NL7514279A - Polymerization of water-sol monomers using radiation - and chemical initiator, terminating radiation before end of polymerisation - Google Patents

Polymerization of water-sol monomers using radiation - and chemical initiator, terminating radiation before end of polymerisation

Info

Publication number
NL7514279A
NL7514279A NL7514279A NL7514279A NL7514279A NL 7514279 A NL7514279 A NL 7514279A NL 7514279 A NL7514279 A NL 7514279A NL 7514279 A NL7514279 A NL 7514279A NL 7514279 A NL7514279 A NL 7514279A
Authority
NL
Netherlands
Prior art keywords
water
sol
polymerisation
radiation
polymer
Prior art date
Application number
NL7514279A
Other languages
Dutch (nl)
Other versions
NL185213C (en
NL185213B (en
Original Assignee
Hercules Inc
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 Hercules Inc filed Critical Hercules Inc
Priority to NL7514279A priority Critical patent/NL185213C/en
Publication of NL7514279A publication Critical patent/NL7514279A/en
Publication of NL185213B publication Critical patent/NL185213B/en
Application granted granted Critical
Publication of NL185213C publication Critical patent/NL185213C/en

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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
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/54—Polymerisation initiated by wave energy or particle radiation by X-rays or electrons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Water sol. linear, high mol. wt. polymers are prepd. by irradiating an aq. soln. of 10-60 wt.% of a water-sol ethylenically unsatd. monomer(s) of formula: (where R=H, CH3 or C2H5 and Y=-NH2, -OM, where M=a cation, R, R2 and R3 are 1-4C alkyl, and X=an anion ) and 5-5000 ppm of a free-radical initiator having a dissociation constant of above 1 x 10-4 recip. secs. at 100 degrees C, acting or effective mainly between 50 and 100 degrees C. Radiation intensity is from 1000 to 1,000,000 rads/hr. to a dose of 1000 to 150,000 rads. nd is terminated before formation of water-insol. polymer in the reaction mass, allowing chemically induced polymerisation to continue. 30-95 wt.% of the unsatd. monomer initially present is converted to water-sol. polymer before termination of radiation. In producing water-sol. polymers in the form of a pourable liquid or a non-pourable rubbery gel. Termination of radiation before completing the polymerisation avoids any cross linking of the polymer. As the polymerisation reactions are exothermic and sufficient temp. is reached to induce chemically initiated polymerisation, this will continue until almost all of the monomer is converted to polymer.
NL7514279A 1975-12-08 1975-12-08 METHOD FOR PREPARING WATER-SOLUBLE, MAINLY LINEAR POLYMERS, AND FORMED PRODUCT, WHICH IS PREPARED IN PART OR IN PART. NL185213C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7514279A NL185213C (en) 1975-12-08 1975-12-08 METHOD FOR PREPARING WATER-SOLUBLE, MAINLY LINEAR POLYMERS, AND FORMED PRODUCT, WHICH IS PREPARED IN PART OR IN PART.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7514279A NL185213C (en) 1975-12-08 1975-12-08 METHOD FOR PREPARING WATER-SOLUBLE, MAINLY LINEAR POLYMERS, AND FORMED PRODUCT, WHICH IS PREPARED IN PART OR IN PART.

Publications (3)

Publication Number Publication Date
NL7514279A true NL7514279A (en) 1977-06-10
NL185213B NL185213B (en) 1989-09-18
NL185213C NL185213C (en) 1990-02-16

Family

ID=19824988

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7514279A NL185213C (en) 1975-12-08 1975-12-08 METHOD FOR PREPARING WATER-SOLUBLE, MAINLY LINEAR POLYMERS, AND FORMED PRODUCT, WHICH IS PREPARED IN PART OR IN PART.

Country Status (1)

Country Link
NL (1) NL185213C (en)

Also Published As

Publication number Publication date
NL185213C (en) 1990-02-16
NL185213B (en) 1989-09-18

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BA A request for search or an international-type search has been filed
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BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee