This contribution highlights the functionalization of colloidal particles featuring high-symmetry patches with telechelic block copolymers and subsequent reversible self-assembly of the resulting particles into longer chain and branched structures using host–guest complexation. The 3-(trimethoxysilyl)propyl methacrylate (TPM)-based anisotropic particles, obtained through a cluster-encapsulation process, consist of poly(styrene) patches and are site-specifically functionalized with block copolymers bearing pendant viologen or azobenzene motifs. Key to the design is the engineering of heterotelechelic α-hydroxy-ω-formyl-poly(norbornene)s via ring-opening metathesis polymerization (ROMP). The block copolymers feature both main chain anchor points to the particle surface, as well as orthogonal reactive sites for cyanine dye conjugation. The polymeric particles undergo directed and reversible supramolecular assembly in the presence of the host cucurbit[8]uril.

中文翻译：

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聚合物胶体的光介导可逆组装

这一贡献突出了胶体颗粒的功能化，该胶体颗粒具有具有遥爪嵌段共聚物的高对称斑块，随后使用主客体络合将所得颗粒可逆地自组装成更长的链和支化结构。通过簇封装工艺获得的基于 3-(三甲氧基甲硅烷基) 甲基丙烯酸丙酯 (TPM) 的各向异性颗粒由聚（苯乙烯）贴片组成，并通过带有悬挂紫精或偶氮苯图案的嵌段共聚物进行位点特异性功能化。设计的关键是通过开环复分解聚合 (ROMP) 工程化异质遥爪 α-羟基-ω-甲酰基-聚(降冰片烯)。嵌段共聚物具有颗粒表面的主链锚定点，以及用于花青染料缀合的正交反应位点。