JPS5560528A - Preparation of phosphazene polymer - Google Patents
Preparation of phosphazene polymerInfo
- Publication number
- JPS5560528A JPS5560528A JP13407578A JP13407578A JPS5560528A JP S5560528 A JPS5560528 A JP S5560528A JP 13407578 A JP13407578 A JP 13407578A JP 13407578 A JP13407578 A JP 13407578A JP S5560528 A JPS5560528 A JP S5560528A
- Authority
- JP
- Japan
- Prior art keywords
- phosphazene
- oligomer
- preparation
- polymer
- closed system
- 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 prepare a high-polymerization degree phosphazene polymer industrially and advantageously, by heating a phosphazene oligomer in the presence of a Lewis base as a catalyst in a closed system.
CONSTITUTION: (A) A phosphazene oligomer, preferably a mixture of a linear and a cyclic oligomers stabilized with phosphorus pentahalide or a hydrogen halide, comprising 5W95wt% of the linear oligomer, is heated in the presence of (B) a Lewis base, e.g. urea or thiourea, at 150W350°C, preferably 200W300°C, in a closed system to give the title polymer. The amount of (B) is preferably about 0.1W5% based on (A).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13407578A JPS5560528A (en) | 1978-10-30 | 1978-10-30 | Preparation of phosphazene polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13407578A JPS5560528A (en) | 1978-10-30 | 1978-10-30 | Preparation of phosphazene polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5560528A true JPS5560528A (en) | 1980-05-07 |
JPS6242843B2 JPS6242843B2 (en) | 1987-09-10 |
Family
ID=15119798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13407578A Granted JPS5560528A (en) | 1978-10-30 | 1978-10-30 | Preparation of phosphazene polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5560528A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5554012U (en) * | 1978-10-09 | 1980-04-12 |
-
1978
- 1978-10-30 JP JP13407578A patent/JPS5560528A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5554012U (en) * | 1978-10-09 | 1980-04-12 | ||
JPS5925220Y2 (en) * | 1978-10-09 | 1984-07-25 | ワイケイケイ株式会社 | Slide fastener |
Also Published As
Publication number | Publication date |
---|---|
JPS6242843B2 (en) | 1987-09-10 |
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