JPS5773013A - Preparation of polybutadiene - Google Patents
Preparation of polybutadieneInfo
- Publication number
- JPS5773013A JPS5773013A JP14932980A JP14932980A JPS5773013A JP S5773013 A JPS5773013 A JP S5773013A JP 14932980 A JP14932980 A JP 14932980A JP 14932980 A JP14932980 A JP 14932980A JP S5773013 A JPS5773013 A JP S5773013A
- Authority
- JP
- Japan
- Prior art keywords
- molecular weight
- pref
- ratio
- average molecular
- component
- 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.)
- Pending
Links
- 239000005062 Polybutadiene Substances 0.000 title abstract 2
- 229920002857 polybutadiene Polymers 0.000 title abstract 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract 4
- 238000006116 polymerization reaction Methods 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical class C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 abstract 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 150000001491 aromatic compounds Chemical class 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 230000009849 deactivation Effects 0.000 abstract 2
- 229910052744 lithium Inorganic materials 0.000 abstract 2
- 229920006216 polyvinyl aromatic Polymers 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 150000003003 phosphines Chemical class 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 239000001294 propane Substances 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Landscapes
- Polymerisation Methods In General (AREA)
- Polymerization Catalysts (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To prepare a polymer having excellent cold flow property and coauylability with steam, and narrow molecular weight distribution, by copolymerizing butadiene in the presence of a small amount of a polyvinyl aromatic compound using a Li- based catalyst having a specific deactivation ratio.
CONSTITUTION: A polybutadiene having a Mooney viscosity of 30W80, the weight- average molecular weight/number-average molecular weight ratio of ≤2, and a vinyl bond content of 65W90mol%, is prepared by polymerizing (A) 1,3-butadiene in a hydrocarbon solvent (pref. propane, etc.) as the polymerization solvent, in the presence of (B) a polar compound selected from ethers, amines, phosphines, and sulfides and (C) 0.03W0.1pt.wt., based on 100pts.wt. of the component (A), of a polyvinyl aromatic compound (esp. divinylbenzene isomer), introducing (D) a lithium-based catalyst (pref. n-buthyl lithium, etc.) which is previously brought into contact with the component (A) and the polymerization solvent to reduce its deactivation ratio to ≤1/3 of the total active Li, into the polymerization system.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14932980A JPS5773013A (en) | 1980-10-27 | 1980-10-27 | Preparation of polybutadiene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14932980A JPS5773013A (en) | 1980-10-27 | 1980-10-27 | Preparation of polybutadiene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5773013A true JPS5773013A (en) | 1982-05-07 |
Family
ID=15472724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14932980A Pending JPS5773013A (en) | 1980-10-27 | 1980-10-27 | Preparation of polybutadiene |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5773013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218953A (en) * | 1996-12-03 | 1998-08-18 | Nippon Elastomer Kk | Rubbery polymer, its production, new anionic polymerization initiator and resin composition |
-
1980
- 1980-10-27 JP JP14932980A patent/JPS5773013A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218953A (en) * | 1996-12-03 | 1998-08-18 | Nippon Elastomer Kk | Rubbery polymer, its production, new anionic polymerization initiator and resin composition |
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