申请人:Brown Bruce Sterling
公开号:US20080097040A1
公开(公告)日:2008-04-24
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.
在各种实施方式中,本发明包括2,4,6-三取代-1,3,5-三嗪封端剂,其中包括一个、两个或三个离去基团作为取代基,其余取代基基本上对与聚合物或单体上的亲核基反应无反应性,或者与聚合物或单体上的亲核基反应速率比任何离去基团慢。本发明还包括具有嘧啶基团封端的聚合物或单体。本发明的其他实施方式还包括用嘧啶类封端剂封闭聚合物或单体中的亲核基的过程,其中包括将聚合物或单体与含三嗪的封端剂结合并反应。