JPS5690835A - Production of polysulfide - Google Patents
Production of polysulfideInfo
- Publication number
- JPS5690835A JPS5690835A JP16877579A JP16877579A JPS5690835A JP S5690835 A JPS5690835 A JP S5690835A JP 16877579 A JP16877579 A JP 16877579A JP 16877579 A JP16877579 A JP 16877579A JP S5690835 A JPS5690835 A JP S5690835A
- Authority
- JP
- Japan
- Prior art keywords
- sulfide
- alkali metal
- soln
- formula
- phase transfer
- 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
Landscapes
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
PURPOSE: To synthesize simply and at low cost a polyalkylene sulfide in a one-stage process, by reacting an aq. soln. of an alkali metal sulfide with an alkylene halide by using a phase transfer catalyst.
CONSTITUTION: An aq. soln. of an alkali metal sulfide (e.g. sodium sulfide or potassium sulfide) is reacted with an alkylene halide having the formula X-R'-Y (wherein R' is 1W20C bivalent alkylene group, X, Y are halogen) (e.g. dichloromethane or bromochloromethane) by using a phase transfer catalyst (e.g. trioctylmethylammonium chloride) to produce a polysulfide having a repeating unit of the formula -(R-S)-(wherein R is a bivalent org. group) (e.g. polymethylene sulfide). The inexpensive alkali metal sulfides can be used. The polyalkylene sulfide can be produced even if a large amount of water is present. When the process is directed to produce polymethylene sulfide, the polymer can be obtd. in a one-stage process without isolating the intermediate, a cyclic oligomer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16877579A JPS5690835A (en) | 1979-12-24 | 1979-12-24 | Production of polysulfide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16877579A JPS5690835A (en) | 1979-12-24 | 1979-12-24 | Production of polysulfide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5690835A true JPS5690835A (en) | 1981-07-23 |
JPS6345413B2 JPS6345413B2 (en) | 1988-09-09 |
Family
ID=15874223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16877579A Granted JPS5690835A (en) | 1979-12-24 | 1979-12-24 | Production of polysulfide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690835A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6939941B2 (en) | 2001-09-12 | 2005-09-06 | Toray Fine Chemicals Co., Ltd. | Preparation of polysulfide compositions |
KR100611310B1 (en) | 2004-10-06 | 2006-08-10 | 홍진희 | The preparation method of adsorbent of precious metals |
KR100611347B1 (en) | 2004-10-06 | 2006-08-11 | 홍진희 | The adsorbent of precious metals and the method of adsorption extraction of precious metals |
JP2011519388A (en) * | 2008-04-24 | 2011-07-07 | ピーアールシー−デソト インターナショナル,インコーポレイティド | Thioethers, methods for their preparation, and compositions containing such thioethers |
US8466220B2 (en) | 2008-04-24 | 2013-06-18 | PRC DeSoto International, Inc | Thioethers, methods for their preparation, and compositions including such thioethers |
-
1979
- 1979-12-24 JP JP16877579A patent/JPS5690835A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6939941B2 (en) | 2001-09-12 | 2005-09-06 | Toray Fine Chemicals Co., Ltd. | Preparation of polysulfide compositions |
KR100611310B1 (en) | 2004-10-06 | 2006-08-10 | 홍진희 | The preparation method of adsorbent of precious metals |
KR100611347B1 (en) | 2004-10-06 | 2006-08-11 | 홍진희 | The adsorbent of precious metals and the method of adsorption extraction of precious metals |
JP2011519388A (en) * | 2008-04-24 | 2011-07-07 | ピーアールシー−デソト インターナショナル,インコーポレイティド | Thioethers, methods for their preparation, and compositions containing such thioethers |
US8466220B2 (en) | 2008-04-24 | 2013-06-18 | PRC DeSoto International, Inc | Thioethers, methods for their preparation, and compositions including such thioethers |
US8481627B2 (en) | 2008-04-24 | 2013-07-09 | Prc Desoto International, Inc. | Thioethers, methods for their preparation, and compositions including such thioethers |
JP2015004076A (en) * | 2008-04-24 | 2015-01-08 | ピーアールシー−デソト インターナショナル,インコーポレイティド | Thioethers, methods for preparing the same, and composition including thioethers |
Also Published As
Publication number | Publication date |
---|---|
JPS6345413B2 (en) | 1988-09-09 |
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