Patent ID: 6680362
Filing Date: 2004-01-20
Classification: C08F

Abstract:
A controlled radical polymerization initiator comprising:a compound of the formula: â€ƒwherein X is an H, an alkyl group, a cycloalkyl group, a heterocyclic group, an arenyl group, an aryl group, a nitrile, an acyl group or the residue of a free-radical initiator; R1 is H, an alkyl group, a cycloalkyl group, a heterocyclic group, an arenyl group or an aryl group; ON(R2)2 is the residue of an organonitroxide; R3 and R4 are each independently selected from an alkyl, a cycloalkyl group, an aryl group, an arenyl group, or R3 and R4 taken together with the carbon to which they are attached form a carbocyclic ring; Q is a linking group selected from a covalent bond, (â€”CH2â€”)o, â€”COâ€”Oâ€”(CH2)oâ€”, â€”COâ€”Oâ€”(CH2CH2O)oâ€”, â€”COâ€”NR6â€”(CH2)oâ€”, â€”COâ€”Sâ€”(CH2)oâ€”, where o is 1 to 12, and R6 is H, an alkyl group, a cycloalkyl group, an arenyl group, a heterocyclic group or an aryl group; each n is 0 or 1; m is 0to 20; q is 0 or 1; q is 0 or 1; Z is O, S or NR6, wherein R6 is H, an alkyl group, a cycloalkyl group, an arenyl group, a heterocyclic group or an aryl group; R5 is an organic or inorganic moiety and has a valency of p.