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Perfluoroether

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The introduction of an ether function to a perfluoro-polymer chain also provides thermoplastic properties to the polymer, making thermal forming possible. This is a great technological advantage for producing a large variety of shapes (e.g., beakers, funnels, flasks for laboratory uses, etc...) and
250: 137:(PTFE). Methylfluoroalkoxy (MFA) is a polytetrafluoroethylene perfluoro methylvinylether prepared with a different ratio of PTFE and MVE monomers to that used for PFA. In these materials, the ether groups are pendant from the polymer backbone. 99: 212:
Günter Siegemund; Werner Schwertfeger; Andrew Feiring; Bruce Smart; Fred Behr; Herward Vogel; Blaine McKusick (2002). "Fluorine Compounds, Organic".
30:. In general these compounds are structurally analogous to the related hydrocarbon ethers, except for the distinctive properties of 300: 330: 281: 229: 248:, John Ferguson Harris, Jr. & Donald Irwin McCane, "Fluorocarbon ethers", issued 1965-04-27 106:
are two of the simplest cyclic perfluoroethers. These are precursors of perfluoro(methyl vinyl ether) (CF
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of highly chemically-resistant tubing. It also confers on the polymer a translucent appearance.
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Michael G. Costello; Richard M. Flynn; John G. Owens (2001). "Fluoroethers and Fluoroamines".
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is a grease generated by the polymerization of hexafluoropropylene oxide. Its
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At high temperatures or in a fire, perfluoroethers decompose and may release
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More interesting and more useful are the cyclic ethers, especially, the
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is a fluoroether with strongly acidic sulfonic acid substituents
172: 140: 65: 50: 24: 195:. Any residue must be handled using protective equipment. 61: 45: 91:, such perfluoro(2-ethoxyethane)sulfonic acid (PFEESA). 169:. The ether groups are integral to the polymer chain. 57:
tubing is commonly used to handle aggressive chemicals
114:) and perfluoro(propyl vinyl ether), and are used as 307: 266:Kirk-Othmer Encyclopedia of Chemical Technology 214:Ullmann's Encyclopedia of Industrial Chemistry 274:10.1002/0471238961.0612211506122514.a01.pub2 121: 175:is a perfluorinated polyether with pendant 60: 49: 46:Low molecular weight fluorinated ethers 308: 257: 13: 14: 342: 294: 75:perfluoroethers are analogues of 205: 186: 1: 198: 7: 133:with properties similar to 10: 347: 118:with tetrafluoroethylene. 122:Polymeric perfluoroethers 104:hexafluoropropylene oxide 100:Tetrafluoroethylene oxide 331:Perfluorinated compounds 268:. Weinstein: Wiley-VCH. 222:10.1002/14356007.a11_349 216:. Weinheim: Wiley-VCH. 135:polytetrafluoroethylene 127:Perfluoroalkoxy alkanes 23:containing one or more 21:organofluorine compound 246:US patent 3180895A 69: 58: 64: 53: 70: 59: 193:hydrogen fluoride 338: 288: 287: 261: 255: 254: 253: 249: 242: 236: 235: 209: 145:chemical formula 28:functional group 346: 345: 341: 340: 339: 337: 336: 335: 326:Organofluorides 306: 305: 297: 292: 291: 284: 262: 258: 251: 243: 239: 232: 210: 206: 201: 189: 182: 168: 164: 160: 154: 150: 124: 113: 109: 90: 86: 82: 48: 19:are a class of 17:Perfluoroethers 12: 11: 5: 344: 334: 333: 328: 323: 321:Thermoplastics 318: 316:Fluoropolymers 304: 303: 301:MFA Properties 296: 295:External links 293: 290: 289: 282: 256: 237: 230: 203: 202: 200: 197: 188: 185: 180: 166: 162: 156: 152: 148: 131:fluoropolymers 123: 120: 111: 107: 88: 84: 80: 47: 44: 9: 6: 4: 3: 2: 343: 332: 329: 327: 324: 322: 319: 317: 314: 313: 311: 302: 299: 298: 285: 283:0-471-23896-1 279: 275: 271: 267: 260: 247: 241: 233: 231:3-527-30673-0 227: 223: 219: 215: 208: 204: 196: 194: 184: 178: 177:sulfonic acid 174: 170: 159: 146: 142: 138: 136: 132: 128: 119: 117: 105: 101: 97: 92: 78: 74: 67: 63: 56: 52: 43: 41: 35: 33: 32:fluorocarbons 29: 26: 22: 18: 265: 259: 240: 213: 207: 190: 171: 157: 139: 125: 93: 77:diethylether 71: 36: 16: 15: 187:Precautions 179:groups (RSO 147:is F−(CF(CF 129:(PFAs) are 310:Categories 199:References 116:comonomers 79:, e.g. O(C 40:extrusion 96:epoxides 73:Acyclic 38:allows 280:  252:  228:  173:Nafion 141:Krytox 110:=CFOCF 66:Nafion 25:ether 278:ISBN 226:ISBN 183:H). 151:)−CF 102:and 270:doi 218:doi 161:−CF 155:−O) 55:PFA 312:: 276:. 224:. 165:CF 98:. 34:. 286:. 272:: 234:. 220:: 181:3 167:3 163:2 158:n 153:2 149:3 112:3 108:2 89:2 87:) 85:5 83:F 81:2

Index

organofluorine compound
ether
functional group
fluorocarbons
extrusion

PFA

Nafion
Acyclic
diethylether
epoxides
Tetrafluoroethylene oxide
hexafluoropropylene oxide
comonomers
Perfluoroalkoxy alkanes
fluoropolymers
polytetrafluoroethylene
Krytox
chemical formula
Nafion
sulfonic acid
hydrogen fluoride
doi
10.1002/14356007.a11_349
ISBN
3-527-30673-0
US patent 3180895A
doi
10.1002/0471238961.0612211506122514.a01.pub2

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