JPS5452197A - Polymerization of lactam - Google Patents
Polymerization of lactamInfo
- Publication number
- JPS5452197A JPS5452197A JP11879177A JP11879177A JPS5452197A JP S5452197 A JPS5452197 A JP S5452197A JP 11879177 A JP11879177 A JP 11879177A JP 11879177 A JP11879177 A JP 11879177A JP S5452197 A JPS5452197 A JP S5452197A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- lactam
- quarternary phosphonium
- phosphonium salt
- conducted
- 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
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- Polyamides (AREA)
Abstract
PURPOSE: The anionic polymerization of lactam is conducted by using a quarternary phosphonium salt as a catalyst to produce lactam polymer with high heat stability.
CONSTITUTION: The anionic polymerization of lactam is conducted by using a quarternary phosphonium salt, e.g., a compound of formula I (R1, R2, R3, R4 are respectively residues of aliphatic, alicyclic and aromatic hydrocarbyls; Mn- is n-valent anion; n is 1, 2) as a catalyst. The preferable compound of quarternary phosphonium salt of formula I is prepared by the reaction between an anionically polymerizable monomer and a quarternary phosphonium base of formula II. The anionically polymerizable monomers are, e.g., lactams and cyclic siloxanes. The quarternary phosphonium base of formula II is, e. g., tetramethylphosphonium hydroxide, triphenylmethylphosphonium hydroxide
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11879177A JPS6017292B2 (en) | 1977-10-03 | 1977-10-03 | Lactam polymerization method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11879177A JPS6017292B2 (en) | 1977-10-03 | 1977-10-03 | Lactam polymerization method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5452197A true JPS5452197A (en) | 1979-04-24 |
JPS6017292B2 JPS6017292B2 (en) | 1985-05-02 |
Family
ID=14745176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11879177A Expired JPS6017292B2 (en) | 1977-10-03 | 1977-10-03 | Lactam polymerization method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6017292B2 (en) |
-
1977
- 1977-10-03 JP JP11879177A patent/JPS6017292B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6017292B2 (en) | 1985-05-02 |
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