Modified dense star polymers

Details Modified dense star polymers Modified dense star polymers

1988-02-08

1989-08-15

Lieberman, Allan M.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525309, 525310, 525410, 525416, 525418, 525451, 528310, 528350, 528363, 528373, 528332, 528374, C08G 6900

Patent

active

048575992

ABSTRACT:
Dense star polymers on immobilized cores are very useful as ion-exchange resins and chelation resins. For example, an aminated form of chloromethylated styrene/divinyl benzene copolymer can be employed as an immobilized core compound and reacted successively with methyl acrylate via a Michael addition reaction and then with ethylenediamine to form a first generation dense star polymer or dendrimer. These reactions can then be repeated to form second and third generation dendrimers.

REFERENCES:
patent: 4501466 (1985-03-01), Tomalia et al.
patent: 4558120 (1985-12-01), Tomalia et al.
patent: 4587329 (1986-05-01), Tomalia et al.
patent: 4631337 (1986-12-01), Tomalia et al.
patent: 4737550 (1988-04-01), Tomalia

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