Bulk anionic polymerization process using an alkali metal amide

Details Bulk anionic polymerization process using an alkali metal amide Bulk anionic polymerization process using an alkali metal amide

1978-11-06

1981-01-06

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526178, 526181, 526265, 526293, 526211, 526328, 526346, 526336, 526314, 526335, C08F 448

Patent

active

042437873

ABSTRACT:
The invention relates to a process for the anionic polymerization and copolymerization of vinyl, dienic and heterocyclic monomers.
According to the invention, the process consists in carrying out the reaction in the presence of an initiator consisting of a molecular combination of an alkali metal amide and the salt of the same alkali metal with at least one hydroxylic compound and in the absence of solvent. The initiator can be prepared by intimately mixing its constituents or in the presence of a solvent of low polarity which is subsequently evaporated off, or in situ in the monomer.
Application to the synthesis of special or widely used polymers and copolymers.

REFERENCES:
patent: 2849432 (1958-08-01), Kibler et al.
patent: 3935177 (1976-01-01), Muller et al.
Textbook of Polymer Chemistry by Billmeyer, p. 318, 1970, 2nd Ed.

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