Terraced and 3D Pyramid‐Shaped Polymer Single Crystal via Low Temperature‐Assisted Microfluidic Technology

3D pyramidal polymer single crystals provide spatial gradient variations within the crystal molecules, and these variations facilitate the study of the relationship between structure and properties within the molecules of various complexes with anisotropic structures. As described herein, a low‐temp...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2022-03, Vol.43 (5), p.e2100747-n/a
Main Authors: Li, Shi, Li, Zhihua, Wang, Xiao, Zhan, Pei, Gui, Xuefeng, Hu, Jiwen, Lin, Shudong, Tu, Yuanyuan
Format: Article
Language:English
Subjects:
Crystal growth
Crystal structure
Crystallization
Crystals
Dichloromethane
Dimethyl sulfoxide
Homogeneous structure
Liquid Crystals - chemistry
Low temperature
Microfluidics
Molecular structure
Polymers
Polymers - chemistry
Prepolymers
pyramids
Single crystals
Substrates
Temperature
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Summary:3D pyramidal polymer single crystals provide spatial gradient variations within the crystal molecules, and these variations facilitate the study of the relationship between structure and properties within the molecules of various complexes with anisotropic structures. As described herein, a low‐temperature‐assisted microfluidic pore channeling approach is proposed to prepare structurally ordered polymer single crystals. A mixture of dichloromethane and dimethyl sulfoxide is used as a prepolymer, and a liquid microfluidic technique is employed to grow the end‐functionalized polymers into 3D polymer single crystals. Through the ordered growth of single crystals, a personalized pyramidal pattern with a homogeneous structure is formed. To evaluate the mesh node density, low‐temperature growth time and substrate type are also investigated. Rectangular, pyramidal, and dendritic patterns are synthesized via low‐temperature single crystal growth. This work shows that low temperature‐assisted microfluidics provides a novel means to tune the 3D structure of polymer single crystals. 3D structurally ordered and terraced pyramidal polymer single crystals are prepared via a low‐temperature‐assisted microfluidic channel method.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.202100747