Polyfunctional nitrogen oxide mediated polymerization initiators and products formed therefrom

In some aspects, the disclosure relates to multi-arm polymers comprising a core and a plurality of polymer segments having a first end covalently attached to the core and (a) a second end comprising a moiety comprising reactive end groups wherein the polymer segments comprise one or more hydrophilic aprotic NMP polymerizable monomers, and wherein the reactive multi-arm polymer comprises a nitroxide radical, or (b) a second end comprising a moiety comprising an alkoxyamine group wherein the core is a polyol residue, and wherein the polymer segment comprises one or more NMP-polymerizable monomers. In some aspects, the disclosure relates to a multifunctional alkoxyamine molecule comprising a core and a plurality of alkoxyamine groups covalently attached to the core, where the core is a polyol residue. 在一些方面，本公开涉及多臂聚合物，其包含核和多个聚合物链段，所述聚合物链段具有与核共价连接的第一端和(a)包含含有反应性端基的部分的第二端，其中聚合物链段包含一种或多种亲水性非质子NMP可聚合单体，并且其中反应性多臂聚合物包含氮氧自由基，或(b)包含含有烷氧基胺基团的部分的第二端，其中核是多元醇残基，并且其中聚合物链段包含一种或多种NMP-可聚合单体。在一些方面，本公开涉及一种多官能烷氧基胺分子，其包含核和多个共价连接至核的