JPS6416836A - Novel polyimide copolymer and polyamic acid copolymer and production thereof - Google Patents
Novel polyimide copolymer and polyamic acid copolymer and production thereofInfo
- Publication number
- JPS6416836A JPS6416836A JP17412787A JP17412787A JPS6416836A JP S6416836 A JPS6416836 A JP S6416836A JP 17412787 A JP17412787 A JP 17412787A JP 17412787 A JP17412787 A JP 17412787A JP S6416836 A JPS6416836 A JP S6416836A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- copolymer
- organic
- reaction
- organic diamine
- 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
Landscapes
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
PURPOSE:To obtain the titled copolymer outstanding in dimensional stability, strength, processability and heat resistance, by reaction between an organic tetracarboxylic dianhydride and too little polar amount of organic diamine to prepare a prepolymer and then carrying out reaction with specified amount of a second organic diamine followed by ring closure on dehydration. CONSTITUTION:First, a reaction is carried out, in an organic polar solvent, between (A) an organic tetracarboxylic dianhydride of formula I (R0 is tetravalent aromatic group) and (B) too little molar amount of an organic diamine of formula II [R1 is of formula III (X is monovalent substituent) or of formula IV] to prepare a prepolymer having acid anhydride groups at the both ends. Thence, this prepolymer is incorporated with (C) such amount of a second organic diamine of formula V (R2 is the same kind as R1) that the total organic diamine (components B plus C) be equimolar to the component A followed by the reaction to form the objective polyamic acid copolymer. This copolymer is then thermally or chemically dehydrated to effect ring closure, thus obtaining the other objective copolymer constituted of recurring unit of formula VI (m is positive integer).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17412787A JPS6416836A (en) | 1987-07-13 | 1987-07-13 | Novel polyimide copolymer and polyamic acid copolymer and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17412787A JPS6416836A (en) | 1987-07-13 | 1987-07-13 | Novel polyimide copolymer and polyamic acid copolymer and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6416836A true JPS6416836A (en) | 1989-01-20 |
Family
ID=15973128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17412787A Pending JPS6416836A (en) | 1987-07-13 | 1987-07-13 | Novel polyimide copolymer and polyamic acid copolymer and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6416836A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6258449B1 (en) | 1998-06-09 | 2001-07-10 | Nitto Denko Corporation | Low-thermal expansion circuit board and multilayer circuit board |
| JP2006183040A (en) * | 2004-12-03 | 2006-07-13 | Ube Ind Ltd | Polyimide, polyimide film and laminated body |
-
1987
- 1987-07-13 JP JP17412787A patent/JPS6416836A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6258449B1 (en) | 1998-06-09 | 2001-07-10 | Nitto Denko Corporation | Low-thermal expansion circuit board and multilayer circuit board |
| JP2006183040A (en) * | 2004-12-03 | 2006-07-13 | Ube Ind Ltd | Polyimide, polyimide film and laminated body |
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