Abstract：
Polymerization in the solid state is generally infeasible due to restrictions on mobility. However, in this work, the solid-state photopolymerization of crystalline dicyclopentadiene is demonstrated via photoinitiated ring-opening metathesis polymerization. The source of mobility in the solid state is attributed to the plastic crystal nature of dicyclopentadiene, which yields local short-range mobility due to orientational degrees of freedom. Polymerization in the solid state enables photopatterning, volumetric additive manufacturing of free-standing structures, and fabrication with embedded components. Solid-state photopolymerization of dicyclopentadiene offers a new paradigm for advanced and freeform fabrication of high-performance thermosets.
摘要：
由于对流动性的限制,在固态下的聚合通常是不可行的。然而,在这项工作中，结晶二环戊二烯的固态光聚合通过光引发的开环易位聚合得到证实。固态迁移率的来源归因于双环戊二烯的塑性晶体性质，由于定向自由度而产生局部短程移动性。固态聚合能够实现光图案化，独立结构的体积增材制造，和制造与嵌入式组件。二环戊二烯的固态光聚合为高性能热固性材料的先进和自由成型制造提供了新的范例。
