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Method for polymerizing tetraoxane

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专利汇可以提供Method for polymerizing tetraoxane专利检索,专利查询,专利分析的服务。并且Method for polymerizing tetraoxane by carrying out the polymerization at temperatures above 60* C. and in the presence of at least one hydrocarbon halide of the general formula RXn, wherein R is a radical having one to 15 carbon atoms, and may be a saturated or unsaturated aliphatic or alicyclic hydrocarbon residue, with different substituents for hydrogen in the hydrocarbon residue, X may be F, Cl, Br, or I, and n a positive integer not exceeding 10. The polymerization reaction can be promoted by ionizing irradiation either before or after hydrogen halides are added to the tetraoxane. The molecular weight and the yield of the polymer obtained by the invention are increased as compared to those obtained by conventional methods.,下面是Method for polymerizing tetraoxane专利的具体信息内容。

  • 2. The method According to claim 1, wherein said tetraoxane is in solid state.
  • 3. The method according to claim 1, wherein said tetraoxane is in liquid state.
  • 4. The method according to claim 1, wherein the polymerization of tetraoxane is carried out in the presence of a solvent, inert to formaldehyde.
  • 5. The method according to claim 1, wherein the tetraoxane is subjected to ionizing radiation.
  • 6. The method according to claim 5, wherein the dosage of the ionizing radiation is in the range of from 1 X 102 to 1 X 109 rad.
  • 7. The method according to claim 5, wherein the tetraoxane is subjected to ionizing radiation in the presence of the hydrocarbon halide before polymerization.
  • 8. The method according to claim 7, wherein the dosage of the ionizing radiation is in the range of from 1 X 102 to 1 X 109 rad, and the amount of said hydrocarbon halide is in the range of from 10 6 to 5 percent by weight, based on the amount of tetraoxane.
  • 9. The method according to claim 1, wherein said polymerization of said tetraoxane is carried out under irradiation of ionizing radiation.
  • 10. The method according to claim 9, wherein the dose rate of ionizing radiation is in the range of from 1 X 102 to 1 X 109 rad/hour, the dosage of the ionizing radiation is in the range of from 1 X 102 to 1 X 109 rad, and the amount of said hydrocarbon halide is in the range of from 10 6 to 5 percent by weight, based on the amount of tetraoxane.
  • 11. The method according to claim 1, wherein said tetraoxane is subjected to ionizing radiation in the presence of said hydrocarbon halide at temperatures lower than 60* C.
  • 12. The method according to claim 11, wherein the dosage of the ionizing radiation is in the range of from 1 X 102 to 1 X 109 rad, and the amount of said hydrocarbon halide is in the range of from 10 6 to 5 percent by weight, based on the amount of tetraoxane.
  • 13. The method according to claim 1, wherein the amount of said hydrocarbon halide is in the range of from 0.01 to 10 percent by weight, based on the amount of tetraoxane, when ionizing radiation is not applied.
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