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Photonic Particles Made by the Confined Self-Assembly of a Supramolecular Comb-Like Block Copolymer
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2021-09-15 , DOI: 10.1002/marc.202100522 Guillaume Moriceau 1 , Cédric Kilchoer 1 , Kenza Djeghdi 1 , Christoph Weder 1 , Ullrich Steiner 1 , Bodo D Wilts 1 , Ilja Gunkel 1
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2021-09-15 , DOI: 10.1002/marc.202100522 Guillaume Moriceau 1 , Cédric Kilchoer 1 , Kenza Djeghdi 1 , Christoph Weder 1 , Ullrich Steiner 1 , Bodo D Wilts 1 , Ilja Gunkel 1
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Approaches that enable the preparation of robust polymeric photonic particles are of interest for the development of nonfading and highly reflective pigments for applications such as paints and display technologies. Here, the preparation of photonic particles that display structural color in both, aqueous suspension and the dry solid state is reported. This is achieved by exploiting the confined self-assembly of a supramolecular comb-like block copolymer (BCP) that microphase separates into a well-ordered lamellar morphology with dimensions that promote a photonic bandgap in the visible range. The comb-like BCP is formed by robust ionic interactions between poly(styrene-b-4-vinyl-pyridine) (PS-b-P4VP) BCP and dodecylbenzene sulfonic acid (DBSA), which selectively interacts with P4VP blocks. The components are combined in chloroform, and an aqueous emulsion is prepared. Evaporation of the organic solvent leads to the formation of solid microparticles with an onion-like 3D morphology. These photonic pigments display brilliant colors with reflectance spectra featuring pronounced optical bandgaps across the entire visible wavelength range with a peak reflectivity of 80–90%.
中文翻译：
由超分子梳状嵌段共聚物的受限自组装制成的光子粒子
能够制备坚固的聚合物光子粒子的方法对于开发用于油漆和显示技术等应用的不褪色和高反射颜料很重要。在这里，报道了在水悬浮液和干燥固态两种状态下都显示结构颜色的光子粒子的制备。这是通过利用超分子梳状嵌段共聚物 (BCP) 的受限自组装实现的，该共聚物微相分离成有序的层状形态，其尺寸促进可见光范围内的光子带隙。梳状 BCP 是由聚（苯乙烯- b -4-乙烯基-吡啶）（PS- b-P4VP) BCP 和十二烷基苯磺酸 (DBSA)，可选择性地与 P4VP 块相互作用。将组分在氯仿中混合，制备水乳液。有机溶剂的蒸发导致形成具有洋葱状 3D 形态的固体微粒。这些光子颜料显示出鲜艳的色彩，其反射光谱在整个可见波长范围内具有明显的光学带隙，峰值反射率为 80-90%。
更新日期：2021-09-15
中文翻译：
由超分子梳状嵌段共聚物的受限自组装制成的光子粒子
能够制备坚固的聚合物光子粒子的方法对于开发用于油漆和显示技术等应用的不褪色和高反射颜料很重要。在这里，报道了在水悬浮液和干燥固态两种状态下都显示结构颜色的光子粒子的制备。这是通过利用超分子梳状嵌段共聚物 (BCP) 的受限自组装实现的，该共聚物微相分离成有序的层状形态，其尺寸促进可见光范围内的光子带隙。梳状 BCP 是由聚（苯乙烯- b -4-乙烯基-吡啶）（PS- b-P4VP) BCP 和十二烷基苯磺酸 (DBSA)，可选择性地与 P4VP 块相互作用。将组分在氯仿中混合，制备水乳液。有机溶剂的蒸发导致形成具有洋葱状 3D 形态的固体微粒。这些光子颜料显示出鲜艳的色彩，其反射光谱在整个可见波长范围内具有明显的光学带隙，峰值反射率为 80-90%。
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