Study of vinylidene fluoride (VF2) telomerization and cotelomerization. Part II. VF2 and chlorotrifluoroethylene (CTFE) cotelomerization with 2-hydroxyethylmercaptan by radical initiation

Boutevin, Bernard; Furet, Y.; Hervaud, Yves; Rigal, Gérard

doi:10.1016/0022-1139(95)03258-f

Cited by 12 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected, the head‐to‐tail VDF units (i.e., produced from normal VDF propagation) of the VDF block are represented by a group of signals in the −91 to −95 ppm range, while the signals centered at −113 and −116 ppm are assigned to the reversed VDF units (i.e., head‐to‐head VDF chaining). These attributions are in good agreement with those already described by various authors for low40 or high molecular weight PVDF,41–48 or for telomers of VDF with perfluoroalkyl iodides,9,13,35,36 α , ω ‐diiodoperfluoroalkanes,37 methanol,2,3 polyhalogenomethanes9–14 or diethyl hydrogen phosphonate 7,8…”

Section: Resultssupporting

confidence: 91%

“…The telomerization of vinylidene fluoride (VDF) (or 1,1‐difluoroethylene) has been carried out by many authors and was recently reviewed 1. Various transfer agents have been utilized: hydroxylated,2,3 sulfurated,4–6 phosphorated7,8 and polyhalogenated 9–14. Among these latter telogens, the brominated ones do not have the same fate as the iodinated ones.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and copolymerization of vinylidene fluoride (VDF) with Trifluorovinyl Monomers, 11

Améduri¹,

Boutevin²,

Kostov³

2002

Macromol. Chem. Phys.

Self Cite

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Synthesis and copolymerization of vinylidene fluoride (VDF) with Trifluorovinyl Monomers, 11

Améduri¹,

Boutevin²,

Kostov³

2002

Macromol. Chem. Phys.

Self Cite

View full text Add to dashboard Cite

“…This is evidenced by the absence of doublet of multiplets (Fig. 6) assigned to the  CFHCl end‐group in A at 6.5 ppm and  CFClCF 2 H centered at 6.5–7 ppm38, 39 and demonstrates that A and C were not formed.…”

Section: Resultsmentioning

confidence: 97%

Unexpected alternating radical copolymerization of chlorotrifluoroethylene with 3‐isopropenyl‐α,α′‐dimethylbenzyl isocyanate

Kyulavska¹,

Kostov²,

Améduri³

et al. 2010

J. Polym. Sci. A Polym. Chem.

View full text Add to dashboard Cite

The radical solution copolymerization of hexafluoropropylene, chlorotrifluoroethylene (CTFE), vinylidene fluoride, and tert-butyl-a-trifluoromethylacrylate with different monomers bearing isocyanato groups such as allyl isocyanate, 3-isopropenyl-a,a 0 -dimethylbenzyl isocyanate (m-TMI), and 2isocyanatoethyl methacrylate, initiated by 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane were studied. Several of these radical copolymerizations were not successful in contrast to that of CTFE with m-TMI, although m-TMI monomer does not homopolymerize under radical initiation. The resulting poly(CTFE-com-TMI) copolymers were characterized by 1 H and 19 F nuclear magnetic resonance and Fourier transform infrared spectroscopy and their compositions assessed by elemental analysis. The reactivity ratios of both comonomers were determined by linearization methods of Fineman-Ross, Kelen-Tü dö s for low conversions of monomers, and by the extended Kelen-Tü dö s method for high monomer conversions. The average values of the monomer reactivity ratios, r CTFE and r m-TMI , were 0.076 and 0.034 at 130 C, respectively, depending on these monomer

show abstract

Telomerization of vinylidene fluoride with alkyl (or aryl) trifluoromethanethiosulfonates

Améduri

Billard

Langlois

2002

J. Polym. Sci. A Polym. Chem.

View full text Add to dashboard Cite

The photochemical‐induced telomerization of vinylidene fluoride (VDF) with cyclohexyl (or phenyl) trifluoromethanethiosulfonate (CF3SO2SR), leading to CF3(VDF)nSR telomers, where R stands for cyclohexyl or phenyl, is presented. These sulfurated transfer agents were synthesized by the reaction between sodium triflinate (CF3SO2Na) and disulfide in the presence of bromine. 19F NMR spectroscopy enabled an assessment of the average degrees of telomerization (DPn) of these telomers with a neat CF3 end group as the label. These DPn values increased for higher [VDF]0/[CF3SO2SR]0 initial molar ratios. Interestingly, the normal/reversed ratio of VDF units in these telomers was low. Finally, the cotelomerization of VDF and hexafluoropropylene with these transfer agents was successfully achieved, leading to original ω‐CF3 fluoroelastomers, the thermal properties of which were investigated. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 4538–4549, 2002

show abstract

Study of vinylidene fluoride (VF2) telomerization and cotelomerization. Part II. VF2 and chlorotrifluoroethylene (CTFE) cotelomerization with 2-hydroxyethylmercaptan by radical initiation

Cited by 12 publications

References 9 publications

Synthesis and copolymerization of vinylidene fluoride (VDF) with Trifluorovinyl Monomers, 11

Synthesis and copolymerization of vinylidene fluoride (VDF) with Trifluorovinyl Monomers, 11

Unexpected alternating radical copolymerization of chlorotrifluoroethylene with 3‐isopropenyl‐α,α′‐dimethylbenzyl isocyanate

Telomerization of vinylidene fluoride with alkyl (or aryl) trifluoromethanethiosulfonates

Contact Info

Product

Resources

About