Described herein are embodiments of compositions and methods relating to three-dimensional (3D) printing. Some embodiments are directed to a composition comprising a polymer with one or more dormant functional groups. According to some embodiments, the polymer may be formed through a controlled radical polymerization method. Some embodiments are directed to a composition comprising a polymer with one or more pendent crosslinkable groups. In some cases, the composition may be used as an “ink” for 3D printing. For example, the composition may be injected into a medium. The composition and/or medium may, in some embodiments, further comprise an initiator and/or a crosslinker. After injection of the composition into the medium, the one or more dormant functional groups and/or one or more pendent crosslinkable groups may be activated, and the polymer may be crosslinked. In certain cases, the crosslinked polymer may be removed from the medium to produce a freestanding three-dimensional structure.
本文描述的是与三维(3D)打印有关的组合物和方法的实施例。一些实施例涉及一种组合物,该组合物包含具有一个或多个休眠官能团的
聚合物。根据某些实施例,
聚合物可通过受控自由基聚合方法形成。一些实施例涉及一种组合物,该组合物包含具有一个或多个可悬垂交联基团的
聚合物。在某些情况下,该组合物可用作 3D 打印的 "墨
水"。例如,可将组合物注入介质中。在某些实施例中,组合物和/或介质可进一步包含
引发剂和/或
交联剂。将组合物注入介质后,一个或多个休眠官能团和/或一个或多个悬垂可交联基团可被激活,
聚合物可被交联。在某些情况下,可将交联
聚合物从介质中移除,以产生独立的三维结构。