Patent ID: 6642318
Filing Date: 2003-11-04
Classification: C07C,C07D,C08F

Abstract:
A process for producing a polymer, said process comprising polymerizing a monomer mix into said polymer in the presence of a source of free radicals and a chain transfer agent having a transfer constant in the range of from 0.1 to 5000, said chain transfer agent having the following formula: wherein when D is D1 of the following formula: then p is in the range of from 1 to 200, E is Zâ€² and said transfer agent is of the following formula: wherein when D is D2 of the following formula: then p is in the range of from 1 to 200, E is E1 or E2 and said transfer agent is of the following formula: wherein when D is D3 of the following formula: then pâ€² is in the range of from 2 to 200, E is Z, E1 or E2 and said transfer agent is of the following formula: wherein when D is D4 of the following formula:â€”Sâ€”Râ€²then E is E3 or E4 and said transfer agent is of the following formula: where in all of the above:R is a p-valent moiety derived from a moiety selected from the group consisting of substituted or unsubstituted alkane, substituted or unsubstituted alkene, substituted or unsubstituted arene, unsaturated or aromatic carbocyclic ring, unsaturated or saturated heterocyclic ring, an organometallic species, and a polymer chain, R. being a free radical leaving group resulting from R that initiates free radical polymerization; R* and Râ€² are monovalent moieties independently selected from the group consisting of a substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aryl, unsaturated or aromatic carbocyclic ring, unsaturated or saturated heterocyclic ring, substituted or unsubstituted alkylthio, substituted or unsubstituted alkoxy, substituted or unsubstituted dialkylamino, an organometallic species, and a polymer chain, R*. being a free radical leaving group resulting from R* that initiates free radical polymerization; X is selected from the group consisting of a substituted or unsubstituted methine, nitrogen, and a conjugating group; Zâ€² is selected from the group consisting of E1, E2, halogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted alkylthio, substituted or unsubstituted alkoxycarbonyl, substituted or unsubstituted â€”COORâ€³, carboxy, substituted or unsubstituted â€”CONRâ€³2, cyano, â€”P(&boxH;O)(ORâ€³)2, â€”P(&boxH;O)Râ€³2; wherein Râ€³ is selected from the group consisting of substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aralkyl, substituted or unsubstituted alkaryl, and a combination thereof; Zâ€³ is a pâ€²-valent moiety derived from a moiety selected from the group consisting of a substituted or unsubstituted alkane, substituted or unsubstituted alkene, substituted or unsubstituted arene, substituted or unsubstituted heterocycle, a polymer chain, an organometallic species, and a combination thereof; Z is selected from the group consisting of a halogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted alkylthio, substituted or unsubstituted alkoxycarbonyl, substituted or unsubstituted â€”COORâ€³, carboxy, substituted or unsubstituted â€”CONRâ€³2, cyano, â€”P(&boxH;O)(ORâ€³)2, â€”P(&boxH;O)Râ€³2; E1 is a substituent functionality derived from a substituted or unsubstituted heterocycle attached via a nitrogen atom or is of the following formula: â€ƒwherein G and J are independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkoxy, substituted or unsubstituted acyl, substituted or unsubstituted aroyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkylsulfonyl, substituted or unsubstituted alkylsulfonyl, substituted or unsubstituted alkylphosphonyl, substituted or unsubstituted arylsulfonyl, substituted or unsubstituted arylsulfinyl, substituted or unsubstituted arylphosphonyl; E2 is of the following formula: â€ƒwherein Gâ€² is selected from the group consisting of substituted or unsubstituted alkenyl, substituted or unsubstituted aryl; E3 is of the following formula â€ƒwherein pâ€²â€³ is between 2 and 200, Gâ€³ is Zâ€³ and Jâ€² is independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkoxy, substituted or unsubstituted acyl, substituted or unsubstituted aroyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkylsulfonyl, substituted or unsubstituted alkylsulfonyl, substituted or unsubstituted alkylphosphonyl, substituted or unsubstituted arylsulfonyl, substituted or unsubstituted arylsulfinyl, substituted or unsubstituted arylphosphonyl or is joined to Gâ€³ so as to form a 5-8 membered ring; and E4 is of the following formula â€ƒwherein pâ€²â€³ is between 2 and 200 and Gâ€²â€³ is Zâ€².