Additive manufacturing (AM) technologies are expanding the boundaries of materials science and providing an exciting forum for interdisciplinary research. The ability to fabricate arbitrarily complex objects has made AM technologies indispensable in personalized healthcare, soft electronics, and renewable energy. At the intersection of AM technologies and materials chemistry are stimuli-responsive polymers, which change their chemical and physical properties in response to specific environmental cues. The responsiveness of these “smart” polymers makes them suitable for AM and provides functionality to the additively manufactured objects. Furthermore, the type and degree of stimulus response of smart polymers can be regulated through precise synthetic design or via incorporation of additives. Herein, we review recently reported stimuli-responsive polymers used in AM, with a focus on the design and chemistry of the polymers. The materials are broadly classified by type of printing, and more specifically classified by type of stimulus response. Finally, we briefly consider existing challenges that stimuli-responsive materials in AM can address in the future.

增材制造（AM）技术正在扩展材料科学的领域，并为跨学科研究提供了一个令人兴奋的论坛。制造任意复杂物体的能力使增材制造技术在个性化医疗保健，软电子和可再生能源中必不可少。在增材制造技术和材料化学的交汇处，是刺激响应性聚合物，可根据特定的环境提示改变其化学和物理性质。这些“智能”聚合物的响应能力使其适用于增材制造，并为增材制造的物体提供功能。此外，可以通过精确的合成设计或通过掺入添加剂。本文中，我们回顾了最近报道的AM中使用的刺激反应性聚合物，重点是聚合物的设计和化学性质。根据印刷类型对材料进行大致分类，更具体而言，根据刺激响应的类型对​​材料进行分类。最后，我们简要考虑了AM中刺激响应材料可以解决的现有挑战。