Preparation of alkyl methacrylate monomers for anionic polymeriz

Details Preparation of alkyl methacrylate monomers for anionic polymeriz Preparation of alkyl methacrylate monomers for anionic polymeriz

1989-06-12

1989-12-26

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526173, 526177, 526178, 526180, 526312, 526320, 526327, 5263297, 526328, C08F 446, C08F 1812, C08F 1802

Patent

active

048899003

ABSTRACT:
A process is disclosed for treatment of alkyl methacrylate monomers for subsequent polymerization by an anionic initiator to produce a polymer with a molecular weight distribution between about 1.20 and about 1.01. The process involves treatment of the monomer with an aluminum hydrocarbyl or boron hydrocarbyl in quantities which permit polymerization in the presence of the by-products of the reaction between the impurities and the aluminum hydrocarbyl or boron hydrocarbyl.

REFERENCES:
patent: 4388448 (1983-06-01), Melby
patent: 4417034 (1983-11-01), Webster
Long et al., Anionic Synthesis and Characterization of Various Poly(Alkyl Methacrylates), Polymer Preparation, 27(2), 258 (1986).
Long et al., Synthesis and Characterization of Ion-Containing Block Copolymers by Anionic Techniques, Polymer Preprints 28(1), 384 (1987).
Allen et al., Synthesis of Tactic Poly(Alkyl Methacrylate) Homo and Copolymers, Advances in Polymer Synthesis, 347 (1985).
Allen et al., Studies on the Synthesis of Novel Block Ionomers, ACS Symposium Series, 302, 79 (1986).
Anderson, "Speed" Marvel at DuPont, J. Macromol. Sci.-Chem., A21, 1665-1687, (1984).
T. E. Long, PhD Dissertation, Virginia Polytechnic Institute and State University, (1987).

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