Terminal amine-containing polypivalolactone
First Claim
1. A terminal amine-containing polypivalolactone of the formula ##STR8## in which R is H or lower alkyl,Y is ##STR9## where p is 1 to 5, andA is phenylene, (lower alkyl)phenylene, di(lower alkyl)phenylene, naphthylene or biphenylene, n is 2 to 1000,m is 0 or 1, andX is H, alkali metal or R'"'"'4 N where R'"'"' is lower alkyl.
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Abstract
Terminal amine-containing polypivalolactones of the formula ##STR1## IN WHICH R is H or lower alkyl,
Y is ##STR2## where P IS 1 TO 5, AND
A is an aromatic hydrocarbon,
n is 2 to about 1000,
m is 0 or 1, and
X is H, alkali metal or R'"'"'4 N where R'"'"' is lower alkyl are useful for preparing block copolymers and graft copolymers. These terminal amine-containing polypivalolactones are prepared by polymerizing pivalolactone in the presence of a nitrogen-containing initiator such as a tetraalkylammonium p-aminophenylacetate.
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Citations
6 Claims
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1. A terminal amine-containing polypivalolactone of the formula ##STR8## in which R is H or lower alkyl,
Y is ##STR9## where p is 1 to 5, and A is phenylene, (lower alkyl)phenylene, di(lower alkyl)phenylene, naphthylene or biphenylene, n is 2 to 1000, m is 0 or 1, and X is H, alkali metal or R'"'"'4 N where R'"'"' is lower alkyl.
Specification