FR2245686A1 - Polystyrene-polybutadiene block copolymers prodn - by block copolymsg. butadiene and styrene onto living poly-alpha-methyl styrene block, with good thermal stability - Google Patents

Polystyrene-polybutadiene block copolymers prodn - by block copolymsg. butadiene and styrene onto living poly-alpha-methyl styrene block, with good thermal stability

Info

Publication number
FR2245686A1
FR2245686A1 FR7324094A FR7324094A FR2245686A1 FR 2245686 A1 FR2245686 A1 FR 2245686A1 FR 7324094 A FR7324094 A FR 7324094A FR 7324094 A FR7324094 A FR 7324094A FR 2245686 A1 FR2245686 A1 FR 2245686A1
Authority
FR
France
Prior art keywords
block
styrene
alpha
polystyrene
copolymsg
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
FR7324094A
Other languages
French (fr)
Other versions
FR2245686B1 (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.)
VORON V
Original Assignee
VORON V
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 VORON V filed Critical VORON V
Priority to FR7324094A priority Critical patent/FR2245686A1/en
Publication of FR2245686A1 publication Critical patent/FR2245686A1/en
Application granted granted Critical
Publication of FR2245686B1 publication Critical patent/FR2245686B1/fr
Granted legal-status Critical Current

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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
    • C08F297/04—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 polymerising vinyl aromatic monomers and conjugated dienes

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)
  • Graft Or Block Polymers (AREA)

Abstract

Thermally stable block copolymers of the type ABC, where A is a poly-alpha-methyl styrene block, B is a polybutadiene block and C is a polystyrene block are made by polymerising the alpha-methyl-styrene either in the mass or in a hydrocarbon soln, using a concn of not less than 50 wt.% in the presence of sec. butyl lithium at a temp. of 0-50 degrees C whereby a living block A is produced onto which a diene hydrocarbon block and styrene is polymerised at 40-80 degrees C.
FR7324094A 1973-06-29 1973-06-29 Polystyrene-polybutadiene block copolymers prodn - by block copolymsg. butadiene and styrene onto living poly-alpha-methyl styrene block, with good thermal stability Granted FR2245686A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7324094A FR2245686A1 (en) 1973-06-29 1973-06-29 Polystyrene-polybutadiene block copolymers prodn - by block copolymsg. butadiene and styrene onto living poly-alpha-methyl styrene block, with good thermal stability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7324094A FR2245686A1 (en) 1973-06-29 1973-06-29 Polystyrene-polybutadiene block copolymers prodn - by block copolymsg. butadiene and styrene onto living poly-alpha-methyl styrene block, with good thermal stability

Publications (2)

Publication Number Publication Date
FR2245686A1 true FR2245686A1 (en) 1975-04-25
FR2245686B1 FR2245686B1 (en) 1976-06-18

Family

ID=9121845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7324094A Granted FR2245686A1 (en) 1973-06-29 1973-06-29 Polystyrene-polybutadiene block copolymers prodn - by block copolymsg. butadiene and styrene onto living poly-alpha-methyl styrene block, with good thermal stability

Country Status (1)

Country Link
FR (1) FR2245686A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603668A1 (en) * 1992-12-22 1994-06-29 Bridgestone Corporation Process for the preparation of in situ dispersion of copolymers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603668A1 (en) * 1992-12-22 1994-06-29 Bridgestone Corporation Process for the preparation of in situ dispersion of copolymers

Also Published As

Publication number Publication date
FR2245686B1 (en) 1976-06-18

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