CS274841B2 - Method of epsilon-caprolactam's block copolymers preparation - Google Patents
Method of epsilon-caprolactam's block copolymers preparationInfo
- Publication number
- CS274841B2 CS274841B2 CS22889A CS22889A CS274841B2 CS 274841 B2 CS274841 B2 CS 274841B2 CS 22889 A CS22889 A CS 22889A CS 22889 A CS22889 A CS 22889A CS 274841 B2 CS274841 B2 CS 274841B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- caprolactam
- block copolymers
- weight
- epsilon
- percent
- Prior art date
Links
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title abstract 6
- 229920001400 block copolymer Polymers 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000010539 anionic addition polymerization reaction Methods 0.000 abstract 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 1
- 150000001923 cyclic compounds Chemical class 0.000 abstract 1
- 125000000524 functional group Chemical group 0.000 abstract 1
- 159000000011 group IA salts Chemical class 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 abstract 1
- 150000002513 isocyanates Chemical class 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
Landscapes
- Polyamides (AREA)
Abstract
The solution concerns a method of preparation of block copolymers of ε-caprolactam by anionic polymerization initiated by alkaline salts of ε-caprolactam or their precursors, in presence of 0.1 to 40 percent by weight, optimally from 1 to 15 percent by weight of low-molecular-weight polymers with hydroxyl, carboxyl and amino terminal functional groups, and is activated by monofunctional isocyanates or their cyclic compounds, while the polymerization proceeds for a period of 1 to 200 minutes at a temperature of 130 to 260 degrees C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS22889A CS274841B2 (en) | 1989-01-13 | 1989-01-13 | Method of epsilon-caprolactam's block copolymers preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS22889A CS274841B2 (en) | 1989-01-13 | 1989-01-13 | Method of epsilon-caprolactam's block copolymers preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS274841B2 true CS274841B2 (en) | 1991-11-12 |
Family
ID=5334027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS22889A CS274841B2 (en) | 1989-01-13 | 1989-01-13 | Method of epsilon-caprolactam's block copolymers preparation |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS274841B2 (en) |
-
1989
- 1989-01-13 CS CS22889A patent/CS274841B2/en unknown
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