AT204779B - Polymerization process - Google Patents
Polymerization processInfo
- Publication number
- AT204779B AT204779B AT185258A AT185258A AT204779B AT 204779 B AT204779 B AT 204779B AT 185258 A AT185258 A AT 185258A AT 185258 A AT185258 A AT 185258A AT 204779 B AT204779 B AT 204779B
- Authority
- AT
- Austria
- Prior art keywords
- polymerization process
- polymerization
- metal
- magnesium
- desc
- Prior art date
Links
- 238000006116 polymerization reaction Methods 0.000 title description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 150000001649 bromium compounds Chemical class 0.000 claims 1
- 125000005843 halogen group Chemical group 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- WYXUZTXCGKPAEH-UHFFFAOYSA-N bromoethane;magnesium Chemical compound [Mg].CCBr WYXUZTXCGKPAEH-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 150000002680 magnesium Chemical class 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
Landscapes
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Polymerisation
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Polymerisation von Verbindungen mit der Geruppe CHg=C' < , insbesondere von. Vinylchlorid, unter Benützung organo- metallischer Verbindungen als Polymerisations-
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worin Rl, R2 und Rg gleiche oder verschiedene Alkylradikale bedeuten, M ein Metall der II. Gruppe des periodischen Systems und X ein Halogen ist, viel wirksamere Polymerisationskatalysatoren für Vinylchlorid als Magnesium- äthylbromid sind. Das Ausmass der Umwandlung in Polymere ist selbst dann höher, wenn man bei niedrigen. Temperaturen arbeitet.
Ohne eine Theorie über die Wirkung dieser neuen Katalysatoren aufstellen zu wollen, kann gesagt werden, dass die Wirksamkeit auf die Gegenwart eines Kohlenstoffatoms zurückzu- führen ist, von welchem drei Valenzen mit Alkylradikalen besetzt sind, während die vierte an : das Metall gebunden ist.
Vorzugsweise wird ein organisches Derivat des Magnesiums benützt, wie dies in, den nachfolgenden nicht beschränkenden Ausführungsbeispielen gezeigt ist.
Bei s pi el 1 : 0, 01 Mol tert. Butylmagneiiumbromid in Äthyloxydlösung, werden mit 1 Mol des zu polymerisierenden Vinylchlorids versetzt. Bei 200 C erzielt man in 12 Stunden
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Polymerization process
The present invention relates to a process for the polymerization of compounds with the group CHg = C '<, in particular of. Vinyl chloride, using organometallic compounds as polymerization
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where Rl, R2 and Rg are identical or different alkyl radicals, M is a metal of group II of the periodic table and X is a halogen, are much more effective polymerization catalysts for vinyl chloride than magnesium ethyl bromide. The degree of conversion to polymers is higher even when looking at low. Temperatures works.
Without wishing to set up a theory about the effectiveness of these new catalysts, it can be said that the effectiveness is due to the presence of a carbon atom, of which three valences are occupied by alkyl radicals, while the fourth is bonded to the metal.
An organic derivative of magnesium is preferably used, as shown in the following non-limiting exemplary embodiments.
At s pi el 1: 0.01 mol tert. Butylmagneiiumbromid in Äthyloxydlösung are mixed with 1 mol of the vinyl chloride to be polymerized. At 200 C it takes 12 hours
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** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE204779X | 1957-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT204779B true AT204779B (en) | 1959-08-10 |
Family
ID=3864848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT185258A AT204779B (en) | 1957-03-14 | 1958-03-13 | Polymerization process |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT204779B (en) |
-
1958
- 1958-03-13 AT AT185258A patent/AT204779B/en active
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