GB2007686A - Multi-Arm Star Copolymers - Google Patents

Multi-Arm Star Copolymers

Info

Publication number
GB2007686A
GB2007686A GB7839327A GB7839327A GB2007686A GB 2007686 A GB2007686 A GB 2007686A GB 7839327 A GB7839327 A GB 7839327A GB 7839327 A GB7839327 A GB 7839327A GB 2007686 A GB2007686 A GB 2007686A
Authority
GB
United Kingdom
Prior art keywords
vinyl pyridine
copolymerisation
copolymer
copolymers
units
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.)
Granted
Application number
GB7839327A
Other versions
GB2007686B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Akron
Original Assignee
University of Akron
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by University of Akron filed Critical University of Akron
Priority to GB7839327A priority Critical patent/GB2007686B/en
Publication of GB2007686A publication Critical patent/GB2007686A/en
Application granted granted Critical
Publication of GB2007686B publication Critical patent/GB2007686B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C08F297/023—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type using a coupling agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

Multi-arm star copolymers have good physical properties due to copolymerized vinyl pyridine. The copolymers are prepared by subjecting to anionic polymerisation or copolymerisation in a solvent a 1,3- conjugated diene e.g. butadiene, alone or in admixture with a monoalkenyl aromatic monomer, e.g. styrene, using a monolithio organometallic initiator. The copolymerisation may be random or block copolymerisation. At least three moles of divinyl benzene per active polymeric anion are then added to form a nucleus to which at least four radial arms containing the diene units are linked, thus forming a multi- arm star polymer or copolymer. A vinyl pyridine or mixture of monomers one of which is a vinyl pyridine is thereafter added to provide the star copolymer with at least one additional arm containing units of polymerized or copolymerized vinyl pyridine which latter units constitute from 0.5 to 50% by weight of the resulting copolymer. The addition of a proton donor to the polymerization mixture decomposes the active chain ends and enables the resulting copolymer to be recovered in conventional manner.
GB7839327A 1977-07-05 1978-10-04 Multi-arm star copolymers Expired GB2007686B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7839327A GB2007686B (en) 1977-07-05 1978-10-04 Multi-arm star copolymers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2817277 1977-07-05
GB7839327A GB2007686B (en) 1977-07-05 1978-10-04 Multi-arm star copolymers

Publications (2)

Publication Number Publication Date
GB2007686A true GB2007686A (en) 1979-05-23
GB2007686B GB2007686B (en) 1982-03-24

Family

ID=26259238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7839327A Expired GB2007686B (en) 1977-07-05 1978-10-04 Multi-arm star copolymers

Country Status (1)

Country Link
GB (1) GB2007686B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029622A2 (en) * 1979-11-16 1981-06-03 Shell Internationale Researchmaatschappij B.V. Modified hydrogenated star-shaped polymer, its preparation and a lubricating oil composition containing the polymer
FR2550207A1 (en) * 1983-08-04 1985-02-08 Shell Int Research PROCESS FOR THE PREPARATION OF OIL-SOLUBLE HYDROGEN MODIFIED STAR POLYMERS
DE3428402A1 (en) * 1983-08-04 1985-02-21 Shell Internationale Research Maatschappij B.V., Den Haag METHOD FOR PRODUCING AN OIL-SOLUBLE STAR-STRUCTURED HYDRATED MODIFIED POLYMER AND ITS USE AS AN OIL ADDITIVE
US5397841A (en) * 1993-12-08 1995-03-14 Shell Oil Company Grafted polymers having reactive groups at the base
EP0684267A1 (en) * 1994-05-27 1995-11-29 Shell Internationale Researchmaatschappij B.V. A method for producing asymmetric radial polymers
CN111630078A (en) * 2018-01-26 2020-09-04 株式会社Lg化学 Block copolymers comprising photoactive moieties

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427834A (en) 1981-12-21 1984-01-24 Shell Oil Company Dispersant-VI improver product

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029622A2 (en) * 1979-11-16 1981-06-03 Shell Internationale Researchmaatschappij B.V. Modified hydrogenated star-shaped polymer, its preparation and a lubricating oil composition containing the polymer
EP0029622A3 (en) * 1979-11-16 1981-06-17 Shell Internationale Research Maatschappij B.V. Modified hydrogenated star-shaped polymer, its preparation and a lubricating oil composition containing the polymer
FR2550207A1 (en) * 1983-08-04 1985-02-08 Shell Int Research PROCESS FOR THE PREPARATION OF OIL-SOLUBLE HYDROGEN MODIFIED STAR POLYMERS
DE3428402A1 (en) * 1983-08-04 1985-02-21 Shell Internationale Research Maatschappij B.V., Den Haag METHOD FOR PRODUCING AN OIL-SOLUBLE STAR-STRUCTURED HYDRATED MODIFIED POLYMER AND ITS USE AS AN OIL ADDITIVE
DE3428400A1 (en) * 1983-08-04 1985-02-21 Shell Internationale Research Maatschappij B.V., Den Haag METHOD FOR PRODUCING AN OIL-SOLUBLE, STAR-SHAPED, STRUCTURED, HYDRATED, MODIFIED POLYMER, AND ITS USE AS AN OIL ADDITIVE
US5397841A (en) * 1993-12-08 1995-03-14 Shell Oil Company Grafted polymers having reactive groups at the base
EP0684267A1 (en) * 1994-05-27 1995-11-29 Shell Internationale Researchmaatschappij B.V. A method for producing asymmetric radial polymers
CN111630078A (en) * 2018-01-26 2020-09-04 株式会社Lg化学 Block copolymers comprising photoactive moieties
EP3736302A4 (en) * 2018-01-26 2021-05-05 Lg Chem, Ltd. Block copolymer comprising photo-sensitive group
JP2021512182A (en) * 2018-01-26 2021-05-13 エルジー・ケム・リミテッド Block copolymer containing photosensitive groups
US11384191B2 (en) 2018-01-26 2022-07-12 Lg Chem, Ltd. Block copolymer containing photo-sensitive moiety
CN111630078B (en) * 2018-01-26 2023-04-07 株式会社Lg化学 Block copolymers comprising photoactive moieties

Also Published As

Publication number Publication date
GB2007686B (en) 1982-03-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee