SU138373A1 - Method for producing acrylonitrile copolymers - Google Patents
Method for producing acrylonitrile copolymersInfo
- Publication number
- SU138373A1 SU138373A1 SU672808A SU672808A SU138373A1 SU 138373 A1 SU138373 A1 SU 138373A1 SU 672808 A SU672808 A SU 672808A SU 672808 A SU672808 A SU 672808A SU 138373 A1 SU138373 A1 SU 138373A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acrylonitrile copolymers
- producing acrylonitrile
- copolymerization
- hydrazine hydrate
- solution
- Prior art date
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
Способ получени сополимеров акрилонитрила, содержащих в боковых цеп х макромолекул гидразидные группы, известен.A process for preparing acrylonitrile copolymers containing hydrazide groups in the side chains of macromolecules is known.
С целью примепени более дешевых и доступных мономеров, а также упрощени процесса сополимеризации, предложено акрилонитрил сополимеризовать с метилакрилатом в водном растворе роданистого натри в присутствии 1-10% гидразингидрата.In order to use cheaper and more accessible monomers, as well as to simplify the copolymerization process, it was proposed to copolymerize acrylonitrile with methyl acrylate in an aqueous solution of sodium anhydride in the presence of 1-10% hydrazine hydrate.
Предложенный способ в литературе не описан.The proposed method in the literature is not described.
Способ сополимеризации гидразингидрата с метилакрилатом дает возможность получать концентрированные растворы модифицированного сополимера в водном растворе роданистого натри . Волокно, полученное из данного сополимера, может окрашиватьс в глубокие тона основными кислотными и ацетатными красител ми. Гидразингидрат, примен емый в процессе полимеризации, регулирует процесс полимеризации и защитного агента от кислорода воздуха. Сополимеризаци проводитс ,при начальном соотношении акрилонитрила и метилакрилата как ,94:6 вес. %. Концентраци вышеуказанных мономеров в растворе - 14%, а количество при этом гидразингидрата- 1-3% от веса мономе ,ров. Концентраци соли роданистого натри -50%. В качестве инициатора примен етс динитрил азодиизомасл ной кислоты в количестве 0,1% от веса раствора.The method of copolymerization of hydrazine hydrate with methyl acrylate makes it possible to obtain concentrated solutions of the modified copolymer in an aqueous solution of sodium anhydride. The fiber obtained from this copolymer can be dyed in deep tones with basic acid and acetate dyes. The hydrazine hydrate used in the polymerization process regulates the polymerization process and the protective agent from atmospheric oxygen. The copolymerization is carried out at an initial ratio of acrylonitrile and methyl acrylate, 94: 6 wt. % The concentration of the above monomers in the solution is 14%, while the amount of hydrazine hydrate is 1-3% by weight of the monomer, ditch. Rhodanate sodium salt concentration -50%. Dinitrile azo-diisobutyric acid is used as an initiator in an amount of 0.1% by weight of the solution.
Сополимеризаци проводитс при непрерывном перемешивании в течение 2 час при 70°. При этом выход сополимера - 63-65%, а удель .на в зкость в 0,5%-ном растворе диметилформамида - 0,8. Концентради пр дильного раствора - 12%.The copolymerization is carried out with continuous stirring for 2 hours at 70 °. At the same time, the copolymer yield is 63–65%, and the specific viscosity in a 0.5% solution of dimethylformamide is 0.8. The concentration of the dope is 12%.
Предмет изобретени Subject invention
Способ получени сополимеров акрилонитрила, содержащих в боковых цеп х макромолекул гидразидные группы, отличающийс A method of producing acrylonitrile copolymers containing hydrazide groups in the side chains of macromolecules, characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU672808A SU138373A1 (en) | 1960-07-11 | 1960-07-11 | Method for producing acrylonitrile copolymers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU672808A SU138373A1 (en) | 1960-07-11 | 1960-07-11 | Method for producing acrylonitrile copolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU138373A1 true SU138373A1 (en) | 1960-11-30 |
Family
ID=48294526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU672808A SU138373A1 (en) | 1960-07-11 | 1960-07-11 | Method for producing acrylonitrile copolymers |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU138373A1 (en) |
-
1960
- 1960-07-11 SU SU672808A patent/SU138373A1/en active
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