RU93009807A - METHOD FOR PRODUCING BLOCK COPOLIMERS - Google Patents

METHOD FOR PRODUCING BLOCK COPOLIMERS

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Publication number
RU93009807A
RU93009807A RU93009807/04A RU93009807A RU93009807A RU 93009807 A RU93009807 A RU 93009807A RU 93009807/04 A RU93009807/04 A RU 93009807/04A RU 93009807 A RU93009807 A RU 93009807A RU 93009807 A RU93009807 A RU 93009807A
Authority
RU
Russia
Prior art keywords
copolimers
producing block
introducing
branching agent
monomer
Prior art date
Application number
RU93009807/04A
Other languages
Russian (ru)
Inventor
В.Н. Забористов
И.П. Гольберг
Л.Ф. Гозенко
В.С. Ряховский
Original Assignee
Акционерное общество открытого типа "Ефремовский завод синтетического каучука"
Filing date
Publication date
Application filed by Акционерное общество открытого типа "Ефремовский завод синтетического каучука" filed Critical Акционерное общество открытого типа "Ефремовский завод синтетического каучука"
Publication of RU93009807A publication Critical patent/RU93009807A/en

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Claims (1)

Изобретение может быть использовано в нефтехимической промышленности. Способ получения блок-сополимеров при полимеризации бутадиена и изопрена на литиевом органическом инициаторе введением в полимеризат одного из мономеров разветвляющего агента, а затем при уровне конверсии первого 20-80%, введение другого мономера до полной конверсии мономера, причем в качестве разветвляющего агента используется дивинилбензол.The invention can be used in the petrochemical industry. A method for producing block copolymers during the polymerization of butadiene and isoprene on a lithium organic initiator by introducing one of the monomers of a branching agent into the polymerizate, and then at the conversion level of the first 20-80%, introducing the other monomer until the monomer is completely converted, using divinylbenzene as the branching agent.
RU93009807/04A 1993-02-25 METHOD FOR PRODUCING BLOCK COPOLIMERS RU93009807A (en)

Publications (1)

Publication Number Publication Date
RU93009807A true RU93009807A (en) 1996-10-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2768696C2 (en) * 2017-05-31 2022-03-24 ВЕРСАЛИС С.п.А. Butadiene-isoprene diblock copolymers and method for production thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2768696C2 (en) * 2017-05-31 2022-03-24 ВЕРСАЛИС С.п.А. Butadiene-isoprene diblock copolymers and method for production thereof
US11661470B2 (en) 2017-05-31 2023-05-30 Versalis S.P.A. Butadiene-isoprene diblock copolymers and process for the preparation thereof

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