JPS5624420A - Preparation of alkylene oxide polymer having arbitrary polymerization degree - Google Patents
Preparation of alkylene oxide polymer having arbitrary polymerization degreeInfo
- Publication number
- JPS5624420A JPS5624420A JP10054279A JP10054279A JPS5624420A JP S5624420 A JPS5624420 A JP S5624420A JP 10054279 A JP10054279 A JP 10054279A JP 10054279 A JP10054279 A JP 10054279A JP S5624420 A JPS5624420 A JP S5624420A
- Authority
- JP
- Japan
- Prior art keywords
- alkylene oxide
- polymerization degree
- polymerization
- polymer
- oxide polymer
- 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.)
- Granted
Links
- 238000006116 polymerization reaction Methods 0.000 title abstract 6
- 229920000642 polymer Polymers 0.000 title abstract 5
- 125000002947 alkylene group Chemical group 0.000 title abstract 4
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 abstract 5
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Landscapes
- Polyethers (AREA)
Abstract
PURPOSE: To prepare reproducibly and accurately an alkylene oxide polymer having an arbitrary polymerization degree, by adding 2,2'-azobis-(2,4-dimethylvaleronitrile) as a polymerization degree-controlling agent to the polymerization system.
CONSTITUTION: Preferably 0.01W5wt% of 2,2'-azobis-(2,4-dimethyl-valeronitrile) (ADVN) is added to (A) the system for the catalytic polymerization of an alkylene oxide or (B) an alkylene oxide polymer. In the case of (A), the polymerization temperatue is preferably 0W60°C. In the case of (B), the powdery polymer is mixed with ADVN directly or in a solvent and treated at preferably 50W100°C.
EFFECT: As the decomposition rate of the ADVN is high, the treating time is reduced. As the amount of the residual radical is small, the stability of the polymer is improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10054279A JPS5624420A (en) | 1979-08-06 | 1979-08-06 | Preparation of alkylene oxide polymer having arbitrary polymerization degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10054279A JPS5624420A (en) | 1979-08-06 | 1979-08-06 | Preparation of alkylene oxide polymer having arbitrary polymerization degree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5624420A true JPS5624420A (en) | 1981-03-09 |
| JPS6221012B2 JPS6221012B2 (en) | 1987-05-11 |
Family
ID=14276833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10054279A Granted JPS5624420A (en) | 1979-08-06 | 1979-08-06 | Preparation of alkylene oxide polymer having arbitrary polymerization degree |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5624420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013080888A1 (en) | 2011-11-30 | 2013-06-06 | 住友精化株式会社 | Method for producing medium-molecular-weight polyalkyleneoxide |
-
1979
- 1979-08-06 JP JP10054279A patent/JPS5624420A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013080888A1 (en) | 2011-11-30 | 2013-06-06 | 住友精化株式会社 | Method for producing medium-molecular-weight polyalkyleneoxide |
| JPWO2013080888A1 (en) * | 2011-11-30 | 2015-04-27 | 住友精化株式会社 | Method for producing medium molecular weight polyalkylene oxide |
| US9199901B2 (en) | 2011-11-30 | 2015-12-01 | Sumitomo Seika Chemicals Co., Ltd. | Method for producing medium-molecular-weight polyalkyleneoxide |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6221012B2 (en) | 1987-05-11 |
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