Process for the preparation of alternating copolymers perpared f

Details Process for the preparation of alternating copolymers perpared f Process for the preparation of alternating copolymers perpared f

1990-10-26

1993-08-24

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526192, 526221, 526230, 5262305, 5262321, 526235, 526342, 526237, C08F 410, C08F22044

Patent

active

052390241

ABSTRACT:
The invention relates to a process for the preparation of alternating copolymers from unsaturated polar compounds and olefins in the presence of complexing agents, in which the complexing agent comprising the primarily formed copolymer/metal compound complex can be recovered in a simple manner and in reusable form.
The copolymerization is carried out in the presence of salts, such as nitrates, but preferably halides, of divalent metal ions as the complexing agent in organic solvents at pressures of up to about 100 bar and at temperatures between -78.degree. C. and 100.degree. C. with the use of free-radical initiators.
The reaction product is a mixture of the copolymer of a strictly alternating structure of unsaturated polar compounds and olefin, and of a copolymer which is higher in the unsaturated polar compound. The alternating copolymer can be easily separated therefrom by extraction with solvents, such as trichloromethane or acetone.

REFERENCES:
patent: 2464062 (1949-03-01), Strain
patent: 3183217 (1965-05-01), Serniuk et al.
patent: 3814734 (1974-06-01), Kawasumi et al.
patent: 3864319 (1975-02-01), Gaylord
Ikegami et al., "Polymerization of Coordinated Monomers . . . ", J. Poly. Sci., Pt. A-1, 8, 195 (1970).
Gaylord, "Donor-Acceptor Complexes In Copolymerization . . . ", Poly, Preprints, 11, 27 (1970).
Gaylord et al., "Preparation of Alternating Copolymers in the Presence of Metal Halides . . . ", Polym. Letters 9, 97-102 (1971).

Affiliated with

Also associated with

Rating

Process for the preparation of alternating copolymers perpared f does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of alternating copolymers perpared f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of alternating copolymers perpared f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-830034