic acid (MAF) with VDF for which the gaseous VDF induced a high pressure and hence could produce copolymers with a high amount of MAF29 considering that MAF does not homopolymerize. Except in the case of the radical copolymerization of CTFE with vinyl ethers, which leads to alternating copolymers,2, 3, 18–20 such a tendency is similar to those of other radical copolymerizations of CTFE with different comonomers. In fact, the data allow a certain degree of confidence because of two main parameters: (i) the experimental errors and (ii) the resolution of the 19 F NMR spectra regarding the values of the integrals of the characteristic signals.…”

Section: Resultsmentioning

confidence: 52%

“…In addition, the absences of complex systems centered at 5.2 and 5.8 ppm assigned to CF 2 CFCl H and CFClCF 2 H , respectively, is good evidence of the absence of any transfer (which may arise from the initiator, the solvent, the monomer or from the copolymer). In the case of the telomers of CTFE with mercaptans18, 19 that transfer was clearly identified by complex systems in these chemical shifts above. The 1 H NMR spectra also exhibit various signals in the 0.5–1.4 ppm range coming from the initiator.…”

Section: Resultsmentioning

confidence: 85%

“…The interesting end use properties of ECTFE copolymer made this material the favored choice for industry. Previous investigations carried out in our laboratory concerned the radical copolymerization of CTFE with vinyl ethers to accurately analyze the mechanism of formation of these copolymers 18–20. Indeed, they may result either from the homopolymerization of the charge transfer complex (CTC)21, 22 or from the alternating copolymerization of free monomers 23.…”

Section: Introductionmentioning

confidence: 99%

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Opening up the JCN toolbox

Saper¹

2009

J of Comparative Neurology

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For more than a decade, the Journal of Comparative Neurology has had a firm policy that we did not publish "methods" papers. The point of this policy was that we wanted our research articles to focus on new findings that enlighten us about aspects of the structure, function, and development of neural systems. We did not want to become a repository for papers that simply championed a new method but did not otherwise advance the field in a scientific sense.Yet, over the years, we were presented periodically with papers that provided important methodological advances, which we thought deserved broad attention. In most cases, we were able to persuade the authors to apply the advance to a scientific problem, to produce new data that would justify publishing the paper in JCN. This process, however, always felt awkward, and the resulting papers often were more notable for the methodological advance than the scientific advances.At our Editorial Board meeting last Fall, we therefore agreed that JCN would change its policy on publishing papers that focus on methodology. We still do not want to publish papers that simply describe a method, but we do want to bring forward a new category of papers that we hope will change the ways in which we do our work in a more broad generic sense, the JCN Toolbox.The hallmark of a Toolbox paper is that it should review critically an area of neuroscience methodology, potentially providing additional new methods or improvements but always putting them into perspective in ways that we hope will allow our readers to challenge, and perhaps change and improve, their own work. The first paper published under this new policy appeared in JCN in January of this year (Lavanex From this point forward, we will denote Toolbox papers with that designation, so that they are easier to identify. The paper by van den Pol and colleagues in the current issue is the first to carry the Toolbox label. This study reviews the use of viral vectors for introducing new genes into the brain and demonstrates a novel method for rapidly introducing new genes into neurons and permitting electrophysiological observations on transfected cells. We hope that this method, and variations that will be stimulated by this paper, will have broad application. We have other papers in the Toolbox series in the works and hope that we can stimulate our colleagues to contribute their best ideas for improving the ways in which we do our science through this category of publication. The groundbreaking series of papers that can result would surely become "must-read" material for neuroscientists and attract new readers to JCN, furthering our mission to publish the most exciting research in systems neuroscience.

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“…Furthermore, vinyl ethers do not homopolymerize by radical polymerization 37,38. The poly(CTFE‐ alt ‐VE) copolymers39–57 exhibit interesting properties arising from the 50 mol % of fluorinated units3,4 (thermostability, film‐forming, hydrophobicity, oleophobicity, chemical inertness, mechanical properties, and electrochemical stability) and the other 50 mol % of the vinyl ether brings the complementary properties (solubility, crosslinking, hydrophilicity, softness, adhesion to metal, and affinity with the lithium anions) 31,35,36,49,50,57. Thus, these are copolymers endowed with good thermal and chemical stability and with excellent mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Organizations join forces to confront global cancer crisis

Printz¹

2011

Cancer

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The synthesis and characterization of novel poly(CTFE‐g‐oligoEO) graft copolymers [chlorotrifluoroethylene (CTFE) and ethylene oxide (EO)] are presented. First, vinyl ether monomers bearing oligo(EO) were prepared by transetherification of ω‐hydroxyoligo(EO) with ethyl vinyl ether catalyzed by a palladium complex in 70–84% yields. Two vinyl ethers of different molecular weights (three and 10 EO units) were thus obtained. Then, radical copolymerization of the above vinyl ethers with CTFE led to alternating poly(CTFE‐alt‐VE) copolymers that bore oligo(OE) side chains in satisfactory yields (65%). These original poly(CTFE‐g‐oligoEO) graft copolymers were characterized by 1H, 19F, and 13C NMR spectroscopy. Their molecular weights reached 19,000 g mol−1, and their thermal properties were investigated while their glass transition temperatures ranged between −42 and −36 °C. Their thermogravimetric analyses under air showed decomposition temperatures of 270 °C with 10% weight loss (Td,10%). These novel copolymers are of potential interest as polymer electrolytes in lithium ion batteries, showing room temperature conductivities ranging from 4.49 × 10−7 to 1.45 × 10−6 S cm−1 for unplasticized material. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013

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Telomerisation des ethers vinyliques et leur cotelomerisation avec les monomeres fluores

Cited by 22 publications

References 6 publications

Kinetics of cotelomerization of 3-(trimethoxysilyl)propyl methacrylate and perfluorodecylacrylate

Kinetics of cotelomerization of 3-(trimethoxysilyl)propyl methacrylate and perfluorodecylacrylate

Opening up the JCN toolbox

Organizations join forces to confront global cancer crisis

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