GB858581A - Polymerisation of conjugated polyenes - Google Patents
Polymerisation of conjugated polyenesInfo
- Publication number
- GB858581A GB858581A GB3167956A GB3167956A GB858581A GB 858581 A GB858581 A GB 858581A GB 3167956 A GB3167956 A GB 3167956A GB 3167956 A GB3167956 A GB 3167956A GB 858581 A GB858581 A GB 858581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- phenyl
- sodium
- lithium
- titanium trichloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Conjugated polyenes are polymerized by contact with a catalyst system formed by contacting a reducing component with preformed metastable titanium trichloride. The polyenes, of which many are specified, may be aliphatic or cycloaliphatic, e.g. butadiene-1, 3, isoprene, chloroprene, piperylene, 4-methyl-hexadiene-1, 3 and 2, 3-diphenyl-butadiene and may be polymerized alone or inter se or in admixture with monoolifinic or non-conjugated polyolefinic compounds of which many are specified. The reducing components are those which can be used for carrying out the process of Belgian Specification 543,292, e.g. the alkyl and aryl compounds of lithium, sodium, magnesium, zinc, cadmium, aluminium, tin and lead. The polymerization is preferably effected with the reaction components dispersed in an inert liquid, e.g. aliphatic, cycloaliphatic, hydrogenated aromatic and halogenated aromatic hydrocarbons and in the absence of oxygen, carbon dioxide or water. The examples describe the preparation of polymers from butadiene-1, 3, isoprene and mixtures of chloroprene with ethylene, butylene or isoprene in the presence of catalysts made from titanium trichloride and triethylaluminium, lead tetraethyl, tin tetraethyl, phenyl sodium, phenyl lithium, n-butyl lithium, n-butyl sodium, diethyl cadmium, phenyl calcium iodide, barium phenyl iodide, diethyl aluminium chloride, tri-isobutyl aluminium and di-iosbutyl aluminium hydride.ALSO:Finely divided metastable titanium trichloride which can be irreversibly converted to the stable form by the action of heat, e.g. at temperatures above 200 DEG C., is produced by passing titanium tetrachloride vapour and hydrogen free from oxygen through a silent electric discharge, preferably at a temperature between 0 DEG C. and 100 DEG C. Any form of silent electric discharge may be used. Catalysts for the polymerization of conjugated polyenes are produced by mixing, preferably in an inert liquid vehicle, e.g. aliphatic, aromatic, cycloaliphatic, hydrogenated aromatic and halogenated aromatic hydrocarbons, metastable titanium trichloride and a reducing component as defined in Belgian Specification 543,292. Specified reducing components are the alkyl and aryl compounds of lithium, sodium, magnesium, zinc, cadmium, aluminium, tin and lead; specific examples being lead tetraethyl, tin tetraethyl, phenyl sodium, phenyl lithium, n-butyl lithium, n-butyl sodium, diethyl cadmium, phenyl calcium iodide, phenyl barium iodide, triethyl aluminium, triisobutyl aluminium, tri-n-octyl aluminium, dimethyl aluminium methoxide, di-isobutyl aluminium hydride and diethyl aluminium halides. In the example a catalyst is made by mixing triethyl aluminium and metastable titanium trichloride in the presence of toluene.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE561698D BE561698A (en) | 1956-10-18 | ||
| NL101750D NL101750C (en) | 1956-10-18 | ||
| NL221230D NL221230A (en) | 1956-10-18 | ||
| GB3167956A GB858581A (en) | 1956-10-18 | 1956-10-18 | Polymerisation of conjugated polyenes |
| FR1183339D FR1183339A (en) | 1956-10-18 | 1957-09-25 | Conjugated alkenes polymerization process |
| DED26609A DE1092661B (en) | 1956-10-18 | 1957-10-10 | Process for the polymerization of conjugated alkenes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3167956A GB858581A (en) | 1956-10-18 | 1956-10-18 | Polymerisation of conjugated polyenes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB858581A true GB858581A (en) | 1961-01-11 |
Family
ID=10326784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3167956A Expired GB858581A (en) | 1956-10-18 | 1956-10-18 | Polymerisation of conjugated polyenes |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE561698A (en) |
| DE (1) | DE1092661B (en) |
| FR (1) | FR1183339A (en) |
| GB (1) | GB858581A (en) |
| NL (2) | NL101750C (en) |
-
0
- NL NL221230D patent/NL221230A/xx unknown
- NL NL101750D patent/NL101750C/xx active
- BE BE561698D patent/BE561698A/xx unknown
-
1956
- 1956-10-18 GB GB3167956A patent/GB858581A/en not_active Expired
-
1957
- 1957-09-25 FR FR1183339D patent/FR1183339A/en not_active Expired
- 1957-10-10 DE DED26609A patent/DE1092661B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL221230A (en) | |
| DE1092661B (en) | 1960-11-10 |
| NL101750C (en) | |
| FR1183339A (en) | 1959-07-06 |
| BE561698A (en) |
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