Triazine compounds, polymers comprising triazine structural units, and method
View Patent ↗In various embodiments the present invention comprises 2,4,6-trisubstituted-1,3,5-triazine capping agents comprising one, two, or three leaving groups as substituents with any remaining substituents being essentially inert to reaction with a nucleophilic group on a polymer or monomer, or reactive with a nucleophilic group on a polymer or monomer at a slower rate than any leaving group. The invention also comprises polymers or monomers with nucleophilic groups capped with a triazine moiety. Still other embodiments of the invention comprise processes for capping nucleophilic groups in a polymer or monomer which comprises combining and reacting the polymer or monomer with a triazine-comprising capping agent.
1. A polymer with nucleophilic groups capped with a triazine moiety comprising at least one vinyl, allyl, or propargyloxy group, or olefinic group of formula (VII; Fu 1 ):
wherein R 1 is alkyl or aryl; and R 2 is hydrogen, alkyl, or aryl, wherein the polymer is a triazine moiety capped hydroxyy-terminated poly (phenylene ether) or a triazine moiety capped hydroxy-terminated polycarbonate, and wherein the polymer does not comprise triazine-containing moiety as a structural unit in the polymer chain other than at a terminal site.
2. The polymer of claim 1 wherein the triazine moiety comprises at least one vinyl, allyl, allyloxy, 2-allylphenoxy, 4-allylphenoxy, 4-ethenylphenoxy, cinnamyloxy, 4-allyl-2-methoxyphenoxy, or propargyloxy group.
3. The polymer of claim 1 in which the nucleophilic groups capped are hydroxy or amino groups.
4. The polymer of claim 1 which is a poly(phenylene ether) comprising 2,6-dimethylphenylene structural units.
5. The polymer of claim 1 which is a polycarbonate comprising bisphenol A structural units.
6. A polymer with nucleophilic groups capped with a triazine moiety comprising at least one vinyl, allyl, or propargyloxy group or olefinic group of formula (VII; Fu 1 ):
wherein R 1 is alkyl or aryl; and R 2 is hydrogen, alkyl or aryl, wherein the polymer is a poly (phenylene ether) comprising 2-6-dimethyl phenylene structural units.