SU478837A1 - The method of obtaining polymers or copolymers of conjugated dienes - Google Patents
The method of obtaining polymers or copolymers of conjugated dienesInfo
- Publication number
- SU478837A1 SU478837A1 SU1857120A SU1857120A SU478837A1 SU 478837 A1 SU478837 A1 SU 478837A1 SU 1857120 A SU1857120 A SU 1857120A SU 1857120 A SU1857120 A SU 1857120A SU 478837 A1 SU478837 A1 SU 478837A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- copolymers
- conjugated dienes
- obtaining polymers
- polymers
- weight
- Prior art date
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
1one
Изобретение относитс к способам получени полимеров диенов-1,3, например изопрена, или сополимеров их с виниловыми мономерами , например стиролом, нитрилом акриловой кислоты и других, в водной среде в присутствии комплексных катализаторов на основе азот- и кислородсодержащих соединепий металлов VIII группы периодической системы и эмульгаторов, которые могут найти применение в -промышленности СК.The invention relates to methods for producing dienes-1,3 polymers, such as isoprene, or their copolymers with vinyl monomers, such as styrene, acrylic acid nitrile, and others, in an aqueous medium in the presence of complex catalysts based on nitrogen and oxygen-containing compounds of Group VIII of the periodic system and emulsifiers, which can be used in the UK industry.
Известен спосОб получени полимеров сопр женных диенов, например изопрена, и сополимеров его с виниловыми мономерами, например стиролом или нитрилом акриловой кислоты , полимеризадией мономеров в водной Среде в присутствии катализаторов на основе комплексных азот- и кислородсодержащих соединений металлов VIII группы периодической системы типа тетраэтилендиамин-|а-аминопероксокОбальт (1П) - кобальт() - нитрата и эмульгатора-натриевой соли парафиновых сульфокислот, содержащих в цепи 8-12 атомов углерода, и регул тора молекул рного веса - додецилмеркаптана. Дл проведени полимеризации по этому способу используют сокатализатор типа циклоалкенов, например циклооктадиен-1,5, циклооктатетраен и т. д., и процесс осуществл ют при 50°С и выше. Однако применение специально синтезируемых комплексных катализаторов усложн ет проведение процесса полимеризации. Кроме того, дл увеличени активности таких катализаторов необходимо присутствие больших количеств сокатализаторов (доA known method for the preparation of polymers of conjugated dienes, for example isoprene, and its copolymers with vinyl monomers, for example styrene or acrylic acid nitrile, polymerization of monomers in an aqueous medium in the presence of catalysts based on complex nitrogen of the group VIII of the periodic system of tetraethylene diamine type | a-aminoperoxobalt (1P) - cobalt () - nitrate and emulsifier — sodium salt of paraffin sulfonic acids containing 8–12 carbon atoms in the chain, and molecular weight regulator — dodecyl mercaptan. To carry out polymerization according to this method, a cycloalkenes-type cocatalyst is used, for example cyclooctadiene-1.5, cyclooctatetraene, etc., and the process is carried out at 50 ° C and above. However, the use of specially synthesized complex catalysts complicates the polymerization process. In addition, to increase the activity of such catalysts, the presence of large amounts of cocatalysts is necessary (up to
20 моль на 1 моль соединени переходного металла ), которые вл ютс дорогосто щими продуктами.20 mol per 1 mol of the transition metal compound), which are expensive products.
С целью упрощени технологии процесса предлагают в качестве катализатора использовать водный раствор соединени двухвалентного железа, например FeSO4-71-120, и динатриевой соли этилендиаминтетрауксусной кислоты (трилон «Б), вз тых в весовом соотношении 1:1-1:3, смешанный в атмосфере инертного таза с эмульгатором, анионным поверхностно-активным веществом - алкилсульфонатом натри с числом атомов углерода в цепи 12-18 в количестве 2-10 вес. ч. на 100 вес. ч. мономеров.In order to simplify the process, it is proposed to use as a catalyst an aqueous solution of a bivalent iron compound, for example FeSO4-71-120, and ethylenediaminetetraacetic acid disodium salt (Trilon B), taken in a weight ratio of 1: 1-1: 3, mixed in an atmosphere inert pelvis with emulsifier; anionic surfactant — sodium alkyl sulfonate with carbon atoms in the chain of 12–18 in an amount of 2–10 wt. hours per 100 weight. including monomers.
По предлагаемому способу провод т процесс полимеризации диенов-|1,3, например изопрена , или сополимеризации его с виниловыми мономерами, например стиролом, нитрилом акриловой кислоты в .присутствии указанныхAccording to the proposed method, the process of polymerizing dienes | 1,3, for example isoprene, or copolymerizing it with vinyl monomers, for example styrene, acrylic acid nitrile in the presence of these
комплексного катализатора и эмульгатора,complex catalyst and emulsifier,
причем количество катализатора должно бытьand the amount of catalyst should be
1-7 вес. ч. на 100 вес. ч. мономеров, при рН1-7 weight. hours per 100 weight. including monomers, at pH
среды 4,5-10.Wednesday 4.5-10.
Дл проведени процесса полимеризацииFor carrying out the polymerization process
приготовл ют водную фазу растворением вthe aqueous phase is prepared by dissolving in
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1857120A SU478837A1 (en) | 1972-12-12 | 1972-12-12 | The method of obtaining polymers or copolymers of conjugated dienes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1857120A SU478837A1 (en) | 1972-12-12 | 1972-12-12 | The method of obtaining polymers or copolymers of conjugated dienes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU478837A1 true SU478837A1 (en) | 1975-07-30 |
Family
ID=20535068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1857120A SU478837A1 (en) | 1972-12-12 | 1972-12-12 | The method of obtaining polymers or copolymers of conjugated dienes |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU478837A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864039A (en) * | 1986-03-31 | 1989-09-05 | Fuji Photo Film Co., Ltd. | 3,3'(2'H,2H-Spirobibenzofuran compounds |
-
1972
- 1972-12-12 SU SU1857120A patent/SU478837A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864039A (en) * | 1986-03-31 | 1989-09-05 | Fuji Photo Film Co., Ltd. | 3,3'(2'H,2H-Spirobibenzofuran compounds |
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