Process for preparing optically active polymer

Details Process for preparing optically active polymer Process for preparing optically active polymer

1984-08-10

1985-11-19

Henderson, Christopher A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526173, 526180, 526181, 526183, 526185, 526189, 526328, 526265, 5263031, C08F 446, C08F 450, C08F 452

Patent

active

045543348

ABSTRACT:
An optically active polymer is obtained by polymerizing a vinyl monomer in the presence of a catalyst which comprises an asymmetric ligand compound of the formula (I) or (II): ##STR1## in which R.sub.1 and R.sub.4 each are --O--R.sub.7, --S--R.sub.7, ##STR2## R.sub.2, R.sub.3, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 each are an alkyl group having 1 to 10 carbon atoms; X is hydrogen, an alkyl group having 1 to 10 carbon atoms or a halogen; and n is a number of 1 to 4; and an anionic initiator to form a complex with said ligand compound.

REFERENCES:
patent: 4107418 (1978-08-01), Yatsu
patent: 4230841 (1980-10-01), Prudence

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