Multi-arm polymers comprising radically polymerizable monomers

In some aspects, the present disclosure is directed to multi-arm polymers comprising a core, a plurality of polymer segments having a first end covalently bonded to the core and a second end comprising a group of a reactive group, where the polymer segments comprise one or more radically polymerizable monomers. In some aspects, systems are provided that include a first composition and a second composition, the first composition including such a multi-arm polymer and the second composition including a polyfunctional compound that includes a functional group that is reactive with a reactive group of the multi-arm polymer. In some aspects, systems are provided that include a cross-linking reaction product of such multi-arm polymers with such polyfunctional compounds. 在一些方面，本公开是关于包括核、多个聚合物链段的多臂聚合物，多个聚合物链段具有以共价键连接到核的第一端和包含反应基的基团的第二端，其中聚合物链段包含一种或多种自由基可聚合单体。在一些方面，提供包括第一组合物和第二组合物的系统，第一组合物包含这种多臂聚合物并且第二组合物包含多官能团化合物，该多官能团化合物包括与多臂聚合物的反应基有反应性的官能团。在一些方面，提供包括这种多臂聚合物与这种多官能团化合物的交联反应产物的系统。