Polymers of conjugated dienes which have terminal conjugated uns

Details Polymers of conjugated dienes which have terminal conjugated uns Polymers of conjugated dienes which have terminal conjugated uns

1979-07-10

1981-03-24

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 82, 525130, 525153, 525154, 525242, 525285, 525288, 525292, 525297, 525316, 525354, 525356, 525359, 525374, 525381, 525383, 525384, 525385, 525386, C08F 448, C08C 1932, C08C 1930, C08C 1940

Patent

active

042581621

ABSTRACT:
Alicyclic organomonolithium compounds having delocalized conjugated unsaturation are effective initiators in the preparation of polymers of conjugated dienes. Polymers of conjugated dienes, prepared with or without the alicyclic organomonolithium compounds, are terminated with alicyclic compounds having conjugated unsaturation. Either or both approaches can be used to provide polymers containing alicylic conjugated unsaturated functional groups. Alternatively, polymers prepared from the alicyclic organomonolithium compounds can be coupled to produce linear or branched polymers. Polymers prepared from multichelic lithium compounds also can be terminated with alicyclic conjugated unsaturated compounds.

REFERENCES:
patent: 3560593 (1971-02-01), Hsieh
patent: 3734972 (1973-05-01), Naylor et al.
patent: 3884889 (1975-05-01), Hsieh
Rec. Trav. Chim. 95; 225 (1976); Journal of Royal Netherlands Chem. Soc., Nieuwstad et al.
Ionic Polymerization, (Furukawa et al.), Dekker Inc. 1976, "Dienes Bearing Allylic Protons"; Yasuda et al.
Jour. Pol. Sci. Part B, (Polymer Letters), 10; 17-22, (1972).

Affiliated with

Also associated with

Rating

Polymers of conjugated dienes which have terminal conjugated uns does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymers of conjugated dienes which have terminal conjugated uns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymers of conjugated dienes which have terminal conjugated uns will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2408852