Light-Induced Crystalline Size Heterogeneity of Polymers Enables Programmable Writing, Morphing, and Mechanical Performance Designing,ACS Macro Letters

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Light-Induced Crystalline Size Heterogeneity of Polymers Enables Programmable Writing, Morphing, and Mechanical Performance Designing
ACS Macro Letters ( IF 5.1 ) Pub Date : 2022-05-19 , DOI: 10.1021/acsmacrolett.2c00237
Mengru Ding ₁ , Wenhua Yuan ₁ , Shanshan Xu ₁ , Chengtao Yu _{1,

2} , Ying Zheng _{1,

2} , Jian Zhou _{1,

2} , Guorong Shan _{1,

2} , Yongzhong Bao _{1,

2} , Pengju Pan _{1,

2}

Affiliation

Constructing the spatio-selective crystalline structures has been an effective strategy to diversify the functions and applications of polymers. However, it is still challenging to program the crystalline heterogeneity into commercialized polymers and realize associate functions by a simple yet generalizable method. Herein, we propose a facile approach to fabricate multifunctional materials by programming the spatial distribution of crystal size in semicrystalline polymers. Various crystal size patterns in both plane and depth directions are introduced by the photothermal effect of printed ink and subsequent crystallization at different temperatures, which can be reprogrammed by repeated melting and crystallization. These obtained materials with well-defined crystal size heterogeneities exhibit diverse and regulable optics, mechanical and swelling properties, as manifested in applications including rewritable polymer paper, programmed mechanics, and advanced morphing devices. The light-induced crystal size heterogeneity of polymers has provided insights into developing advanced multifunctional materials.

中文翻译：

聚合物的光致结晶尺寸异质性可实现可编程写入、变形和机械性能设计

构建空间选择性晶体结构一直是使聚合物的功能和应用多样化的有效策略。然而，将结晶异质性编程到商业化聚合物中并通过简单但可推广的方法实现相关功能仍然具有挑战性。在此，我们提出了一种通过编程半结晶聚合物中晶体尺寸的空间分布来制造多功能材料的简便方法。通过印刷油墨的光热效应和随后在不同温度下的结晶，在平面和深度方向上引入了各种晶体尺寸图案，可以通过反复熔化和结晶来重新编程。这些获得的具有明确晶体尺寸异质性的材料表现出多样化和可调节的光学特性，机械和溶胀性能，如可重写聚合物纸、程序机械和高级变形设备等应用中所体现的那样。聚合物的光诱导晶体尺寸异质性为开发先进的多功能材料提供了见解。

更新日期：2022-05-19

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