Alkenylation of monovinyl aromatic polymers

Details Alkenylation of monovinyl aromatic polymers Alkenylation of monovinyl aromatic polymers

1979-07-20

1981-03-24

Hamrock, William F.

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

Synthetic resins

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

260 42, 260 4215, 260 4216, 260 4232, 526173, 526180, 525313, 525356, 525359, 525362, 525371, C08F 802

Patent

active

042581508

ABSTRACT:
Monovinyl aromatic polymers are modified by reacting with elemental alkali metal and a conjugated diene to produce polymers having branches containing olefinic unsaturation. The olefinically unsaturated branches provide reactive sites which are readily reacted with various substances to obtain numerous variations in the properties of the monovinyl aromatic polymers.

REFERENCES:
patent: 3231635 (1966-01-01), Holden et al.
patent: 3287333 (1966-11-01), Zelinski
patent: 3459832 (1969-08-01), Kern
patent: 3492369 (1970-01-01), Naylor
patent: 3534012 (1970-10-01), Dennis
patent: 3817967 (1974-06-01), Mace et al.
patent: 3847834 (1974-11-01), Dennis
"Metalation of Polystyrene," Morton et al., J. Org. Chem. 24,-1167-1169, (1959).

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