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首页> 外文期刊>ACS applied materials & interfaces >Visible Light-Induced Plasticity of Shape Memory Polymers
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Visible Light-Induced Plasticity of Shape Memory Polymers

机译：可见光诱导的形状记忆聚合物的可塑性

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摘要

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 denionstrate facile reshaping of the materials. Because visible light can be introduced via various methods, PUs with visible light-induced plasticity have great potential applications.
机译：通过引入可更换粘合来实现热固性聚合物的可塑性，并且塑性主要是通过热量或紫外光触发的。可见光是相对温和的;触发器，其未用于诱导聚合物材料中的可塑性。这里，制造含有二烯酸键合键的热固性聚氨酯（PU），其具有可见光诱导的可塑性以及形状的记忆行为。测试了一种具有不同二烯键粘合物内容物的一系列脓液，其形状记忆性能和可塑性变化。具有更高的五烯化键含量，实现形状记忆和光引起的可塑性。通过组合这两个属性，重塑脓液的永久形状更容易。与热量或UV光相比，可见光具有空间控制的优点。例如，商业投影仪引入了可见光的图案，以表现出材料的容易再塑造。因为可见光可以通过各种方法引入，所以具有可见光诱导的可塑性的PU具有很大的潜在应用。

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