Fabrication and Photo-responsive Behavior of Two-dimensional Ultrathin Polymeric Nanosheets

Miao-miao Wang; Yun-qing Cao; Peng-chao Wu; Dong-xin Zhang; Hai-bao Jin; Shao-liang Lin

doi:10.11777/j.issn1000-3304.2025.25244

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Fabrication and Photo-responsive Behavior of Two-dimensional Ultrathin Polymeric Nanosheets

Research Article | 更新时间：2026-03-23

- Fabrication and Photo-responsive Behavior of Two-dimensional Ultrathin Polymeric Nanosheets
- Acta Polymerica Sinica Vol. 57, Issue 3, Pages: 776-785(2026)
- 作者机构：
  
  华东理工大学材料科学与工程学院上海市先进聚合物材料重点实验室上海 200237
- 作者简介：
  
  Hai-bao Jin, E-mail: haibaojin@ecust.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2025.25244
  CLC：
- CSTR：32057.14.GFZXB.2025.7511
- Received：21 September 2025，
  
  Accepted：10 November 2025，
  
  Online First：14 January 2026，
  
  Published：20 March 2026
- 稿件说明：
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王苗苗, 曹蕴青, 武鹏超, 张栋鑫, 靳海宝, 林绍梁. 二维超薄聚合物基纳米片的制备与光响应行为研究. 高分子学报, 2026, 57(3), 776-785.

Wang, M. M.; Cao, Y. Q.; Wu, P. C.; Zhang, D. X.; Jin, H. B.; Lin, S L. Fabrication and photo-responsive behavior of two-dimensional ultrathin polymeric nanosheets. Acta Polymerica Sinica (in Chinese), 2026, 57(3), 776-785.
王苗苗, 曹蕴青, 武鹏超, 张栋鑫, 靳海宝, 林绍梁. 二维超薄聚合物基纳米片的制备与光响应行为研究. 高分子学报, 2026, 57(3), 776-785. DOI： 10.11777/j.issn1000-3304.2025.25244. CSTR： 32057.14.GFZXB.2025.7511.

Wang, M. M.; Cao, Y. Q.; Wu, P. C.; Zhang, D. X.; Jin, H. B.; Lin, S L. Fabrication and photo-responsive behavior of two-dimensional ultrathin polymeric nanosheets. Acta Polymerica Sinica (in Chinese), 2026, 57(3), 776-785. DOI： 10.11777/j.issn1000-3304.2025.25244. CSTR： 32057.14.GFZXB.2025.7511.

摘要

刺激响应型长程有序二维超薄纳米材料在膜分离、光电器件、催化、生物医用等领域应用前景广阔，而两亲性交替共聚物在构筑此类纳米片方面具有独特的结构优势. 然而，受限于单体种类与合成方法，功能型交替共聚物的绿色合成及及高效构筑刺激响应型二维超薄纳米片的仍面临挑战. 本研究通过Ugi多组分缩聚，合成了一种侧链型两亲性交替偶氮苯共聚物，并通过溶液自组装制备了厚度约3.2 nm的微米级二维超薄聚合物基纳米片，其内部分子排列遵循“侧基疏水共轭堆积”机制. 由于偶氮苯的光致异构化特性，在紫外光和可见光的交替照射下，聚集体能够实现从二维超薄聚合物基纳米片到球形胶束的可逆结构转变. 该研究为刺激响应型二维超薄聚合物基纳米片的制备提供了理论指导.

Abstract

Stimuli-responsive long-range-ordered two-dimensional (2D) ultrathin nanomaterials are capable of significant applications in the fields of membrane separation

optoelectronic devices

catalysis

and biomedicine. Amphiphilic alternating copolymers (AACs) exhibit inherent advantages in constructing 2D ultrathin polymeric nanosheets (2D UTPNSs) due to their unique topological structures and self-assembly properties. However

green synthesis of functional alternating copolymers and subsequently high-efficient fabrication of stimuli-responsive two-dimensional ultrathin polymeric nanosheets remains challenging

primarily attributable to the limited availability of monomer types and synthetic methodologies. Herein

a side-chain-type amphiphilic alternating azocopolymers was designed and synthesized

via

Ugi multicomponent polycondensation. Followed by subsequent solution self-assembly

micrometer-sized 2D UTPNSs with a thickness of about 3.2 nm was subtly produced based on the pendants hydrophobic conjugate stacking mechanism. Owing to the photo-induced isomerization property of azobenzene

the reversible structural transformation from 2D UTPNSs to spherical micelles was achieved under the alternating irradiation with UV and visible light. Our work provides theoretical guidance for the preparation of stimuli-responsive 2D UTPNSs.

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