Organo lithium initiator

Details Organo lithium initiator Organo lithium initiator

1975-08-04

1979-06-12

Helfin, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568643, 568648, 568649, 568655, C07C 4106

Patent

active

041580982

ABSTRACT:
Polyalkoxy monovinyl substituted aromatic compounds, such as 3,4-dimethoxystyrene, function as both comonomer and randomizing agent in organolithium initiated copolymerization of a conjugated diene with a monovinyl aromatic compound, such as of butadiene with styrene. The resultant polymeric product exhibits lower levels of block styrene than does a corresponding copolymer made in the absence of the dimethoxystyrene.

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patent: 3377404 (1968-04-01), Zelluski
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patent: 3668263 (1972-06-01), Morrison
patent: 3673166 (1972-06-01), Trepka
patent: 3725368 (1973-04-01), Morrison et al.
patent: 3931107 (1976-01-01), Trepka

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