Lactam polymerization initiators.

摘要

Disclosed are lactam polymerization ini­tiators comprising at least two lactam terminal groups of the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="15" wi="45" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" /></Chemistry> wherein Q is a lactam residue containing a C₃ to C₁₁ alkylene group and is bonded to a carbonyl through the nitrogen atom of the lactam; A is an aliphatic or aromatic hydrocarbyl or hydrocarbyl ether group;
m is 0 or 1; whem m is 0, n is 0 or 1 and p is 1;
when m is 1, n is in the range of 1 to 3 and p = n;
and an elastomeric backbone derived from a telechelic polyamine containing at least two primary or secondary amine groups. Also disclosed are a process for forming the same; nylon block copolymers produced therefrom;
and a process for the polymerization thereof.