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Chlorotrifluoroethylene and vinyl ether

Roualdes and co-workers have prepared phosphonated polymers by synthesizing fluorinated polymers via radical polymerization of fluorinated al-kenes such as chlorotrifluoroethylene and vinyl ethers such as 2-chloroethyl vinyl ether, followed by phosphonation via the Arbuzov reaction. The resulting polymers depicted in Scheme 13.3c had a phosphonic acid content ranging from 18 to 47 mol%. The level of conductivity was found to be in the range 0.02-20 mS cm, which was comparable with Nafion 115 at about 50 mS cm at 25 °C and 95% RH. [Pg.301]

PDD as well as other dioxoles have been copolymerized with monomers such as vinyl fluoride, vinylidene fluoride, tiifluoroediylene, perfluoroalkylethylenes, chlorotrifluoroethylene, hexafluoropropylene, and perfluorovinyl ethers, some of which contain functional groups. [Pg.27]

The major commercial fluoropolymers are made by homopolymerization of tetrafluoroethylene (TFE), chlorotrifluoroethylene (CTFE),vinyhdene fluoride (VF2), and vinyl fluoride (VF), or by co-polymerization of these monomers with hexafluoropropylene (HFP), perfluoro(propyl vinyl ether) (PPVE), per-fluoro(methyl vinyl ether) (PMVE), or ethylene. The polymers are formed by free-radical polymerization in water or fluorinated solvents. [Pg.331]

PDD readily copolymerizes with tetrafluoroethylene and other monomers containing fluorine, such as vinylidene fluoride (VDF), chlorotrifluoroethylene (CTFE), vinyl fluoride (VF), and propylvinyl ether (PVE) via free radical copolymerization, which can be carried out in either aqueous or nonaqueous media. It also forms an amorphous homopolymer with a Tg of 335°C (635°F) [2]. [Pg.151]

In this entry, fluoropolymer means a polymer that consists of partially or fully fluorinated olefinic monomers, such as vinylidene fluoride (CH2=CF2) and tetrafluor-oethylene (CF2=CF2). Commercial fluoropolymers include homopolymers and copolymers. Homopolymers contain 99wt.% or more one monomer and lwt.% or less of another monomer according to the convention by American Society for Testing Materials. Copolymers contain 1 wt.% or more of one or more comonomers. The major commercial fluoropolymers are based on tetrafluoroethylene, vinylidene fluoride, and to a lesser extent chlorotrifluoroethylene. Examples of comonomers include perfluoromethyl vinyl ether (PMVE), perfluoroethyl vinyl ether (PEVE), perfluoro-propyl vinyl ether (PPVE), hexafluoropropylene (HFP), chlorotrifluoroethylene (CTFE), and perfluorobutyl ethylene (PFBE). [Pg.1031]

Commercial fluoropolymers are based on tetrafluo-roethylene, vinylidene fluoride, and, to a lesser extent, chlorotrifluoroethylene. Examples of comonomers include perfluoromethyl vinyl ether, perfluoroethyl... [Pg.1040]

There are a number of other polymers in this family including polychlorotrifluoroethylene (PCTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride, ethylene chlorotrifluoroethylene (ECTFE), tetrafluoroethylene/hexafluoropropylene/vi-nylidene fluoride terpolymers, and chlorotrifluo-roethylene/vinyl ether copolymers. [Pg.4]

Other monomers that copolymerize with alkyl vinyl ethers are vinyl ketones [47], acrolein diacetate [48], acrylamide [49], alkoxy 1,3-butadienes [50], butadiene [51], chloroprene [52], chlorotrifluoroethylene [53], tri-and tetrafluoroethylene [54], cyclopentadiene [55], dimethylaminoethyl acrylate [56], fluoroacrylates [57], fluoroacrylamides [58], A-vinyl car-bazole [59,60], triallyl cyanurate [59,60], vinyl chloroacetate [61,62], N-vinyl lactams [63], A-vinyl succinimide [63], vinylidene cyanide [64, 65], and others. Copolymerization is especially suitable for monomers having electron-withdrawing groups. Solution, emulsion, and suspension techniques can be used. However, in aqueous systems the pH should be buffered at about pH 8 or above to prevent hydrolysis of the vinyl ether to acetaldehyde. Charge-transfer complexes have been suggested to form between vinyl ethers and maleic anhydride, and these participate in the copolymerization [66]. Examples of the free-radical polymerization of selected vinyl ethers are shown in Table IV. [Pg.247]

Figure 3 shows the almost perfect alternating behavior in the copolymerization of various vinyl ethers and chlorotrifluoroethylene or tetrafluoroethylene. [Pg.70]

Valade, D., Boschet, F., Amdduri, B. (2009) Synthesis and modification of alternating copolymers based on vinyl ethers, chlorotrifluoroethylene, and hexafiuoropropylene. Macromolecules, 42, 7689-7700. [Pg.351]

Pubhcations on curing polymers with TAIC include TEE—propylene copolymer (135), TEE—propylene—perfluoroaHyl ether (136), ethylene—chlorotrifluoroethylene copolymers (137), polyethylene (138), ethylene—vinyl acetate copolymers (139), polybutadienes (140), PVC (141), polyamide (142), polyester (143), poly(ethylene terephthalate) (144), sdoxane elastomers (145), maleimide polymers (146), and polyimide esters (147). [Pg.88]

The commercially important fluorocarbon polymers are poly(tetrafluoroethylene) (PTFE), poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP), poly[tetrafluoroethylene-co-(perfluoroaJkylvinyl ether)] (PFA), and amorphous fluoropolymer (AF), typically copolymers of tetrafluoro-ethylene and fluorinated dioxole. The second group of fluoropolymers includes modified poly(tetrafluoroethylene-co-ethylene) (ETFE), poly(vinylidene fluoride) (PVDF) (sometimes referred to as PVF2), and copolymers of vinylidene fluoride, poly(chlorotrifluoroethylene) (PCTFE), poly(chlorotrifluorethylene-co-ethylene) (E/CTFE) and poly(vinyl fluoride) PVF. [Pg.735]


See other pages where Chlorotrifluoroethylene and vinyl ether is mentioned: [Pg.12]    [Pg.156]    [Pg.162]    [Pg.374]    [Pg.12]    [Pg.156]    [Pg.162]    [Pg.374]    [Pg.163]    [Pg.185]    [Pg.309]    [Pg.227]    [Pg.92]    [Pg.164]    [Pg.1040]    [Pg.210]    [Pg.236]    [Pg.309]    [Pg.131]    [Pg.829]    [Pg.13]   


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Chlorotrifluoroethylene

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