GB2010292A - Three block copolymers - Google Patents

Three block copolymers

Info

Publication number
GB2010292A
GB2010292A GB7848344A GB7848344A GB2010292A GB 2010292 A GB2010292 A GB 2010292A GB 7848344 A GB7848344 A GB 7848344A GB 7848344 A GB7848344 A GB 7848344A GB 2010292 A GB2010292 A GB 2010292A
Authority
GB
United Kingdom
Prior art keywords
block
copolymers
polystyrene
monomer
plastomeric
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
GB7848344A
Other versions
GB2010292B (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.)
Anic SpA
Original Assignee
Anic SpA
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 Anic SpA filed Critical Anic SpA
Priority to GB7848344A priority Critical patent/GB2010292B/en
Publication of GB2010292A publication Critical patent/GB2010292A/en
Application granted granted Critical
Publication of GB2010292B publication Critical patent/GB2010292B/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
    • C08F297/06—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 coordination type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerization Catalysts (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

Three-block copolymers of the type ABA and ABC are disclosed in which A and C are plastomeric polymeric blocks and B is an elastomeric saturated polymeric block. The copolymers may be produced by first polymerizing the monomer for block A using a Lewis Acid catalyst and a catalytic amount of isobutene in such a way to keep alive the active centres in the chain ends for a time sufficient to permit the addition of the second monomer to produce block B, whereafter, with the aid of a particular catalyst preferably an alkyl aluminium halide, the growth of the third block A, or C, can be carried out. The copolymers e.g. polystyrene - polyisobutene - polystyrene, are resistant to oxidation, have elastomeric properties under certain conditions and have plastomeric properties under other conditions.
GB7848344A 1978-12-13 1978-12-13 Three-block copolymers and process for their production Expired GB2010292B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7848344A GB2010292B (en) 1978-12-13 1978-12-13 Three-block copolymers and process for their production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7848344A GB2010292B (en) 1978-12-13 1978-12-13 Three-block copolymers and process for their production

Publications (2)

Publication Number Publication Date
GB2010292A true GB2010292A (en) 1979-06-27
GB2010292B GB2010292B (en) 1982-04-28

Family

ID=10501701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7848344A Expired GB2010292B (en) 1978-12-13 1978-12-13 Three-block copolymers and process for their production

Country Status (1)

Country Link
GB (1) GB2010292B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009135877A1 (en) * 2008-05-07 2009-11-12 Basf Se Diblock copolymer-substituted succinic acid derivatives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009135877A1 (en) * 2008-05-07 2009-11-12 Basf Se Diblock copolymer-substituted succinic acid derivatives

Also Published As

Publication number Publication date
GB2010292B (en) 1982-04-28

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Legal Events

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