Archimedean Spirals with Controllable Chirality: Disk Substrate-Mediated Solution Assembly of Rod-Coil Block Copolymers

被引：1

作者：

Cai, Chunhua ^{[1
]}

Tang, Hongfeng ^{[1
]}

Li, Feiyan ^{[1
]}

Xu, Zhanwen ^{[4
]}

Lin, Jiaping ^{[1
]}

Li, Da ^{[1
]}

Tang, Zhengmin ^{[2
]}

Yang, Chunming ^{[3
]}

Gao, Liang ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat,Key Lab Ultrafine, Shanghai 200237, Peoples R China

[2] Zhejiang Univ, Affiliated Hosp 1, Coll Med, Dept Lab Med, Hangzhou 311121, Peoples R China

[3] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

[4] Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

来源：

JACS AU | 2024年 / 4卷 / 06期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

Archimedean spiral; microdisk substrate; rod-coilblock copolymer; self-assembly; theoretical simulation; DIBLOCK COPOLYMERS; PATTERNS; POLYMERS; TEMPERATURE; SIMULATION; PARTICLES; BRUSHES; IMPACT; GROWTH;

D O I：

10.1021/jacsau.4c00324

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Spirals are common in nature; however, they are rarely observed in polymer self-assembly systems, and the formation mechanism is not well understood. Herein, we report the formation of two-dimensional (2D) spiral patterns via microdisk substrate-mediated solution self-assembly of polypeptide-based rod-coil block copolymers. The spiral pattern consists of multiple strands assembled from the block copolymers, and two central points are observed. The spirals fit well with the Archimedean spiral model, and their chirality is dependent on the chirality of the polypeptide blocks. As revealed by a combination of experiments and theoretical simulations, these spirals are induced by an interplay of the parallel ordering tendency of the strands and circular confinement of the microdisks. This work presents the first example regarding substrate-mediated self-assembly of block copolymers into spirals. The gained information could not only enhance our understanding of natural spirals but also assist in both the controllable preparations and applications of spiral nanostructures.

引用

页码：2363 / 2371

页数：9

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