Visible Light-Induced Plasticity of Shape Memory Polymers,ACS Applied Materials & Interfaces

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Visible Light-Induced Plasticity of Shape Memory Polymers
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-09-18 00:00:00 , DOI: 10.1021/acsami.7b11188
Shaobo Ji ₁ , Fuqiang Fan ₁ , Chenxing Sun ₁ , Ying Yu ₁ , Huaping Xu ₁

Affiliation

Plasticity of thermoset polymers has been realized by introducing exchangeable bonds, and the plasticity is mostly triggered via heat or UV light. Visible light is a relatively mild trigger that has not been used to induce plasticity in polymer materials. Herein, thermoset polyurethanes (PUs) containing diselenide bonds are fabricated that possess visible light-induced plasticity along with shape memory behavior. A series of PUs with different diselenide bond contents were tested and their shape memory properties and plasticity varied. With a higher diselenide bond content, both shape memory and light-induced plasticity are achieved. By combining these two properties, reshaping the permanent shapes of the PUs is easier. Compared with heat or UV light, visible light has the advantage of spatial control. For instance, a pattern of visible light was introduced by a commercial projector to demonstrate facile reshaping of the materials. Because visible light can be introduced via various methods, PUs with visible light-induced plasticity have great potential applications.

中文翻译：

形状记忆聚合物的可见光诱导可塑性

热固性聚合物的可塑性是通过引入可交换键来实现的，可塑性主要是通过加热或紫外线来触发的。可见光是一种相对温和的触发器，尚未用于诱发聚合物材料的可塑性。在此，制造了具有二硒键的热固性聚氨酯（PU），其具有可见光诱导的可塑性以及形状记忆行为。测试了一系列具有不同二硒键含量的聚氨酯，它们的形状记忆性能和可塑性也有所不同。通过较高的二硒化物键含量，可以实现形状记忆和光诱导可塑性。通过结合这两个属性，可以更轻松地重塑PU的永久形状。与热或紫外线相比，可见光具有空间控制的优势。例如，商用投影仪引入了可见光图案，以演示对材料的轻松整形。由于可见光可以通过各种方法引入，因此具有可见光诱导可塑性的聚氨酯具有巨大的潜在应用。

更新日期：2017-09-18

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